Mercedes-Benz SLK (2004 – 2011) Review

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Mercedes-Benz SLK (2004 – 2011) At A Glance

Georgeous jewel like looks reminiscent of a miniature McLaren SLR. Electric folding hard top. A much desired and aspired to car.

Apalling ride on 19-inch rear alloys. Not as together to drive as a Nissan 350Z or Porsche Boxster.

Insurance Groups are between 40–47
On average it achieves 94% of the official MPG figure

In its day, the SLK was probably the most exquisite piece of street jewellery you can buy. It's a ‘must have' ‘want one' kind of car on its looks alone. A bit girly, if you had to get critical, but Clarkson smoked an SLK55 so it must be okay for blokes too.

It has all the bits of the original SLK, most importantly the electric folding hardtop. But it looks vastly better. A bit like a shrunken Mercedes McClaren SLR with better proportions. Come to think of it, personal preferences aside, there probably isn't a better-looking car than the new SLK anywhere on the planet.

Mercedes Benz SLK280 2006 Road Test

Mercedes Benz SLK350 facelift 2008 Road Test

Looking for a Mercedes-Benz SLK (2004 - 2011)?
Register your interest for later or request to be contacted by a dealer to talk through your options now.

Real MPG average for a Mercedes-Benz SLK (2004 – 2011)

Real MPG was created following thousands of readers telling us that their cars could not match the official figures.

Real MPG gives real world data from drivers like you to show how much fuel a vehicle really uses.

Average performance


Real MPG

16–38 mpg

MPGs submitted


Diesel or petrol? If you're unsure whether to go for a petrol or diesel (or even an electric model if it's available), then you need our Petrol or Diesel? calculator. It does the maths on petrols, diesels and electric cars to show which is best suited to you.


I'm looking at buying a 10 year old Mercedes-Benz SLK - how can I ensure things like brakes and fluids are okay?
I'm looking at buying a 10 year old Mercedes-Benz SLK with 22,000 on the clock. However, it has only been serviced at 9000 miles (2014) and just recently by the car dealer. What do I need to have done to ensure brakes, fluids, belts etc are up to scratch?
You'll want to treat it as a big service. Engine oil and filter, fuel filter, brake fluid, dust filter, and coolant. But it will be the visual checks - condition of brake pads and discs, making sure there aren't any leaks, looking for chafe marks, checking for wear on the rubber boots etc.
Answered by Keith Moody
What's the cheapest way to insure two cars?
I have a 2005 Mercedes-Benz SLK 350 7G tronic with 68000 miles and have an Aviva multi car policy with my Kia Sportage. Now we have come up for fully comprehensive renewal and for both cars they want £497 with the discount for multi vehicle, but the separate costs are £270 for the SLK and £291 for the Kia. I have full NCB on both cars, max 3K yearly mileage on the SLK and my wife as a named driver. We both have clean licences and are both 68 and in good health. Do you know of a specialist insurance company that would be cheaper for my SLK as it is an occasional car with low mileage of less than 3K per year, we both have clean licenses and have not had an accident since year dot.
What you need to do with your current insurer is alter the use on the Mercedes-Benz and ensure it does not have to and from a place of work on - if you are retired and do not work, take it off completely. At the quote you have been given, that is extremely cheap compared to what it would cost for each vehicle on their own. You would struggle to ensure the Mercedes for £497 on it 's own. Expect your premiums to raise massively next year, as it will for everyone. You could try
Answered by Tim Kelly
Are broken coil springs a known issue on Mercedes-Benz?
My car is a 2005 Mercedes-Benz SLK 350 7G-Tronic automatic. It has covered 68,000 miles and has been well looked after and serviced regularly. I've had it two years and, after about three months, I found my front offside coil spring broken and replaced it. I have since replaced all the shockers, front and rear. It went in for a service yesterday and it was found that the rear offside coil spring had broken, so I had that replaced. Now I am riding on 225/40 R18 92W XL on the front and 245/35Z R18 92Y XL on the rear. Why am I having spring breakage problems? Is it a fault with the car or am I just unlucky?
They are quite common on Mercedes-Benz. But the problem will be compounded by the ridiculous wheels and tyres. These cars are far better on more sensible 17-inch wheels with deeper profile tyres all round.
Answered by Honest John
AA refused to tow my untaxed car
I bought a secondhand Mercedes-Benz SLK with a full warranty from a dealer in Bolton. I have not changed my car for some years and I didn't know about the new road tax procedures. I am in my 60s and I have nine years no claimed bonus I thought I had to tax the car when the log book came back to me from DVLA. A few days after I bought the car it wouldn't start and was 20 miles away from my home. I called the AA and a patrolman arrived. He couldn't find out what was wrong (the petrol pump was later replaced under warranty). I asked the AA man to tow the car to the dealer, but he refused as it was not taxed. I explained that I had just bought it and it isn't illegal to tow an untaxed car for repair. He refused and drove off leaving me stranded. I had to find a tow-service and pay the bill myself. I have complained to the AA but they say that this is their policy. The 4th Emergency Service, I don't think so, thank God it wasn't raining, in the dark on a motorway. Do you agree?
I agree with the AA patrolman who had to protect himself against becoming complicit in your illegal act. You had to insure and tax the car before you drove it off the vendor's property. It's an annoying new system. But ignorance does not get you off an offence. Diagnostics can only show low fuel pressure. Logic might pinpoint the fuel tank sender pump as the culprit but it would be a trial and error process.
Answered by Honest John

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