MERCEDES CLS2007 · 3.0L DIESEL

The 2007 Mercedes CLS presents a mixed maintenance picture. The most recent MOT on 12 December 2025 at 78,843 miles passed, but only after an initial failure on the same day flagged a nearside rear tyre worn below the 1.6mm legal limit and front brake discs worn, pitted, or scored. The tester also noted both front and rear tyres worn close to the legal limit or on the edge during the pass. This suggests the owner addressed the immediate failure but left borderline tyre wear unresolved. The trend is not clearly improving. Brake disc wear and recurring tyre edge wear point to ongoing consumable neglect rather than a one-off lapse. The mileage pattern is unusual and warrants scrutiny. Between the April 2023 test at 46,290 miles and the November 2024 test at 65,371 miles, the car covered 19,081 miles in roughly 19 months, averaging about 1,000 miles per month. Yet from November 2024 to December 2025, the odometer moved only from 65,371 to 78,843 miles, a gain of 13,472 miles over 13 months. That is a sharp drop in usage after a period of heavier driving. The annualised average of roughly 4,150 miles over 19 years is low for the vehicle class, but the uneven spread raises the possibility of long stationary periods, which can accelerate brake corrosion, tyre flat-spotting, and fluid degradation. Buyers should inspect the braking system carefully. The December 2025 advisory on front brake discs described pitting and scoring, conditions that often follow prolonged standing or aggressive use. The November 2024 test flagged corroded rear brake pipes covered in grease or other material, a sign that protective coatings may have been compromised. Check the full length of the brake lines for surface rust, especially at clips and along the underside. Suspension components also demand attention. The April 2023 failure identified a worn nearside front lower suspension arm ball joint and excessive play in the offside front outer track rod end, both critical steering and suspension joints. Although the car passed in 2024 and 2025 without related advisories, wear in these areas can be intermittent. Have a workshop check for play in all front suspension joints and track rod ends on a raised lift. Tyre wear is a recurring theme. The record shows nearside and offside rear tyres repeatedly worn to or below legal limits, and the December 2025 pass still carried advisories on multiple tyres. Edge wear on the fronts suggests possible tracking misalignment or low tyre pressures over time. Inspect the inner and outer sidewalls for uneven wear patterns and confirm the tracking is within specification. Given the low annual mileage, also check for perished sidewalls and date codes, as a 2007 vehicle may be running tyres that are old even if tread depth appears adequate.