DPF clogging
Often reportedIf the vehicle is mostly used in city or short-distance driving, the DPF tends to clog, leading to incomplete regenerations, warning lights, and limp mode.
Exhaust Emissions
The most frequently mentioned issue when buying a used 2018 Mercedes-Benz CLA 180d (117 / facelift): DPF clogging. Additionally, EGR valve carbon buildup is also commonly reported.
Engine varies by trim; verify the engine code on the listing.
Listed from most frequently reported, each with its source.
If the vehicle is mostly used in city or short-distance driving, the DPF tends to clog, leading to incomplete regenerations, warning lights, and limp mode.
Exhaust Emissions
The EGR valve in the 1.5 engine family is prone to carbon buildup, especially with city driving and few high-rev runs, which can lead to clogging or failure.
Exhaust Emissions
In some 1.5 versions, injectors can fail even at low mileage, causing power loss, rough idle, black smoke, and increased fuel consumption.
Fuel System
The turbocharger may have a shortened lifespan around 100-150,000 km due to poor maintenance or heavy city use; some units also report higher than normal oil consumption.
Turbo
Same trim, different year
We only publish claims we can verify. Cards come from Difetti fault records matched to this vehicle on brand, fuel, engine and generation.