2017 MERCEDES-BENZ G-CLASS5.5L Petrol

The vehicle’s most recent MOT history demonstrates a stable but irregular testing pattern, with the last two tests occurring within a tight window in early 2026. The March 2026 failure—followed immediately by a retest—indicates no recurring defects were recorded, though the retest’s swift passage suggests either a minor oversight or a test centre procedural anomaly rather than a mechanical issue. Beyond that, the January 2026 and all prior tests up to January 2025 show consistent passes with no advisories or faults, implying the vehicle has not experienced persistent mechanical failures. However, the abrupt retest sequence raises a question mark over whether the vehicle was moved or serviced between tests, as no mileage progression is noted between the February and March 2026 entries. The recorded mileage of 66,849 miles at the latest test reflects a steady but not excessive annual average of approximately 7,400 miles over nine years, which is typical for a luxury vehicle of this age. There are no significant gaps in mileage between tests—each annual interval shows roughly 6,000 to 7,000 miles—though the lack of mileage updates between the January 2026 and March 2026 tests suggests the vehicle may have been stationary or not driven during that period. This could indicate either light usage or a temporary storage period, neither of which inherently signals poor maintenance but does warrant confirmation that fluids (coolant, brake, differential) were topped up during inactivity. Given the absence of recorded defects, a buyer should prioritise an in-person inspection of high-wear components that are not routinely captured in MOT tests. The suspension, particularly the rear coil springs and bushes, should be examined for uneven sagging or excessive play, as these are critical for handling and often degrade silently. Brake systems, despite no MOT faults, require scrutiny—check for uneven disc wear, glazed pads, or binding calipers, especially if the vehicle has been stationary, as brake fluid can degrade over time. Structural integrity is another concern; inspect the underbody for corrosion around the sills, wheel arches, and exhaust mounts, as the G-Class is prone to rust in these areas. Finally, verify the condition of the exhaust system for leaks or excessive rust, as emissions-related faults are not always flagged until they become severe. The lack of advisories in past tests is reassuring, but these components are best assessed with a hands-on examination.