2018 Mercedes-Benz GLC 2.0L Petrol · CF18 VPC

The most recent MOT test for this 2018 Mercedes-Benz GLC was conducted on 2025-10-08 and resulted in a clean pass, marking a significant improvement from its previous test on 2025-10-07, which recorded two dangerous failures—front brake pads below the legal minimum thickness of 1.5 mm and nearside rear tyre tread depth falling short of the 1.6 mm requirement. While the 2024 and earlier MOTs show no dangerous defects, the presence of multiple advisories over the past three years—particularly regarding tyre wear, including edge wear and sidewall damage—suggests a pattern of either aggressive driving practices or suboptimal maintenance. The vehicle’s MOT history thus indicates a trend of declining tyre and brake condition until corrective action was taken, followed by a return to compliance, which is a positive development but underscores the importance of addressing wear progression before it escalates to failure points. The recorded mileage of 67,140 miles for an eight-year-old GLC reflects a moderate annual usage rate of approximately 8,392 miles per year, which is within the expected range for this vehicle class. However, the mileage distribution does not appear to align with typical long-term usage patterns, as there is no clear evidence of a steady, gradual accumulation. The absence of significant mileage gaps or high-mileage spikes suggests either a combination of light use over the years, periods of stationary storage, or a more active driving regimen that has accelerated wear on consumables and wear items. For a vehicle of this age and mileage, the suspension, brakes, and tyres are particularly susceptible to wear, with the recent MOT failures highlighting critical thresholds that must be monitored closely to prevent dangerous conditions. Given the recent MOT history, the prospective buyer should prioritise a thorough inspection of the front brake system, focusing on the brake pads, discs, and calipers for signs of uneven wear, corrosion, or binding. During a test drive, listen for any grinding noises when applying the brakes, which could indicate pad-to-disc contact or warping, and check for a firm, even pedal feel without excessive vibration or shuddering. Additionally, the nearside rear tyre failures from the 2025 test warrant immediate attention; inspect the tyre tread depth across the entire circumference, particularly the edges and shoulders, and look for signs of sidewall damage or cracking. Test drive the vehicle at various speeds and cornering angles to observe tyre grip and any signs of uneven wear patterns, such as cupping or excessive cupping, which may suggest suspension or alignment issues. Beyond the mechanical checks, the buyer should also assess the vehicle’s overall condition for signs of standing corrosion, particularly around the wheel arches, underbody, and exhaust system, as these areas are prone to rust in stationary vehicles. Given the vehicle’s age, the tyres should be checked for sidewall perishing or cracking, which can compromise structural integrity and safety. The 12V battery should be tested for voltage output and overall health, especially if the vehicle has been left unused for extended periods, as standing batteries can suffer from sulphation or internal failure. Finally, while the MOT history is clean aside from the recent tyre and brake issues, it is advisable to verify the service history for fluid changes, particularly the brake fluid, which should be replaced every two years or 60,000 miles to prevent degradation and contamination. Additionally, inspect the exhaust emissions system for leaks or excessive backpressure, which could indicate catalytic converter or manifold wear, and ensure the fuel system is free of corrosion or blockages, as the GLC’s diesel engine benefits from regular maintenance to prevent long-term efficiency losses.