2017 Mercedes-Benz CLA 2.1L Diesel · MW17 AAZ

The most recent MOT test conducted on 02 June 2026 resulted in a pass, although the presence of several advisories indicates a trend of increasing wear in the suspension and tyre components. While the vehicle has maintained a consistent pass record, the recurring nature of steering and suspension-related issues, such as ball joint play and tyre edge wear, suggests that the vehicle's maintenance is reactive rather than preventative. The trend is currently moving towards more frequent advisories, which typically precedes more significant mechanical failures if not addressed. With 52,564 miles recorded over approximately nine years, the vehicle has averaged roughly 5,840 miles per annum. This is considered low mileage for a vehicle of this age, which can be a double-edged sword. While the engine and transmission may have lower mechanical wear, the low usage pattern increases the risk of age-related degradation. Components like rubber bushes, seals, and tyres can perish from standing still, and fluids may undergo chemical degradation due to lack of thermal cycling. The low mileage context necessitates a thorough inspection of all perishable items that are sensitive to time rather than just distance. During your test drive, pay close attention to the steering and front suspension. The history of ball joint play and track rod end issues, combined with the current advisory for offside front suspension arm ball joint play, means you should listen for any knocking, clunking, or creaking sounds when traversing bumps or turning the wheel. Any pulling to one side or a wandering sensation through the steering wheel could indicate that the wheel alignment or tracking is incorrect, which is supported by the repeated advisories for inner tyre wear. Furthermore, the advisory regarding worn or scored brake discs means you should test for any shuddering or vibration through the brake pedal during deceleration. Given the low annual mileage and the previous advisory regarding tyre perishing, perform a detailed physical inspection of all tyres. Look specifically for sidewall cracking or perishing, particularly on the nearside rear, as age-related rubber degradation can occur even with deep tread. Ensure the nearside rear jacking point block is replaced to avoid structural damage during future lifting. Finally, because the vehicle has been used sparingly, verify that the service history includes time-based intervals for brake fluid and coolant changes. Check the 12V battery for signs of weakness and inspect the engine bay for any signs of fluid seepage that may have developed from long periods of inactivity.