2015 Mercedes-Benz E 2.1L Diesel · MM65 VLR

A clean five-test MOT sequence, with no advisories or failures recorded at any point since December 2023, presents a reassuring picture of a high-mileage executive saloon. Each annual test, including the most recent pass dated 13 December 2025, has returned an entirely defect-free result, indicating that the braking system, suspension linkages, exhaust integrity, tyres, lighting, and structural underbody areas were all considered serviceable at the time of inspection. The absence of recurring advisories across two and a half years of testing is notable, particularly given the vehicle's age and accumulated mileage, and suggests either proactive component replacement between tests or components that have remained within tolerance despite sustained use. That said, an MOT pass only confirms roadworthiness on the day of test and does not guarantee the condition of wear-rate items that may be approaching the advisory threshold. With 375,794 miles recorded on an 11-year-old vehicle, the annual mileage averages out at approximately 34,163 miles, which is well above the typical accumulation rate for a private-used executive car and points toward sustained high-mileage operation, possibly fleet, chauffeur, or motorway commuter use. The MOT tests are spaced at remarkably regular six-month intervals, which is consistent with a vehicle in continuous service rather than one left standing for extended periods. This consistency is mechanically significant: high annual mileage generally accelerates wear on friction materials, suspension bushes, engine and gearbox mounts, drivetrain lubricants, and cooling system components, yet the test record shows none of these areas have crossed into advisory or failure territory. The cumulative effect of 34,000-plus miles per year, however, means that even components not yet flagged may be operating near the end of their functional life, particularly those with mileage-sensitive service intervals. Because the MOT history does not flag any specific components, a prospective buyer should focus their inspection on the areas most likely to wear on a high-mileage Mercedes-Benz E-Class of this generation. On a test drive, listen for any knocking or clonking from the front suspension over uneven surfaces, particularly from the lower control arms, anti-roll bar bushes, and thrust arms, which are known wear items on this platform and can deteriorate without yet triggering an MOT advisory. Apply the brakes firmly from speed to check for pedal judder or vibration, which would indicate warped front or rear brake discs, and listen for any grinding that might suggest worn pads approaching the caliper. Steering should feel precise and self-centring without vibration through the wheel, and any vagueness, clonking on lock, or uneven tyre wear would warrant closer examination of the track rod ends and wishbone bushes. The engine and drivetrain also merit careful attention given the mileage. Listen for excessive diesel knock on cold start if the vehicle is diesel-powered, and check for any bluish smoke from the exhaust which could indicate oil burn through worn turbo or piston rings. Inspect the underside for any signs of oil misting or seepage from the sump, valve cover, or rear main seal, and check the coolant reservoir for any signs of emulsion or pressure residue around the cap. On automatic variants, ensure gear changes are smooth and timely without slipping or flare between ratios, and confirm there is no fluid seepage at the gearbox sump or cooler lines. Finally, examine the exhaust system for any corrosion at the mounting brackets and joints, as replacement costs on these vehicles can be substantial, and verify that all electronic systems, including the infotainment, parking sensors, and air conditioning, are functioning correctly, as electrical gremlins are common on E-Class models approaching the end of their first decade of life.