2014 Mercedes-Benz E 2.1L Diesel · LR64 XYD

A front suspension problem sits at the centre of this Mercedes E-Class's recent MOT history, with the offside front lower suspension arm ball joint flagged as excessively worn on both the January 2025 failure and the January 2026 failure, the latter recorded just a day before a clean pass was issued. This recurrence points to a persistent wear pattern rather than a one-off deterioration, and because both lower arms failed on opposite sides within twelve months, the nearside joint also being condemned as excessively worn at the 2025 test, the underlying issue is likely geometric wear across the front axle rather than a single isolated component. The 2026 pass is therefore reassuring on the day but should be read alongside the fact that the car was failed for the same defect cluster only the day before, meaning rectification work was carried out immediately prior to the retest. An advisory for a nearside front-to-rear brake pipe showing early corrosion was also carried forward across both 2025 entries, suggesting an incipient brake-line corrosion issue that has not yet been addressed. With 81,241 miles recorded on a twelve-year-old vehicle, the average annual accumulation comes out at roughly 6,770 miles, which is broadly typical for a car of this age rather than notably high or low. There are no extended gaps in the testing record beyond the normal annual cadence and no sudden mileage jumps, indicating steady usage rather than prolonged storage or inconsistent driving patterns. This consistent level of use is mechanically significant because the front suspension and brake components that have attracted attention are load-bearing parts that wear progressively with mileage rather than simply with time, so the current odometer reading represents a realistic level of component fatigue for a Mercedes of this vintage. For a prospective buyer, the priority on inspection is the front suspension geometry. Both lower arm ball joints have now been flagged, so it is worth asking exactly which arms and bushes were replaced between the January 2026 failure and the subsequent pass, and whether the work was carried out with genuine or pattern parts. On a test drive, listen for clonking or knocking from the front end over speed humps and uneven surfaces, particularly when steering is applied at low speed, and feel for any vagueness or imprecise turn-in through the steering wheel that could indicate worn bushes that were not replaced alongside the ball joints. Pay particular attention to tyre wear across both front wheels, because the 2025 advisory noted offside rear inner-edge wear and any uneven or feathering on the fronts now could indicate that the replacement arms have not been properly set up or that related bushes remain worn. The brake pipe advisory deserves equal attention even though it has not yet escalated to a failure. With nearside front-to-rear pipework showing surface corrosion and grease contamination, a thorough undertray-removed inspection is warranted to assess the full length of the pipe for pitting or scaling, particularly along the chassis rails and anywhere the line passes near the exhaust or wheel arches. On the road, check for any sponginess or excessive travel in the brake pedal, and listen for scraping or grinding that could indicate a seized caliper, a common secondary issue on higher-mileage European saloons. Finally, the persistent offside rear position lamp minor defect across two consecutive tests suggests either a recurring bulb or connector fault that may resurface, so confirming that all rear lighting functions correctly with the ignition on and indicators activated is a worthwhile final check before purchase.