2019 Mercedes-Benz GLC 2.1L Diesel · WM68 RWN

The latest MOT test on 2026-02-02 resulted in a passing grade, though it included several advisories that warrant careful consideration. The overall maintenance trend over the past four years appears stable, with no outright failures and only minor issues recorded in each test. However, the recurring advisories—particularly those related to tyre wear, brake disc condition, and suspension ball joint play—suggest that while the vehicle remains roadworthy, it is approaching critical thresholds that may require attention before they escalate into more serious defects. The presence of a near-side rear child seat advisory in the most recent test also indicates potential restrictions on full inspection, which could affect future MOT assessments if the seat remains in place. The recorded mileage of 42,875 miles for a vehicle aged approximately seven years reflects a moderate annual usage rate of around 6,125 miles per year, which is within the expected range for this model. Such usage suggests a balance between regular driving and periods of inactivity, which can lead to specific wear patterns. Lower mileage might indicate lighter use or extended periods where the vehicle stood stationary, potentially causing issues like brake disc corrosion, caliper binding, or fluid degradation from stagnation. Conversely, higher mileage could accelerate wear on consumables like tyres, suspension components, and drivetrain elements, which is already evident in the advisories regarding tyre wear and ball joint play. For a prospective buyer, the most critical areas to inspect during a physical examination are the tyres, brakes, and suspension. The repeated advisories on tyre wear—particularly the edge wear and near-legal limits—indicate that the vehicle may have experienced uneven loading or alignment issues. On a test drive, listen for signs of uneven tyre wear, such as clunking noises from one side or the other, or check for lateral movement when cornering, which could signal misalignment or camber issues. The brake discs, especially the rear ones, show signs of pitting and scoring but are not yet severely weakened. Inspect the discs for corrosion or binding calipers, which can cause grinding noises during braking or a spongy pedal feel. During the test drive, observe for brake shudder, especially at higher speeds, or a pull to one side, which may indicate warped discs or uneven wear. Additionally, verify the suspension components, focusing on the near-side front suspension arm ball joint, which exhibited slight play in the previous MOT. On a test drive, listen for clunking or rattling noises when driving over bumps, particularly from the front or rear, as this could indicate worn suspension bushes or broken links. Check for uneven suspension travel, which may suggest worn coil springs or struts. Given the vehicle’s age and the potential for standing corrosion, inspect the undercarriage for signs of rust, particularly around the wheel arches, exhaust system, and brake components. Also, examine the battery terminals for corrosion and ensure the 12V battery holds a charge when cold cranking amps are tested, as older batteries can fail unexpectedly. Finally, since the vehicle has been driven regularly, consider checking the fluid levels—particularly the brake fluid, coolant, and differential oil—against manufacturer recommendations, as these fluids degrade over time even with regular use.