2012 Mercedes-Benz E 1.8L Petrol · L21 RAG

The most recent MOT test on 2026-09-01 reveals a clean pass with two minor defects on the front and rear anti-roll bar ball joint dust covers, both classified as severely deteriorated under 5.3.4(b)(i). While this indicates a recurring issue with suspension components, the absence of further failures or worsening conditions since 2023 suggests a stable maintenance trend—though the persistent advisory on parking brake efficiency and brake pad wear highlights a systemic concern that has not yet escalated to a critical level. The prior failure in 2020, where the near-side rear brakes were imbalanced and the pad thickness fell below the legal minimum, underscores the importance of addressing the braking system promptly, as this could lead to uneven wear, reduced stopping performance, or even failure under heavy loads. The vehicle’s recorded mileage of 91,070 miles at 14 years old represents a moderate annual usage rate of approximately 6,505 miles per year, which is consistent with typical light-to-moderate use for its age. Lower mileage might suggest periods of inactivity or less frequent operation, potentially contributing to issues like standing corrosion on brake components or fluid degradation from stagnation. Conversely, higher mileage would accelerate wear on consumables such as brake pads, suspension bushes, and tyres, but the current figures do not indicate extreme overuse. The absence of significant mileage spikes in recent years suggests that while wear is inevitable, the vehicle has not been subjected to particularly harsh conditions, though this does not eliminate the need for proactive checks. Given the recurring advisories on brake system efficiency and the deteriorated anti-roll bar ball joint dust covers, the prospective buyer should prioritise a thorough inspection of the braking assembly. Look for signs of uneven brake pad wear, scoring or pitting on discs, and any binding or excessive play in the parking brake mechanism, which may indicate a worn or misaligned cable or mechanical linkage. During a test drive, listen for unusual grinding noises when braking, particularly on the rear axle where imbalance was previously noted, and check for a firm, even pedal response without excessive vibration or shuddering. The anti-roll bar ball joints should be tested for excessive clunking or rattling when the suspension is stressed, as the deteriorated dust covers may have allowed contaminants to enter the joints, leading to accelerated wear. Immediate attention to these issues is advisable, as the parking brake and brake system advisories suggest a need for adjustment or repair to maintain roadworthiness and safety. For broader checks, examine the tyres for sidewall cracking or perishing, which can occur even at moderate mileage over time, especially in older vehicles. Inspect the suspension for signs of corrosion or binding, particularly around the strut mounts and control arms, and verify that the coil springs and shock absorbers are free of leaks or excessive sagging. The oil leak advisory from 2022 should prompt a check of the engine oil level and condition, as well as the valve cover gasket and oil pan for leaks, with a recommendation to top up or replace oil if necessary. Additionally, given the vehicle’s age, consider a visual inspection of the exhaust system for signs of rust or structural integrity, as well as a check of the emissions-related components if the vehicle is to be used on routes with stringent emissions standards. Finally, a 12V battery health test and a review of the service history for fluid replacements—particularly brake fluid, which should be replaced every 2–3 years regardless of mileage—are essential to ensure long-term reliability.