Mercedes-Benz Glc MOT Pass Rate & Official DVSA Failure Statistics

Mercedes-Benz Glc MOT History and Failure Rates vs UK National Average

The Mercedes-Benz Glc passed on its first attempt in 88.9%, and its overall record sits +8.9 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Mercedes-Benz Glc in the 2023–2025 data: 253,792 tests across 9 model years (2015–2023). A test still carries exactly one pass or fail verdict.

Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.

Most Common Mercedes-Benz Glc MOT Problems by Failure Category

Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Mercedes-Benz Glc, the Tyres section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.

Shares are over the Mercedes-Benz Glc's recorded defect strings, merged across its year pages.

Top Recorded Mercedes-Benz Glc DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Mercedes-Benz Glc, each with how many of the model's 253,792 tests it was noted on.

• "Windscreen damaged but not adversely affecting driver's view" (Minor) — noted on about 6,212 Mercedes-Benz Glc tests, 2.4% of the model's MOT record.
• "Ball joint excessively worn" (Major) — noted on about 5,706 Mercedes-Benz Glc tests, 2.2% of the model's MOT record.
• "Has a cut in excess of the requirements deep enough to reach the ply or cords" (Major) — noted on about 4,125 Mercedes-Benz Glc tests, 1.6% of the model's MOT record.
• "Tread depth below requirements of 1.6mm" (Major) — noted on about 2,633 Mercedes-Benz Glc tests, 1.0% of the model's MOT record.
• "Malfunction indicator lamp inoperative or indicates a malfunction" (Major) — noted on about 2,225 Mercedes-Benz Glc tests, 0.9% of the model's MOT record.
• "Wipers blade defective" (Minor) — noted on about 2,097 Mercedes-Benz Glc tests, 0.8% of the model's MOT record.

Best and Worst Mercedes-Benz Glc Model Years by Pass Rate

The strongest Mercedes-Benz Glc model year on record is 2023 (98.1% across 157 tests), and the weakest is 2015 (86.5%). The gap between them is 11.6 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

Mercedes-Benz Glc reliability is improving in the DVSA data — the pass rate moves about 1.5 points a year across the most recent model years shown above.

Newest model year first. Only years with at least 50 recorded tests are listed.

Pre-MOT Inspection Checklist for Mercedes-Benz Glc Owners

These checks follow this Mercedes-Benz Glc's own most-recorded failure strings, starting with what a tester is most likely to flag on a Mercedes-Benz Glc.

• the windscreen — “windscreen damaged”

  Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.

• the suspension joints — “ball joint excessively worn”

  With the car parked on level ground, rock the top of each front wheel in and out while someone watches the suspension arm. Clunks, or rubber boots split and greasy, are what testers record here.

• the tyre tread — “tread depth below requirements of 1.6mm”

  Check all four tyres cold, including the inner shoulder where wear hides — 1.6mm across the central three-quarters is the legal limit, and most testers fail at 1.6mm without argument.

Derived from the DVSA failure strings testers recorded for the Mercedes-Benz Glc. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Frequently Asked Questions: Mercedes-Benz Glc MOT & Reliability