Mercedes-Benz A Class A200 CDI.
What to Check Before Buying.
The Mercedes-Benz A Class A200 CDI is an excellent choice for UK buyers seeking premium build quality with strong fuel economy, typically achieving 60-70 mpg in real-world driving. This diesel variant suits commuters and small families who cover higher annual mileages and want a refined cabin with the prestige of the three-pointed star. The 2.1-litre engine delivers adequate performance with around 136 bhp, though some owners report it can feel breathless when fully loaded on motorway inclines. When inspecting a used A200 CDI, check the diesel particulate filter (DPF) history, as regeneration issues are common on cars used mainly for short urban journeys. Listen carefully for any turbo whistle or excessive engine noise when cold, and examine service records to confirm oil changes have been completed on schedule, as the OM651 engine can suffer premature wear if neglected. Also inspect the dual-clutch automatic gearbox for smooth shifts, particularly when changing from first to second gear, as mechatronic unit faults can be expensive to repair.
The average used car has 3+ known model faults the seller won't mention.