25 most unreliable new cars - survey - Warning

I came across this article - 25 most unreliable new cars

www.whatcar.com/news/25-most-unreliable-new-cars/n...0

I was thinking about a Nissan Qashqai. I was surprised to see in the bottom 25. Does anyone know why that could be?.

The Nissan X-trail and Nissan Note are there.

Nissan have improved the style and design of their cars, but the reliability does not seem to be so great?

25 most unreliable new cars - survey - Andrew-T

Prepare for a series of posts including the word Renault ....

25 most unreliable new cars - survey - SLO76
“I was thinking about a Nissan Qashqai. I was surprised to see in the bottom 25. Does anyone know why that could be?.”

Because Nissan are owned by Renault and today they effectively build rebodied Renault’s. The Qashqai is basically a Renault Megane underneath and the Micra a Clio. If you want Japanese reliability you need to look at Mazda, Honda and Toyota but still certain diesel variants need to be avoided or treated with caution.
25 most unreliable new cars - survey - skidpan
Because Nissan are owned by Renault

Renault own 43.4% of Nissan and Nissan own 15% of Renault. That does not suggest to me that Nissan is owned by Renaul anymore than Renault is owned by Nissan. They are not joint owned like the VAG companies or BMW/Mini

We have had 2 Micras and a Note in recent years. In 10 years of ownership the Micras never let us down and other than servicing the parts needed were a tailgate release micro switch (warranty) and a front spring (after 7 years).

The Note was also good. In 3 years it never let us down but did need new front antiroll bar bushes (warranty). In truth I was surprised that they failed young (new ones were an updated design/material) but the Note was not the first car we have owned that needed new bushes under warranty and probably will not be the last.

Would buy another Nissan if a car they made suited our needs at the right price. Never had a Renault, probably never will.

25 most unreliable new cars - survey - Steveieb
Hopefully Nissans performance should improve if they begin to engineer their own power trains and electrics as in the past when they were 100%. Reliable.
But no other Japanese cars in the Hall of Shame and very few VAG considering their volumes.
What a surprise about Tesla , the power train being fine but let down by the ancillaries.
But it's obvious that JLR owners never bother with these reports and are prepared to accept these statistics as long as they have the status of a RR on the drive.
25 most unreliable new cars - survey - Leif
Hopefully Nissans performance should improve if they begin to engineer their own power trains and electrics as in the past when they were 100%. Reliable. But no other Japanese cars in the Hall of Shame and very few VAG considering their volumes. What a surprise about Tesla , the power train being fine but let down by the ancillaries. But it's obvious that JLR owners never bother with these reports and are prepared to accept these statistics as long as they have the status of a RR on the drive.

I had the old style Micra, the last of the Mini lookalikes and it was not 100% reliable. The speedo failed, such that I did 70 mph in a 30 while following other traffic. The exhaust blew, though that’s perhaps normal for most cars. And the ECU failed and needed replacing, which is when I sold the then non functional car to a salesman at the local Nissan garage where the car was towed to. Some cars and brands do seem to garner an exaggerated reputation for reliability, perhaps because some people have examples with no faults.

25 most unreliable new cars - survey - groaver

I recall a Daihatsu dealer I bought a car from tell me that his fleet of Micras he used were not a patch on the previous version in terms of reliability. It was that odd-ball looking one that followed the Noddy version. He stated that the amount of Renault parts in them was the issue.

I have to say that I find the marque to be the least Japanese feeling of the brands we get in the UK .

25 most unreliable new cars - survey - SLO76
Although it’s a strangely structured set up Renault do own Nissan. You are correct in saying they have a 43.4 percent stake in Nissan and that Nissan holds a 15 percent stake in Renault but Renault’s share are voting and Nissan’s Non effectively giving Renault control. Nissan’s in Europe are largely just rebodied Renault’s using Renault engines, gearboxes and electronics. The Micra is even built in France alongside the Clio. The Alliance is controlled by the French firm.

Edited by SLO76 on 01/01/2019 at 18:55

25 most unreliable new cars - survey - SteveLee
If you want Japanese reliability you need to look at Mazda, Honda and Toyota but still certain diesel variants need to be avoided or treated with caution.

You forgot Suzuki and Subaru (although the letter do have more than their fair share of clutch issues and as you stated, the diesels are rubbish.)

25 most unreliable new cars - survey - Leif
Interesting. So it looks like Jaguar Land Rover, French cars and Nissan are the common links, with a few VAG products thrown in, including mine, grrrr, obviously a faulty survey ...

Yet another survey where the VW Up is significantly less reliable than the Skoda Citigo. Except they are made in the same factory, with essentially the same components. Oops. Mmmm.

We’ve discussed these surveys before, and they are rather superficial and misleading. The Up may be more unreliable because people buy it with more fancy options, such as heated seats, and remote central locking, and that increases the likelihood of a failure. Also some cars will have a harder life than others, some makes are favoured as shopping trolleys, others are cruisers for sales persons.

But I still wouldn’t buy JLR or French. ;) Well, okay, I might buy French.
25 most unreliable new cars - survey - Steveieb
Coincidence that my neighbour had to call the RAC for the third time this month to get her 66 place Nissan Juke started.
Just seems underhanded to portray All Nissans as having Japanese levels of reliabilty whereas they are masquerading in their body shell only. I can only assume that Renault will carry out their threat at some stage and return Nissan production at Washington to the underused Renault facuilities in France.
I think you will find the last reliable Micra was prior to the Noddy car shape and were on a K plate.
My friend bought one for £400 ran it for 12 months despite filling it and running it on a tank of diesel at one stage.

And they helped save a life when a suicide victim jumped off a multi story building only to land on the roof of a MK 1 Micra which was so thin it collapsed and broke his fall.

I wonder if Renault are planning the same deception now that they own Mitsubishi and Lada ?
25 most unreliable new cars - survey - KB.

^^^ In connection with the above, on the face of it, Dacia, who evidently use the previous generation of Renault's components, ought to have dreadful reviews and reliability. Some would say a Renault is bad enough, but a budget Renault, built right down to a price, ought to be worse still. However, that doesn't seem to be the case from the bits I happen across.

Why's that then?

25 most unreliable new cars - survey - Leif

^^^ In connection with the above, on the face of it, Dacia, who evidently use the previous generation of Renault's components, ought to have dreadful reviews and reliability. Some would say a Renault is bad enough, but a budget Renault, built right down to a price, ought to be worse still. However, that doesn't seem to be the case from the bits I happen across.

Why's that then?

This might be for the same reason that the Citigo and Up, which are essentially the same car, are widely separated in the survey. Dacia might have simpler or less electronics meaning they are more reliable, and maybe more basic engines, less auto boxes etc. Or put another way, buy a poverty spec. Renault and you are fine. Just a guess.

25 most unreliable new cars - survey - RT

Some of these "reliability" surveys are badly flawed as they don't eliminate "expectation" - of course someone paying a load of money for an Audi expects better reliability than someone buying a Skoda, despite the fact they share many parts/assemblies.

I certainly wouldn't use one of these surveys to help me decide which car to buy.

25 most unreliable new cars - survey - SLO76

^^^ In connection with the above, on the face of it, Dacia, who evidently use the previous generation of Renault's components, ought to have dreadful reviews and reliability. Some would say a Renault is bad enough, but a budget Renault, built right down to a price, ought to be worse still. However, that doesn't seem to be the case from the bits I happen across.

Why's that then?

People who typically buy a new Dacia are coming out of an older car than those who buy more mainstream and prestige brands. A new Sandero will seem like a good quality item to someone stepping out of a tatty fifteen year old Corsa and they’ll forgive the occasional issue as again compared to the constant failures on their old car it will be a relief. Same thing explains why mechanically identical Skoda’s fare better than VW’s and Audi’s. People who buy them have lower expectations and the cars themselves are usually less complex than the equivalent VW or Audi and thus there’s less to go wrong. Look at the part exchanges taken in by a Skoda or Dacia dealer and you’ll see plenty of decade old motors or older while the VW and Audi dealers will see mostly end of term PCP or lease stock and a fair amount of more valuable non-franchise part-exchanges, most of which will be under 5yrs old. We found the same with Proton customers in the 90’s who were on the whole a very contented bunch when the firm was essentially selling restyled Mitsubishi’s. The trade-ins were mostly older cars, most of which ended up in our trade section while the best stock we got in came in against Mitsubishi’s and were almost always much younger, more modern and more valuable. These buyers had higher expectations and were much quicker to complain. Apologies for no paragraphs but it’s a quirk of the website when you use the quote previous post option that it doesn’t post your comment in paragraphs. No idea if this is just when using an iPhone.

Edited by SLO76 on 02/01/2019 at 00:23

25 most unreliable new cars - survey - expat

It will be interesting to see how Chinese cars go. There are not enough on the roads just now to give a meaningful result however that may change.

25 most unreliable new cars - survey - Andrew-T

<< No idea if this is just when using an iPhone. >>

I think it probably is, SLO. My paragraphs always remain (from a PC).

25 most unreliable new cars - survey - Leif

Whilst I do not disagree with your points, and I made some of them earlier on, this survey I believe is just for faults rather than owner satisfaction, so expectations in this case should not play a role.

25 most unreliable new cars - survey - colinh

....and to one place of decimals - must be accurate!

25 most unreliable new cars - survey - madf

"Non engine electrics" is the overwhelming issue in over 70% of the 25 cars listed - and in almost all the worst third.

ie.. poor wiring, poor connectors, bad design.. etc.

When you save money bu shortening cable lengths so fitting is difficult and don't use electrical grease on the connections and secure mountings to avoid vibration or damp ingress..... you get non Japanese quality.

And guess what : the French AND Jaguar have always been pants at electrical systems.. Obviously they have not seriously - I mean SERIOUSLY- tried to eliminate the root causes. And incompetent dealers tend not to help..

25 most unreliable new cars - survey - Steveieb
Of course the last reliable Nissan was the Bluebird, the taxi drivers first choice.
All Nissan components and total reliability but few sales so Nissan stopped making family cars and moved over to SUV s and sales rocketed overnight.
25 most unreliable new cars - survey - SLO76
Of course the last reliable Nissan was the Bluebird, the taxi drivers first choice. All Nissan components and total reliability but few sales so Nissan stopped making family cars and moved over to SUV s and sales rocketed overnight.

The Sunny and Primera after this were pretty bombproof too, offering similar durability but with a dose of drive appeal sadly lacking on the old Bluebird. The Patrol and Terrano were two of the most robust motors ever made, especially the 2.7 4cyl diesel in the latter which was shared by most of the LTi black cabs until they were replaced by the far less reliable Ford Transit motor. I’ve seen these old 2.7 diesels with well over a million miles.
25 most unreliable new cars - survey - daveyK_UK

Nissan in Europe is really Renault

Unlike Peugeot and Citroen who produce some excellent cars, Renault produce junk

Not all French manufacturers are bad, just Renault

25 most unreliable new cars - survey - Senexdriver
On a more general note regarding reliability, it seems there was a golden period somewhere around the eighties when rust had been significantly deferred, if not eliminated, and engines had not become so darned complicated that the diy-er could no longer work on them. And the obligation to cram a car with toys (as Clarkson called them) had not yet led to the misery of electrical problems. I wasn’t affluent enough to afford new cars in those days, but I had a used Vauxhall Carlton estate which was probably a good example of a car from what I see as a crossover period. I bought it in 1986 at 3 years old with 42,000 miles on the clock and kept it until about 93,000 miles, as I recall. They were largely trouble-free miles; we had an ignition problem at one stage which turned out to be a duffy coil and was soon resolved and towards the end of our time with it the automatic choke began to play up leading to poor carburation. But it had wind-down windows, a distributor and old fashioned engine electrics, a normally aspirated engine, easily replaceable bulbs in all the lights and other features common to that time. I think possibly the most complicated electrical feature was the radio/cassette player built into the dashboard!

In saying all this, however, I have never suffered electrical problems with any of the cars I have owned subsequently. That is with the exception of my current car, an A4 Avant which suffered auto dip failure on the passenger wing mirror soon after I took delivery. It took 3 trips to the dealer before it was fixed and the car has been fine in all respects otherwise.
25 most unreliable new cars - survey - Sulphur Man

Interesting. So much for Tesla 'low maintenance', if the cars are so poorly assembled in the first place.

Nissan feature a lot, which is surprising. No other Japanese or Korean manufacturers though.

Land Rover...as hopeless as ever. Yet they still sell them hand over fist. The astonishing power of brand over belief.

25 most unreliable new cars - survey - Miniman777

The fact so many JLR cars are in that list should be a major concern, and despite the known issues going back many years, this survey suggests there has been no improvement.

I am really glad I didn't buy an F Pace which I came very close to as an ex JLR employee, but reliability issues were a massive concern. In the end I opted for the new 2018 (G01) model BMW X3 which has been superb, and effortless with its 3.0diesel engine. Though I am bothered by the What Car report suggesting owners of 2017 onwards BMW 5 series were paying £500 on average for repairs, which considering a 3 year warranty applies, would appear to be contradiction, as non-warranty items wouldn't cost £500.

As for those who have castigated Nissan, I have a Oct 65 plate Juke Tekna 1.5dci as a company car (goes back this year, and I wont have another leased car as I get hammered on tax), and just turned over 62,000 miles. Apart from replacing air con pipes which chaffed in 2016 under warranty, the car has been utterly reliable, and I suspect part of the reliability is related to how you drive it. 90% of journeys in the Juke have been between 20 and 140 miles on fast A roads, dual carriageways and motorways, so it's never been stop-start in city traffic which is no good for cars clogging up the DPF. As for Tesla, yep, lots have believed the hype from Elon Musk, and are foolish for still doing so IMO.

Now if that Japanese or Koreans produced a mid-sized SUV with a powerful 3.0 diesel or petrol, with a 0-60 time of 7 seconds or less, that would be a game over for the Brits and Germans.

25 most unreliable new cars - survey - carl233

Usual suspects in the list. Every time I get a C Class pool car from the office there is always some error message on the dash. All of them less than 3 years old. Would not like to run one longer term for sure....

25 most unreliable new cars - survey - SteveLee

I must have been very lucky with my Jags, My XJ40 served me well (surprised me too) particularly as it was the world's first car with a full mupliplex electrical system, the XJR and XJ8 were absolutely reliable, the latter turning in over 150K fault-free miles other than the park sensor for the wiper motor + usual suspension/tyre consumables - it's still going strong with 230K+ miles on it - it's had a bit of welding and fettling these days (same owner who bought it off me 10+ years ago) but then it is 20 years old now. Engine and transmission have never been touched - and I used to thrash it mercilessly (wonderful NASCAR like sound when revved hard).

The older (1970s) Jags I had - were a bit - well, touch and go!

I've got a list as long as my arm of friends and work colleagues with major BMW car issues, particularly, engine failures.

25 most unreliable new cars - survey - Energyman
I have been running a Nissan Pulsar 1.5 diesel for last 3 years, air con pipes and battery repacked under warranty, both appear to be known faults. Nothing else needed apart from usual service items, can’t say I am disappointed with that. Now out of warranty will be changing soon, but to what?
Shortish list, 15k. budget,, 20k pa, 6 to 12 month old, Honda Hrv, Peugeot 2008, Kia stonic or Hyundai, equivalent, Mitsubishi asx, anymore? Petrol or diesel,, no short runs, 10 miles trip to supermarket alone, possible auto this time, something more upright. Otherwise would sreriously consider another Pulsar. 1.5 techna spec.
25 most unreliable new cars - survey - Steveieb
The future for Nissan is to follow Mazda who cast off the tie up with Ford and started manufacturing and designing their own breed of cars.
The design of the new Mazda 3 looks an absolute winner.
But Mazda have been able to control the quality of their cars more closely by manufacturing in Japan using quality components unlike Nissan who have been forced to sell their heritage to the French State . And what a heritage , just look at the Datsun 240z !
25 most unreliable new cars - survey - Gibbo_Wirral

Aren't Mazda engines regularly slated on here?

25 most unreliable new cars - survey - madf

Aren't Mazda engines regularly slated on here?

Only the deeesel ones

25 most unreliable new cars - survey - Engineer Andy

Mazda is s relatively small motor company, at least compared to the VAGs, Fords and Toyotas of this world. As such, and as a result of sharing platforms with Ford, they didn't have a ready-made diesel engine for their cars, so continued to buy in other makes' engines, spending their far more limited R&D money on developing their petrol engines as well as relatively moderate alterations to their car lineup since their divorce from Ford.

They have also been jointly developing a hybrid/EV platform with Toyota, presumably to share the cost and risk. Hopefully if they reduce their diesel engine reliance and, like Toyota, go into hybrids/EVs, then their current woes as regards diesels will largely disappear.

If they can up their game on the long-term reliability front (especially as regards corrosion proofing) and customer service, then they have a very rosy future, as they already have a great looking line-up that drive well (especially with the introduction of the gen-4 Mazda3). The first should be relatively easy to do, the second will be harder and take longer.

25 most unreliable new cars - survey - Leif

Interesting. So much for Tesla 'low maintenance', if the cars are so poorly assembled in the first place.

Nissan feature a lot, which is surprising. No other Japanese or Korean manufacturers though.

Land Rover...as hopeless as ever. Yet they still sell them hand over fist. The astonishing power of brand over belief.

It does astonish me that JLR sell in such quantities, although by all accounts Jaguar are currently struggling. As you suggest, it must be branding, maybe some people really do consider a Range Rover as a status symbol.

As for Tesla, now that other manufacturers are producing competing cars, I wonder if they will survive? They do look nice though.

25 most unreliable new cars - survey - skidpan

they have a very rosy future, as they already have a great looking line-up that drive well (especially with the introduction of the gen-4 Mazda3).

The current Mazda 3 is indeed a great looking car but when we looked at it the car lacked many things we looked for, we never even drove it. Examples were they have a very rosy future, as they already have a great looking line-up that drive well (especially with the introduction of the gen-4 Mazda3). (compared to the Leon) poor boot space, lack of well fro full size spare, poor rear seat access, poor rear visibility. We were not expecting the engine to be stellar either, the more powerful version in the 6 was poor when we tried it compared to modern petrol turbo's.

I suspect they will remain a minor player making cars that whilst OK fall below the higher standards being set by others.

25 most unreliable new cars - survey - Engineer Andy

I've been saying for a while that to survive and thrive, Mazda needs a decent long-term tie-up with another major manufacturer. Toyota would, to me, be a great choice as each brings to the party different strengths to complement the other's known weaknesses. Honda would be great too, especially as they have some excellent diesels in comparison to Mazda's unreliable units.

Both need to up their game as Hyundai/Kia is seriously on the rise globally, and in Europe the smaller names have essentially been sequeezed out of the market by the big boys. Mazda's UK sales are significantly below that from their peak around 2004 - 2007. I think that their less-than-stellar diesel engine reliability and hit-and-miss dealership experience haven't helped, and as you say, their conservative approach on the petrol engines in the last 5-10 years have meant they can't really claim the 'zoom-zoom' mantle any more.

Let's see what the new SA-X and hybrid engines can do - time will tell whether they can catch up with the turbo-petrols. Still, better than Nissan, who can't seem to shake off the poor engineering design of their cars of late - too much Renault influence in my view.

25 most unreliable new cars - survey - Engineer Andy

Just found another reason why, to some extent, people aren't buying Mazdas - their change (from the cars before the divorce from Ford to afterwards) to tyre combos that are rarer than hen's teeth! Just looked at some nearly new second hand examples on my local dealership's website:

Mazda2s with either 185/65 R15 H (up to SE-L Nav models) or 185/60 R16H (Sport models), which most tyre dealers don't stock aside from a few winter tyres or cheapo ditchfinders (less than 10 in total), and those few that do charge roughly £125 and £150 each. God knows why the second tyre was fitted to the top Sport 115, as its top speed (according to my dealership's data and HJ's specs) is 129mph, only 1mph less than the speed rating for those H-rated tyres.

The same goes for the latest 3 shod on 205/60 R16 V or 215/45 R18 W - a bit more choice, but still 30% and up to 150% more expensive than the tyres on the gen-1 and 2 cars.

My old Mazda3 can be shod on either 205/55 R16 V or 195/65 R16 H or V (top speed only 116 or so) - tyre cost in the £60 - £75 and £55 - £65 range with hundreds available for both, AND the latest tyres which have better grip and mpg ratings too, including the complete ranges of all-season and winter tyres.

Why spend money on a new car that's ok in terms of performance and then have to spend £500 - £750 on tyres that aren't that good. And, in both cases, the latest cars are specced with OEM tyres that are either not available in the UK or are rare and blimmin' expensive. I could understand this if they were ultra high performance on a fast sports saloon, but not a Mazda that has a 0-60 time of 9-10 sec (Mazda2) or 8.5 - 8.9 sec (Mazda3).

When I asked a sales rep at my dealer about these odd sizes (on the 3) when I was getting my car serviced the other day, he tried to change the subject and palm me off. They're just asking to lose customers when rival makes offer cars with standard sized tyres (with no penalty in ride quality, handling or longevity), space-saver or full-sized spares as standard or as cheap options (with no reduction in boot space).

The number of times I've heard (via phonecalls to customers when in the dealership) and seen irate customers go "what the ****?!" when they hear the price quoted to change a tyre roughly the same size as mine on similar performing cars - I would hope by now that Mazda is getting word of pee'd off customers who then desert them for other brands (I notice that the vast majority of cars PXed or flogged back to dealers are Sport models on the larger rims). I wonder if Mazda did all this in cahoots with the tyre manufacturers as a money-making wheeze that has now (pardon the pun) backfired.

Mazda: KISS!

25 most unreliable new cars - survey - Steveieb
Can someone explain how such an accomplished manufacturer could have got it wrong so badly with the Dpf problems with their Diesel engines. When their petrol engines are state of the art !
And to turn down customers requests for assistance when the engines fell apart so soon after the warranty expire .
And whether it is now safe to buy a Mazda diesel ?
25 most unreliable new cars - survey - SLO76
“And whether it is now safe to buy a Mazda diesel ?”

I wouldn’t. The firm have already confirmed that they don’t intend on investing further in Diesel engines so what exists now is as good (or bad) as it gets.
25 most unreliable new cars - survey - FP

I avoided the diesel engine when buying my CX-5. Some reckon Mazda finally got it right with their latest diesels, but the fact is that only time will tell and I wasn't prepared to take the risk. By the time we know, things will have moved on anyway.

Mazda is preparing to release a 2-litre petrol engine (SKYACTIV-X) with (assisted) compression ignition and supercharger in 2019, which they claim will change the landscape for petrol engines, offering a 20 - 30 % increase in efficiency over their current SKYACTIV-G engine.

The new engine produces 181 bhp as against the current 162.

Sounds interesting.

Edited by FP on 05/01/2019 at 00:09

25 most unreliable new cars - survey - SLO76

I avoided the diesel engine when buying my CX-5. Some reckon Mazda finally got it right with their latest diesels, but the fact is that only time will tell and I wasn't prepared to take the risk. By the time we know, things will have moved on anyway.

Mazda is preparing to release a 2-litre petrol engine (SKYACTIV-X) with (assisted) compression ignition and supercharger in 2019, which they claim will change the landscape for petrol engines, offering a 20 - 30 % increase in efficiency over their current SKYACTIV-G engine.

The new engine produces 181 bhp as against the current 162.

Sounds interesting.

My fear here is that superchargers tend to have a more limited lifespan than turbochargers. VW G60’s tended to wear out beyond 80k, the Mini Cooper S was known to burn out around the same. Mazda used to make a supercharged diesel 626 in the 90’s but it sold in small numbers and wasn’t particularly fast or economical. Mercedes seems to have it right with few issues until big mileages but they still tend to give up well before a well maintained turbo. I guess it fits with compression ratio the new Mazda motors run at and turbocharging doesn’t.
25 most unreliable new cars - survey - Engineer Andy

Mazda will be having lots of new engines coming on-stream in the next few years:

  • The SA-X SCCI engine mentioned above;
  • A new 1.8 TDi, possibly replacing the modified PSA/Ford 1.6 that was downsized to 1.5 ltires;
  • A really fancy-pants hybrid, maybe two engines, one probably similar to/same as the Prius next-gen engine, the other apparently one with (yep, they don't know when to kill it off) a hybrid w***el engine;
  • Plus an EV may be on the way too...

It's noticeable by looking on their website that they are seriously scaling back their diesel offerings on their smaller cars - the 2, 3 and CX-3 (admitedly the 3 is being pared back to far less variants in readiness for the change to the gen-4 car in the Spring), whereas before about 40% of the sub-models were diesel. I would say it's down to about 10% across those three cars in total (and no 2s at all).

I suspect Dieselgate and the fallout from their diesel engine woes has scared them big time. Not sure who prodcues their new 1.8TDi (going in the gen-4 Mazda3 and likely others) - it may be another bought-in one. Personally speaking, they should've developed a hybrid far sooner.

25 most unreliable new cars - survey - expat

Mazda will be having lots of new engines coming on-stream in the next few years:

  • The SA-X SCCI engine mentioned above;
  • A new 1.8 TDi, possibly replacing the modified PSA/Ford 1.6 that was downsized to 1.5 ltires;
  • A really fancy-pants hybrid, maybe two engines, one probably similar to/same as the Prius next-gen engine, the other apparently one with (yep, they don't know when to kill it off) a hybrid w***el engine;
  • Plus an EV may be on the way too...

The problem with gee whiz new engines is that we won't know if they are reliable for a few years. Mazda didn't get their diesels right. Lets hope they can get the new engines right.

25 most unreliable new cars - survey - Avant

"Just found another reason why, to some extent, people aren't buying Mazdas - their change (from the cars before the divorce from Ford to afterwards) to tyre combos that are rarer than hen's teeth!"

I suspect that it's only people who are as clued-up as you, Andy, who would think of that before buying a car. My Audi Q2 is similarly afflicted by rare-breed tyres (215/50/18) which I didn't discover until I found out that no-one does all-season tyres for it.

But it'a a quattro so hopefullty there will be anough traction on the OE Bridgestones. And I've put all-season Goodyears on to SWMBO's A1, so with luck we'll be OK if it snows.

25 most unreliable new cars - survey - Leif
I’m sure you’re right. I have never seen a reference to tyre size in a car review. I bet most if not all car reviewers miss that one.
25 most unreliable new cars - survey - SLO76
I’m sure you’re right. I have never seen a reference to tyre size in a car review. I bet most if not all car reviewers miss that one.

It is an issue worth researching before buying, even on a cheap older car. I bought a very tidy old Ford Cougar from a deceased estate a few years back. Car flew through an Mot and was near spotless but I discovered there are only two premium firms which make tyres for it at a cost that would’ve been more than the car was really worth. I flogged it and noticed that it never went through another Mot despite being a very nice, solid big car with a fast appreciating modern classic status. I’ll bet it was the cost of tyres all four of which were approaching replacement that killed it.

Edited by SLO76 on 05/01/2019 at 10:08

25 most unreliable new cars - survey - veloceman
I feel this is an interesting subject.
Whether the car is reliable or not, if the perception of the owner is that it’s not of the quality they expect then surely that is the point.
25 most unreliable new cars - survey - Engineer Andy
I’m sure you’re right. I have never seen a reference to tyre size in a car review. I bet most if not all car reviewers miss that one.

I was lucky that, with my old Micra, shod on unusual-ish 175/60 R13 H tyres that I could source (early 2000s) decent quality tyres for between £35 and £50 (fitted). The tyre fitter I used said that they were becoming more difficult to source and would soon have to raise prices.

I found out later that very few manufacturers even bother to make ANY tyres of that size nowadays (admitedly because many supermini/city cars now come shod on 14in or 15in rims) - a check the other day revealed a handfull left (less than 10), mostly ditchfinders or more expensive (not terrbible) old-design tyres, which were relatively poor on grip in the wet and noise, and very bad on mpg.

I now pay particular attention to what tyres any car I would consider come with, and also find out about the spare. It's a bit like whether a car has a left foot rest - no proper foot rest, no sale. Cannot take a spare of any kind, no sale. This has been of importance to me since that first occurance as my career in construction has meant I've been in and out of work, so I've always had to keep my eye on the bills, so value for money is a big issue with me.

The tyre issue also, as I've said before, has a bearing on us folk with bad backs - which means any car that either charges a fortune for certain features as optional extras and/or only has them (for a reasonable price) in Sport models shod on large rims and low profile tyres with no downsizing option (sometimes because of the larger brakes, even if the engine is unchanged) won't get a sale from me.

I would say I've been relatively lucky with my Mazda that I haven't (touch wood) had any non wear-and-tear failures as yet (as it's a petrol-engined car) so essentially only have contact with the main dealer for servicing, brake component replacements and a new clutch. Many other owners, especially ones onwing diesels, HAVE had poor dealership experiences, which is why I will be strongly considering other makes unless the new 3 improves on some issues from the gen-3 car and I have a decent main dealer locally.

25 most unreliable new cars - survey - Leif
Ah yes, the spare tyre. I must have had at least five punctures in my VW Up over six years. I’ve had one in my Polo over 9 months due to a pot hole. No space for a spare wheel, no sale, too right.
25 most unreliable new cars - survey - Andrew-T

Leif, where (or how) on earth do you drive to collect tyre damage at that rate? The last tyre deflation I can recall - apart from slow leakage at an alloy bead - was about 10 years ago: nail in a tyre on the car I had recently bought.

25 most unreliable new cars - survey - Engineer Andy

Leif, where (or how) on earth do you drive to collect tyre damage at that rate? The last tyre deflation I can recall - apart from slow leakage at an alloy bead - was about 10 years ago: nail in a tyre on the car I had recently bought.

Most of the time it's councils not keeping their streets swept and/or repairing potholes and damaged speed humps. We need to help them by reporting such issues asap when we come across them.

Some areas seem to be significantly worse than others - often rural roads and especially rat-runs are bad because there's not many houses around that people would then report problems, and people can't always do so easily/safely and accurately when driving on those routes. In urban areas, it's probably a combination of laziness on the part of locals and councils not able or willing to spend the money needed to keep the roads in good condition.

25 most unreliable new cars - survey - galileo

Around here there are always builders doing alterations/extensions, as I walk to the shops I often spot and pick up new screws that have fallen out of pickups and vans.

These were the cause of my last puncture.

25 most unreliable new cars - survey - Leif

Leif, where (or how) on earth do you drive to collect tyre damage at that rate? The last tyre deflation I can recall - apart from slow leakage at an alloy bead - was about 10 years ago: nail in a tyre on the car I had recently bought.

I was doing 30,000 miles a year for two years, and the punctures were from nails and screws. Such items were not uncommon on the industrial estate where I worked. There is also the suspicion that someone was placing them under the wheel, but that would only account for two,or three punctures. Before that it was just road debris. My last puncture was a rapid deflation due to hitting a pot hole. There was a sudden jolt as the car dropped six inches, then hit the exposed tarmac edge, within a mile the tyre was completely flat despite no apparent sign of damage. It does seem to have been very bad this last six years.

25 most unreliable new cars - survey - bazza

I don't think Leif's experience is unusual, I probably average one or two punctures a year, year on year . I thought that was normal! Total mileage about 20000 a year.

25 most unreliable new cars - survey - FP

"I don't think Leif's experience is unusual..."

I do. I haven't had a puncture for years - maybe fifteen. Probably getting on for 200,000 miles.

(Now I've put that, I'll probably get one tomorrow.)

25 most unreliable new cars - survey - dan86

I work for a local authority that has most services it provides still in house. Our depot is a nightmare for punctures. This is down to building services who when they park in a bay will sweep out their vans and leave all the crap just lying around. This year aswell has having to have 4 puncture repaird one in each tyre and iv'e done £300 in tyres.

2 tyres for my little work car on 205 60 16 tyres at £75 each for Avon zv5 tyres and one on our family car a Nissan on 215 55 19 v tyres at £150 a continental premium contact 2e. This was a brand new tyre put on just befor we purchased it as it still had the yellow an red lines on the tread.

I've now got another unrepairable puncture so will replace 2 tyres as I always replace in pairs unless the tyres are still new enough.

All this is due to carelessness and laziness. So I can sympathise with Leif.