2011 Mercedes-Benz CLS 3.0L Diesel · EN11 BVL

The 2011 Mercedes-Benz CLS holds a valid MOT issued on 25 February 2026 at 92,504 miles, but the maintenance picture is mixed. The car failed its previous test on 24 February 2026 at 92,503 miles with a fractured offside rear coil spring, a non-functioning offside repeater, a broken nearside front ABS and brake hose retainer, and a corroded offside front brake pipe. Passing the very next day suggests the coil spring and hose retainer were replaced, yet the tester still flagged the same corroded brake pipe and a nail in the nearside rear tyre. This pattern points to reactive repairs rather than a thorough inspection, and the underlying corrosion concern remains unresolved. The mileage progression is steady and typical for a fifteen-year-old car, rising from 76,299 miles in February 2023 to 92,504 miles by February 2026, averaging roughly 5,400 miles per year. There are no alarming gaps or sudden jumps in the record. The annual tests are consistently timed around February, which indicates a regular MOT cycle. The clean pass in February 2024 at 81,598 miles shows the car can meet the standard when properly maintained, but the cluster of defects in early 2026 suggests attention has slipped recently. The fractured coil spring is the most serious finding in the record. A broken spring affects handling, ride height, and load distribution, and it places extra stress on the opposite-side spring and dampers. Buyers should have the full suspension inspected for cracks, sag, and worn bushes, particularly at the rear. The recurring advisory on worn rear brake discs in 2025, combined with the corroded front brake pipe flagged in both 2026 tests, raises a question about the condition of the entire braking system. The corroded pipe was noted as covered in grease or other material, which can mask the extent of metal loss. A full brake system inspection, including flexible hoses, hard lines, and caliper operation, is essential before purchase. The repeated tyre damage and tread wear advisories suggest the car may be driven on poorly maintained roads or that alignment and tyre pressures are not being monitored regularly. The broken ABS and brake hose retainer from the 2026 failure indicates a securing point was left insecure, which could allow the hose to chafe or foul the wheel. A buyer should check all brake hose retaining clips, ABS sensor wiring, and tyre sidewalls for embedded objects. The offside repeater fault is minor but confirms that even basic electrical items are being neglected. Overall, the car appears mechanically sound between major failures, but the recent cluster of defects signals a lack of proactive servicing that a buyer must budget to correct.