2018 Mercedes-Benz GLA 2.1L Diesel · FH18 KTO

The most recent MOT test on 30 March 2026 resulted in a pass, though it is important to note that an earlier test on the same date initially failed due to nearside and offside rear direction indicators displaying incorrect colour, which are classed as presentation requirements under section 4.4.3 (a) of the MOT inspection manual. Both indicators were also flagged as slightly discoloured on the previous test in April 2025, suggesting a persistent minor issue with the rear lamp units, likely involving aged or moisture-affected lens covers that have become faded or yellowed. The current trend across the most recent test cycle shows a degree of deterioration, with the vehicle moving from a clean pass in April 2024 to a failure with structural and presentation defects in 2025, followed by a pass with advisory items in 2026. This pattern warrants careful attention, as the offside rear coil spring fracture recorded in April 2025 is a significant structural and safety-related failure that has now been resolved, but indicates underlying wear in the suspension components. With 50,300 miles recorded over eight years, the vehicle averages approximately 6,288 miles per year, which is broadly consistent with typical mixed private and commuter usage for a Mercedes-Benz GLA of this vintage. There are no significant gaps in the recorded mileage history, suggesting reasonably consistent use rather than long periods of standing, which is generally favourable from a corrosion and component-binding perspective. However, the mileage is sufficient to have generated meaningful wear on consumable and suspension components, particularly given the fractured coil spring recorded in the test history, which suggests the vehicle may have been driven over uneven or potholed road surfaces or that the springs had reached the end of their service life. Buyers should be mindful that the GLA's coil springs are prone to fracture at this age and mileage, and any replacement should be confirmed as having been carried out with a matched pair if applicable. Prospective buyers should prioritise a thorough inspection of the rear brake system, given that the rear brake pads were noted as wearing thin in the most recent advisory. Although this was recorded as an advisory rather than a defect, it indicates that the pads are approaching the minimum legal thickness and replacement should be anticipated shortly. On a test drive, buyers should listen for any grinding or squealing from the rear brakes, particularly on light application, and observe whether the vehicle pulls to one side under braking, which could indicate uneven pad wear or a binding caliper. It would also be prudent to physically inspect the rear brake discs for signs of corrosion, scoring, or lipping, as discs are often replaced in conjunction with pads and may require attention if they have been subject to prolonged low-mileage use or aggressive pad wear. The nearside and offside rear direction indicator discolouration noted across consecutive tests should also be addressed, as this could indicate failing LED units, moisture ingress into the lens assembly, or simply aged plastic that requires replacement to ensure full roadworthiness. Beyond the recorded defects, a vehicle of this age and mileage warrants standard age-related inspection items that may not be captured in the MOT history. The offside front tyre was noted as worn on the legal limit in April 2025, and buyers should verify that this has since been replaced and that all four tyres are of matching brand, size, and tread depth to avoid drivetrain issues and ensure balanced handling. Although annual mileage is moderate, the eight-year age of the vehicle means that time-based deterioration should be considered, including checking the sidewalls of all tyres for cracking or perishing from age, even if tread depth remains adequate. The 12V battery is likely approaching the end of its typical service life and should be tested for cranking performance and voltage retention. Brake fluid and coolant should be confirmed as being changed in accordance with Mercedes-Benz service intervals, typically every two years for brake fluid, regardless of mileage, and the timing chain or belt service history should be verified to ensure the vehicle has been maintained in accordance with manufacturer schedules. Finally, a thorough underside inspection for corrosion, particularly around suspension mounting points and subframe areas, would be advisable given the recorded coil spring failure.