2011 Mercedes-Benz R-Class 3.0L Diesel · GY61 SYZ

The 2025-10-23 MOT for this 2011 Mercedes R-Class resulted in a pass, but several significant issues were recorded. An oil leak was noted, though described as "not excessive," and the offside front tyre had a damaged outer sidewall. Front brake discs showed wear, pitting, or scoring, and the nearside front outer drive shaft joint constant velocity boot was severely deteriorated. These findings suggest ongoing mechanical degradation, particularly in braking systems and drivetrain components. A 2024-10-08 MOT failure occurred at the same mileage (139,358 miles), with issues including non-functional side repeaters, tyres not fitted per side wall instructions, and windscreen chips. While the subsequent 2024-10-09 MOT passed, the failure highlights inconsistent maintenance or repair practices. The recurring oil leak, tyre-related defects, and drive shaft boot issues indicate a pattern of gradual wear rather than sudden failure. The trend of defects shows some stability but with persistent risks. Brake disc wear and oil leaks have appeared in multiple MOTs, suggesting potential neglect or systemic issues. The drive shaft boot deterioration reoccurred across 2022, 2024, and 2025, pointing to a likely unresolved problem with the CV joint.