2015 Mercedes-Benz E220 AMG Night ED Bluetec Auto 2.1L Diesel · GL63 MOR

A clean 2025-10-31 pass, following closely on from a failure earlier that same year, gives the outward appearance of a healthy late-stage E-Class, but the absolute absence of any advisories or defect notes across the entire visible MOT record is unusually sterile for a diesel Mercedes-Benz now into its eleventh year and covering well into six-figure mileage. With a 2022 fail also on file alongside a pass only weeks later, the pattern suggests the vehicle has historically been rectified promptly to clear the test rather than carrying forward known wear items for the next examiner to monitor. Mechanically, this means prospective buyers cannot rely on the MOT trail alone to forecast the next round of replacements; the documentation effectively shows a binary pass or fail outcome with no flagged deterioration curve for components such as brake discs, suspension bushes, corrosion, or drivetrain oil leaks. At 125,890 miles over an eleven-year life, the average accumulation works out at roughly 11,445 miles per year, which sits squarely within the expected band for a diesel executive saloon of this vintage, particularly one with an AMG Night Edition trim likely to have covered a healthy mix of motorway and commuter mileage. The four recorded tests across the database indicate that annual MOT compliance has not been continuous, with several years passing between documented examinations, a common occurrence for vehicles retained off the public road during ownership transitions or kept on SORN. Mechanically, this rate of use points to moderate but steady wear on the typical diesel service items including turbocharger vanes, dual-mass flywheel, EGR cooler, and injector balance, while the undercarriage and braking components will have seen continuous working cycles rather than the prolonged static corrosion associated with very low annual mileage. Given the AMG-line suspension fitted to this variant, a careful test drive should focus on the dynamic behaviour of the front axle, specifically listening for clonking or creaking over speed humps and rough tarmac which would indicate worn upper and lower control arm bushes, anti-roll bar drop links, or the front coil spring carriers, all known wear points on the W212 chassis at this mileage band. The steering should be checked for any vagueness or shudder through the centre on a motorway stretch, as worn tie rod ends and front subframe mountings can present as a wandering front end, while a tight figure-of-eight manoeuvre will quickly reveal any binding in the front calipers or uneven brake response that could point to seized slider mechanisms. On start-up from cold, listen for any diesel knock or timing chain rattle from the front of the OM651 engine, and watch the exhaust for excessive smoke under load, as both EGR valve carbon build-up and turbo actuator wear are recurring themes on high-mileage Bluetec units. Before committing to purchase, a thorough pre-purchase inspection with the vehicle on a lift is strongly advised, given that the MOT history provides no line of sight into the condition of the underside structure, brake pipe corrosion, or subframe mounting points, all areas that an examiner would routinely flag as advisories on a working vehicle. Particular attention should be paid to the rear suspension carrier bearings, which are known to fail on this model and produce a droning noise that varies with vehicle speed, and to the condition of the flexible brake hoses, which on a diesel of this age and mileage can begin to perish internally and produce a spongy pedal without visible external swelling. Finally, request evidence of recent timing chain, dual-mass flywheel, and automatic transmission servicing, as the gearbox oil and filter change intervals are frequently overlooked on these vehicles, and any hesitation, flare, or harsh engagement when selecting drive or reverse would suggest the seven-speed unit is approaching the end of its service life.