Used car guide

2017 Mercedes-Benz CLA: petrol or diesel?

Petrol, diesel and hybrid versions go wrong in different ways, so each has its own figures from the MOTs these cars had during 2023–2025. Pick the one you’re looking at: the fuel is on the logbook and in the car’s MOT history.

Petrol 80% pass first time (all 2017 cars: 80%) Stands out: wheels 2.3×, engine warning light 2× 9,489 MOTsSee the petrol guide › Diesel 78% pass first time (all 2017 cars: 80%) Stands out: wheels 3.3×, engine warning light 2.4×, coil springs 1.6× 15,101 MOTsSee the diesel guide ›

Hybrid versions had too few MOTs for figures of their own, or weren’t sold.

Known faults on every 2017 Mercedes-Benz CLA

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

Looking at a Mercedes-Benz CLA?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the Mercedes-Benz CLA compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023718Tyres 13%
202211,836Tyres 28%
202119,309Tyres 30%
202022,369Tyres 31%
201924,621Tyres 31%
201824,892Tyres 33%
201622,940Tyres 33%
201520,524Tyres 33%
201412,973Tyres 33%
20136,330Tyres 34%