2005 Mercedes-Benz E 2.7L Diesel · L44 RAO

The most recent MOT test on 30 October 2025 resulted in a pass, but the accompanying advisories are extensive and reflect a vehicle with significant age-related wear concerns that any prospective buyer should weigh carefully. Looking across the recorded history, the pattern is one of gradual deterioration rather than improvement: the 2017 and 2018 tests passed cleanly with only minor advisories, but from 2019 onwards the test record shows recurring suspension and exhaust issues, a failure in August 2024 related to an exhaust leak, ball joint dust cover deterioration, and a track rod end defect, followed by another failure in October 2025 attributed to a leaking front suspension unit. The progression from minor advisories to major defects over successive tests, particularly around the front suspension components, suggests that deferred maintenance is catching up with the vehicle and that further rectification work in these areas is likely to be required in the near term. The recorded mileage of 90,520 against a vehicle age of approximately 21 years equates to an annual average of around 4,310 miles, which is well below typical usage for a car of this vintage. This low mileage figure can indicate either light genuine use or, more likely given the gaps between tests and the nature of the defects recorded, considerable periods of standing or very irregular use. Low annual mileage reduces wear on high-mileage components such as the engine internals, clutch and gearbox, but it simultaneously accelerates calendar-related degradation of rubber seals, brake system components, suspension bushes, fluid condition, and bodywork corrosion. The recurring advisories concerning corroded brake pipes, perished ball joint dust covers, and corroded shock absorbers are very characteristic of a vehicle that has spent significant time stationary rather than being driven regularly. For a prospective buyer, the most pressing area for inspection is the braking and suspension system. The advisories on both front brake pipes showing corrosion under a grease coating warrant close physical examination, as corrosion in this area can progress to a structural failure of the pipe and represents a significant safety concern that would lead to a future test failure. The recent advisories covering all four shock absorbers showing corrosion, combined with the major defect for a leaking front suspension unit, suggest the dampers are nearing the end of their service life and will require replacement; on a test drive, listen for clonking or knocking noises from the suspension over uneven surfaces and observe whether the vehicle continues to oscillate excessively after passing over bumps. The track rod end ball joint play, which has been recorded as an advisory on the most recent test, should be checked by rocking the front wheels with the car raised and feeling for movement or slack in the steering, and any vagueness or wandering from the steering on the road would indicate that renewal is imminent. The lower suspension arm ball joint dust covers, flagged repeatedly since 2019, allow contamination to enter the joints and accelerate wear, so these joints should be inspected for play or corrosion pitting at the tapered stud. Given the low mileage and age of the vehicle, additional checks beyond the MOT record are strongly advisable. Tyre sidewalls should be examined closely for cracking or perishing from age, as tyres older than around six years begin to deteriorate regardless of tread depth, and the production date should be verified via the DOT stamp. The 12 volt battery is likely due for replacement given the calendar age, and a load test or voltage check should be performed before purchase. Brake discs should be inspected for severe corrosion pitting or lipping, as prolonged standing causes surface rust that can lead to juddering under braking, and the offside rear caliper, previously noted as binding slightly, should be checked for free operation. All fluids including engine oil, coolant, brake fluid and automatic transmission fluid should be considered degraded by age and a precautionary service should be budgeted for. The exhaust system, having been flagged for leaks at both the centre pipe and extension connection across multiple tests, warrants a physical inspection from underneath for corrosion perforation. Finally, the long-standing advisory concerning a non-excessive oil leak from the rear differential should be visually confirmed by inspecting the underside for fresh seepage, and the rear differential oil level and condition checked, as neglect here can lead to costly differential damage in a Mercedes-Benz E-Class of this era.