2010 Mercedes-Benz CLS 3.0L Diesel · RE10 WWP

The 2010 Mercedes-Benz CLS passed its most recent MOT on 20 February 2024 at 190,920 miles, but the test exposed a worsening maintenance trend. The tester flagged play in the steering rack inner joint, corroded front and rear brake pipes on the offside, and a corroded nearside rear coil spring. These faults build on a pattern of corrosion and steering defects seen across earlier tests, indicating the vehicle's structural and mechanical condition is degrading rather than stabilising. Recorded mileage rose from 171,060 in February 2022 to 181,855 in February 2023, then to 190,920 in February 2024, an average of roughly 9,900 miles per year over that span and consistent with the lifetime mean of about 11,900. No large gaps or sudden accumulation appear in the data. The 2022 and 2023 entries show failed tests followed by quick retests at near-identical mileages, which suggests the previous owner addressed defects promptly once flagged rather than deferring critical repairs. A buyer should physically inspect the offside brake pipes and the nearside rear coil spring for active corrosion, as both recurred from 2023 into 2024 and the grease noted by testers may be masking further pitting. The steering rack inner joint play is a new advisory at the last test and warrants a road check for vagueness or roughness, given the 2022 failure for excessively rough steering. Verify the windscreen damage from February 2024 has not spread into the driver's primary view. Front tyres wore on the inner edge and close to the legal limit at the 2022 failure, so examine current front tyres for uneven wear that would point to worn suspension bushes or incorrect alignment. Headlamp aim failed twice in 2022 and 2023 on opposite faults; confirm both units now hold correct alignment. The clean 2022 pass between the failed attempts shows the car can meet standards when attended to, but the rising corrosion advisories mean ongoing upkeep of brake lines and spring integrity is essential.