2013 Mercedes-Benz E 2.1L Diesel · GY13 PZO

A persistent pattern of front brake disc wear sits at the centre of this E-Class's roadworthiness record. The most recent test on 1 September 2026 was a pass, but it again carried advisories for pitting and scoring on both nearside and offside front discs, and this same defect has been flagged at every annual examination since at least 2023, with the 2025 test additionally recording inner-face disc wear and rear pads nearing the end of their useful life. Two failures sit alongside this wear pattern: a 2024 fail for an inoperative or malfunctioning engine management indicator lamp, which points to an active or stored powertrain fault that should have been investigated at the time, and a 2022 fail for an offside front headlamp aim that was set too high. The vehicle passed on both occasions once the relevant issues were addressed, and the 2024 pass shows the engine lamp warning was cleared, but the repeated brake disc advisories across consecutive years suggest the front braking hardware is approaching the point at which component renewal, rather than continued monitoring, will be required. The recorded mileage of 77,744 miles across thirteen years equates to roughly 5,980 miles annually, which is notably below the typical accumulation rate for a vehicle of this age and class. The MOT history covers every year from 2021 onwards without any testing gaps, indicating continuous use rather than a prolonged period off the road. This lower annual mileage reduces wear on major drivetrain components such as the engine, automatic transmission and exhaust system, but it does not eliminate age-related deterioration in items like rubber boots, bushes, gaskets and corrosion-prone underbody components. The 2024 minor defect for severely deteriorated CV joint boots on both rear drive shafts is consistent with ageing rubber rather than high-mileage mechanical fatigue, and similar age-related deterioration should be expected on other flexible components beneath the vehicle. Front brake discs that have been flagged for pitting and scoring at four consecutive tests are the primary mechanical concern, and on a test drive any vibration through the brake pedal under firm application, a steering wheel shimmy as the brakes are used from speed, or a tendency for the front end to pull to one side under braking would indicate the discs have worn beyond their serviceable limit and require replacement rather than just skimming. The rear brake pads noted as wearing thin in 2025 should be inspected for remaining material, and the discs at the rear should also be checked for wear or lipping given the recent attention paid to the front set. The 2024 failure for an inoperative engine management indicator lamp means the vehicle should be scanned for any stored diagnostic trouble codes; a reappearance of the warning light on the dashboard, rough idle, hesitation under acceleration, or elevated fuel consumption would suggest the underlying fault has returned. The 2022 headlamp aim issue is likely to have been resolved by a simple adjustment, but both headlamps should be checked against a flat surface to confirm the beam pattern sits below the horizontal cutoff line and does not dazzle oncoming traffic. Beyond the flagged components, the 2024 advisories for rear and front tyres worn close to the legal limit warrant close inspection of the current set for even wear across the tread, any feathering or scalloping that would point to alignment or suspension geometry faults, and adequate tread depth across the full width rather than just the central ribs. Given the recurring edge-wear advisories recorded across multiple years, a check of the suspension linkages, control arm bushes and anti-roll bar drop links is worthwhile, as worn bushes on a Mercedes of this vintage commonly produce clonks or knocks over uneven surfaces, vague steering response, or uneven inner-edge tyre wear. The cracked nearside mirror noted in 2025 is a minor cosmetic issue but worth confirming for visibility and any MOT-related concerns if the crack has spread across the reflective surface. Finally, the underside should be examined with care for corrosion on subframe mounting points, brake lines and suspension components, as thirteen years of British road use, even at modest mileage, allows surface oxidation to develop on ferrous components and a thorough check on a ramp remains advisable before purchase.