2015 Mercedes-Benz ML 2.1L Diesel · EK02 AAA

The most recent DVSA MOT test conducted on 8 May 2026 resulted in a pass for this 2015 Mercedes-Benz ML, though two advisories were issued concerning brake disc wear on both the nearside and offside front discs, each noted as worn but not excessively. Across the five recorded tests spanning 2022 to 2026, the vehicle has consistently passed without any prior advisories, meaning the brake disc observations represent the first recorded concerns in the inspection history. The absence of failures, dangerous defects, or recurring advisories over a four-year MOT window suggests a broadly stable maintenance trend, although the sudden emergence of brake-related advisories on the latest test indicates that consumable wear items are beginning to reach a serviceable threshold and warrant close attention. With 156,329 miles accumulated over approximately 11 years, this ML averages around 14,212 miles per annum, which is notably high for a luxury SUV of this vintage and points to sustained, regular usage rather than long periods of standing. This level of annual mileage is generally beneficial for mechanical components that suffer from disuse, such as brakes, drivetrain seals, and the diesel particulate filter on the common M-Class variants, as it keeps lubricants circulated and surfaces lubricated. However, the higher-than-average usage accelerates wear on suspension components, engine and gearbox mountings, turbocharger bearings, and clutch or torque converter elements. Buyers should anticipate that items such as coil springs, control arm bushes, anti-roll bar links, and wheel bearings will have experienced substantial fatigue and may be approaching replacement intervals. Given the high mileage and the recent brake disc advisories, a prospective buyer should prioritise a thorough inspection of the braking system, including measurement of both front discs with a micrometer to determine remaining material above the minimum thickness specification, and a check of the corresponding pad wear. On a test drive, listen for any brake shudder or vibration through the steering wheel under firm deceleration, which would indicate disc runout or uneven wear, and feel for any pulling to one side that could suggest a binding caliper. With an annual mileage of this magnitude, the front discs wearing simultaneously on both sides is a typical and expected pattern rather than a fault, but they should be monitored closely at the next service interval. Beyond the braking system, the age and mileage profile of this ML demands attention to several time-sensitive items that may not be evident from MOT data alone. Inspect the tyres closely for sidewall perishing and cracking, as even tyres with adequate tread can degrade significantly after seven or more years in service, and verify that all four tyres are of matching make and type to suit the four-wheel-drive system. Check the 12V battery health and age, as batteries typically require replacement every five to six years, particularly in vehicles with high electrical load from auxiliary systems. Examine the underside and suspension components for any fluid seepage from the engine oil sump, gearbox, transfer box, or rear differential seals, all of which are known wear points on high-mileage M-Class models. Finally, verify the service history documentation to confirm that vital time-based maintenance has been carried out, including diesel particulate filter regeneration cycles, timing chain or belt replacement intervals depending on engine variant, brake fluid renewal every two years, coolant replacement, and automatic transmission fluid and filter changes, as these calendar-sensitive services are critical on a vehicle that has covered substantial mileage.