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Why has my Nissan Qashqai had worse mpg since the engine computer system update? 23 Jan 2017 (Ask HJ)
I got a Nissan Qashqai 1.2 petrol from a main dealer at 9 months and 6000 miles and have run 3000 since then. Do you know anything about the recalled engine... -
Clutch replacement, should I replace the DMF at the same time? 29 May 2013 (Ask HJ)
I own a 2007 Citroen Xsara Picasso VTX 1.6 HDi and the clutch has started to slip with acceleration, but it's still OK for gentle cruising. I plan to... -
Should we use diesel additive in our engine to keep it in good condition? 30 Mar 2013 (Ask HJ)
We are focusing on news regarding fuel additives for use in diesel engines. With diesel cars now over 50 per cent market share in the UK, and very significant... -
Burning smell from A3 diesel 3 Sep 2012 (Ask HJ)
I have a 2010 Audi A3 2.0TDI Sport with a low mileage (15000). I bought it from an Audi dealer just over one year ago. Earlier this year the engine management... -
Why won't our KIA Venga return its manufacturer-quoted mpg figures? 2 Apr 2012 (Ask HJ)
We have recently bought a new KIA Venga 3 automatic for which the consumption figures were quoted as 48mpg for a long run. We've never had trouble achieving... -
Are my driving habits likely to be causing DPF problems on my Mondeo? 21 Jan 2012 (Ask HJ)
Over the recent past I have read what to me seem conflicting views on diesel-engined cars and the problems that different types of driving and mileage... -
I can't afford to change my 2001 Mondeo - should I take out a warranty on it in case of expensive problems? 8 Nov 2010 (Ask HJ)
I run a 2001 Ford Mondeo estate Ghia X, 2.0 petrol manual. I bought it in 2002 on the Ford Direct scheme. It has now done 85,000 miles and has been a fantastic... -
Regeneration game 17 Jul 2010 (Ask HJ)
We took delivery of a new Mercedes E350CDI Coupe Sport 2 months ago and have completed 2,000 miles. We choose it in comparison with the equivalent BMW... -
Can I fit non-runflat winter tyres to my Lexus NX? 25 Nov 2022 (Ask HJ)
I have recently taken delivery of a Lexus NX 450+ Sport with runflat tyres. I cannot find their winter equivalent but have been told (not convincingly)... -
Why is my car pinking under acceleration? 6 Jul 2019 (Ask HJ)
My 1999 Toyota MR2 seems to be rattling/pinking under acceleration. I’ve checked the timing and its spot on at 10’ BTDC. Can you suggest any other issues... -
Why does my air con sometimes blow warm air? 5 Jul 2018 (Ask HJ)
My Ford Transit Custom's air con is cold, but sometimes goes warm. There's no pattern to it. It's had a new relay and regas. When it's warm the fan isn't... -
Is it a good idea to have a Volvo 960 converted to run on LPG? 18 Apr 2017 (Ask HJ)
Would you advise having a Volvo 960 converted to run on LPG? -
Is there anything, other than long runs, that can clean a DPF? 2 Feb 2017 (Ask HJ)
What year were DPFs introduced by Ford and Vauxhall. Also is there anything out there that can really clean them, apart from long drives? -
Burbling from cooling system 21 Mar 2016 (Ask HJ)
I have just bought a 2007 Jaguar S-Type diesel and noticed a burbling sound from the cooling system. It usually lasts a couple of minutes then stops. The... -
Buying a used CLK - are they more trouble than they're worth? 9 Jan 2015 (Ask HJ)
My old Rover 25 has terminally broken. I have been offered a Mercedes-Benz CLK320 Avant Garde automatic petrol by a family member for £4000. The car might... -
Buying a used BMW M3 for £25k - which model is best? 17 Dec 2013 (Ask HJ)
I am about to retire and feel like treating myself to a real car having driven company rubbish over the years, I have had 10+ years of motor sport experience... -
Engine destroyed after running out of oil - is the garage to blame? 25 Sep 2013 (Ask HJ)
I put my Saab in for a service recently after noticing a change in engine noise following a long journey. The garage told me the car had no oil and replaced... -
Buying a reliable and economical car 30 Jun 2013 (Ask HJ)
I am retiring in a few weeks and want to change my car. I currently own a Volkswagen Passat diesel, but want something completely different after a run... -
Large load during the running-in period 18 Dec 2012 (Ask HJ)
Finally I got my new Audi Q7 last month (with 19-inch wheels, thank you for your suggestion). It has about 800km on the clock, and still in the running-in... -
Should I buy a Ford Fusion 1.4 TDCI 18 May 2012 (Ask HJ)
The fuel economy, low cost tax and relative cheapness of the ford fusion 1.4 diesel has my interest. I could afford an early one at nearly ten years old...
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