Mercedes-Benz A Class A220 CDI.
What to Check Before Buying.
The Mercedes-Benz A Class A220 CDI is an excellent choice for UK buyers seeking a premium compact hatchback with strong motorway economy and decent performance. This 2.1-litre diesel variant delivers around 170bhp, making it ideal for company car drivers and high-mileage commuters who want a blend of refinement and efficiency, typically achieving 60-65mpg in real-world driving. The A220 CDI offers noticeably better acceleration than lower-powered diesel variants, though the engine can feel slightly coarse compared to newer Mercedes units. When buying used, always check the service history thoroughly as these engines require regular oil changes to prevent turbocharger and injector issues. Inspect the dual-clutch automatic gearbox (7G-DCT) carefully for smooth shifts, as some examples have experienced mechatronic unit faults that prove expensive to repair. Also verify the DPF regeneration system is working correctly, particularly on cars used predominantly for short urban journeys. Check for software updates at Mercedes dealerships, as these can resolve minor niggles. Overall, a well-maintained A220 CDI represents a smart used buy for discerning drivers prioritising running costs.
The average used car has 3+ known model faults the seller won't mention.