Used Car Expert Fault Guides tell you the common Mercedes C Class faults and wear items that can become problems and big bills for their owner.
Independent research indicated that using our fault guides to check a car before you buy it can save you an average of £300 in surprise bills and hidden problems.
That's because our Mercedes C Class fault guides are written so that anyone can understand them – even if you know nothing about cars and have no tools. For every common fault, we tell you what to look for, what it means and what it costs.
Select your Mercedes C Class fault guide:
Mercedes C-Class (1993 - 2007) Fault Guide
Mercedes C-Class (2007 - Present) Fault Guide
Mercedes C-Class (1993 - 2007) Fault Guide

We know of 17 MERCEDES C-Class (1993 - 2007) faults which our fault check guide makes it easy for you to spot and avoid.
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7 engine faults
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2 suspension wear items or faults
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3 interior problems
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1 bodywork issues
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4 recalls
Here's an example fault on the MERCEDES C-Class (1993 - 2007)
What to look for:
Look at the front corners of the engine for oil dripping and running down the engine sides.
What it means:
Oil running down the outside edge of the engine indicates that the head gasket needs replacing.
What to do
Negotiate a £400 discount or have the repair completed.
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Mercedes C-Class (2007 - Present) Fault Guide
We know of 24 MERCEDES C-Class (2007 - Present) faults which our fault check guide makes it easy for you to spot and avoid.
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4 engine faults
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3 suspension wear items or faults
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4 interior problems
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6 bodywork issues
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7 recalls
Here's an example fault on the MERCEDES C-Class (2007 - Present)
What to look for:
Check the service history and mileage/ask the vendor to see if the big 50,000 mile service is either due or has been carried out recently.
What it means:
If this service is due then it can cost up to £800.00 at a main dealer.
What to do
If you find the car is due its 50,000 mile service then try to reduce the price of the vehicle by £800.00.
Register to have full access to the MERCEDES C-Class (2007 - Present) fault guide.
Registered users also get access to our regional price guides, cars for sale email alerts, and many other benefits to help you buy a safe, reliable used car at a great price.