Credov's researched list of the 2 faults the Mercedes-Benz CLA180 CDI is known for (2012–2020), 2 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.
What to look for: With the engine idling, listen near the injectors for a chuffing tick and smell for exhaust fumes.
Why it matters: Left alone an injector can seize in the head or its return line can leak badly, turning a cheap washer job into a far more expensive injector replacement.
What to look for: Check the dash for a DPF warning and pull the dipstick for oil sitting above the max mark.
Why it matters: A blocked filter cuts power and can trigger limp mode, and the diluted oil that causes it also thins lubrication for the turbo and bearings.
Got a question about a Mercedes-Benz CLA180 CDI? Ask Credov: a noise, a warning light, a part or how to fix it.
On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.
Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.