Where in Britain does the Mercedes-Benz GLS fail its MOT most?
Across Britain, 12.1% of 11,153 initial MOT tests (first attempts) of the Mercedes-Benz GLS failed in 2019–2024. It fails most in Watford (WD): 24.1% against 11.9% elsewhere (+12.1 points). It does best in London SE (SE), −6.7 points. Area rates are not age-adjusted.
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · Mercedes-Benz GLS MOT statistics · check a Mercedes-Benz GLS by registration
Mercedes-Benz GLS in every postcode area with 100+ tests
From the largest excess over the rest of Britain to the largest shortfall.
| Area | Failed here, % | Rest of Britain, % | Difference, points | 95% interval | Tests |
|---|---|---|---|---|---|
| Watford (WD) | 24.1 | 11.9 | +12.1 | +4.0 to +20.2 | 108 (rough estimate) |
| Guildford (GU) | 18.8 | 11.9 | +6.8 | +1.4 to +12.3 | 197 (rough estimate) |
| Southampton (SO) | 17.6 | 12.0 | +5.7 | −0.8 to +12.1 | 136 (rough estimate) |
| Cardiff (CF) | 16.9 | 12.0 | +4.9 | −1.7 to +11.6 | 124 (rough estimate) |
| Redhill (RH) | 16.7 | 12.0 | +4.7 | −2.2 to +11.5 | 114 (rough estimate) |
| London SW (SW) | 16.4 | 12.0 | +4.4 | −0.4 to +9.2 | 232 (rough estimate) |
| Bristol (BS) | 15.8 | 12.0 | +3.7 | −2.2 to +9.7 | 146 (rough estimate) |
| Edinburgh (EH) | 15.7 | 12.0 | +3.7 | −1.6 to +9.0 | 185 (rough estimate) |
| Medway (ME) | 15.2 | 12.0 | +3.2 | −2.8 to +9.2 | 138 (rough estimate) |
| Leicester (LE) | 14.8 | 12.0 | +2.8 | −2.4 to +8.0 | 182 (rough estimate) |
| Doncaster (DN) | 14.8 | 12.0 | +2.8 | −3.9 to +9.5 | 108 (rough estimate) |
| Hemel Hempstead (HP) | 14.8 | 12.0 | +2.8 | −2.2 to +7.7 | 203 (rough estimate) |
| Portsmouth (PO) | 14.7 | 12.0 | +2.6 | −3.8 to +9.1 | 116 (rough estimate) |
| Stockport (SK) | 13.8 | 12.0 | +1.8 | −3.7 to +7.3 | 152 (rough estimate) |
| Oxford (OX) | 13.8 | 12.0 | +1.8 | −4.6 to +8.1 | 116 (rough estimate) |
| Coventry (CV) | 13.6 | 12.0 | +1.6 | −4.5 to +7.6 | 125 (rough estimate) |
| Uxbridge (UB) | 13.1 | 12.0 | +1.0 | −4.0 to +6.0 | 176 (rough estimate) |
| Twickenham (TW) | 12.9 | 12.0 | +0.9 | −3.4 to +5.2 | 240 (rough estimate) |
| London W (W) | 12.7 | 12.1 | +0.6 | −4.9 to +6.1 | 142 (rough estimate) |
| Bolton (BL) | 12.6 | 12.1 | +0.6 | −5.4 to +6.5 | 119 (rough estimate) |
| Slough (SL) | 12.6 | 12.1 | +0.5 | −5.1 to +6.2 | 135 (rough estimate) |
| Tonbridge (TN) | 12.3 | 12.1 | +0.2 | −4.5 to +5.0 | 187 (rough estimate) |
| Croydon (CR) | 11.8 | 12.1 | −0.3 | −5.6 to +5.0 | 144 (rough estimate) |
| Derby (DE) | 11.6 | 12.1 | −0.4 | −5.7 to +4.8 | 146 (rough estimate) |
| Brighton (BN) | 11.5 | 12.1 | −0.6 | −6.5 to +5.4 | 113 (rough estimate) |
| Ilford (IG) | 11.0 | 12.1 | −1.0 | −6.2 to +4.1 | 145 (rough estimate) |
| Romford (RM) | 11.0 | 12.1 | −1.1 | −5.3 to +3.1 | 219 (rough estimate) |
| Warrington (WA) | 10.7 | 12.1 | −1.4 | −7.1 to +4.4 | 112 (rough estimate) |
| Manchester (M) | 10.6 | 12.1 | −1.5 | −7.0 to +4.0 | 123 (rough estimate) |
| Birmingham (B) | 10.5 | 12.1 | −1.6 | −4.9 to +1.8 | 332 (rough estimate) |
| London NW (NW) | 10.3 | 12.1 | −1.8 | −5.0 to +1.4 | 358 (rough estimate) |
| Stevenage (SG) | 9.8 | 12.1 | −2.3 | −7.6 to +2.9 | 123 (rough estimate) |
| Reading (RG) | 9.8 | 12.1 | −2.3 | −5.9 to +1.2 | 276 (rough estimate) |
| Kingston upon Thames (KT) | 9.7 | 12.1 | −2.4 | −5.5 to +0.6 | 371 (rough estimate) |
| Milton Keynes (MK) | 9.5 | 12.1 | −2.6 | −6.7 to +1.5 | 200 (rough estimate) |
| Dartford (DA) | 9.4 | 12.1 | −2.6 | −7.8 to +2.5 | 127 (rough estimate) |
| Southend-on-Sea (SS) | 9.3 | 12.1 | −2.8 | −7.8 to +2.3 | 129 (rough estimate) |
| Glasgow (G) | 9.0 | 12.1 | −3.1 | −7.6 to +1.5 | 155 (rough estimate) |
| Sheffield (S) | 8.3 | 12.1 | −3.8 | −8.2 to +0.6 | 156 (rough estimate) |
| London E (E) | 8.2 | 12.1 | −3.9 | −8.4 to +0.6 | 146 (rough estimate) |
| Harrow (HA) | 8.2 | 12.1 | −4.0 | −8.6 to +0.7 | 135 (rough estimate) |
| Peterborough (PE) | 8.0 | 12.1 | −4.1 | −8.7 to +0.5 | 137 (rough estimate) |
| London N (N) | 7.2 | 12.1 | −4.9 | −8.9 to −0.9 | 166 (rough estimate) |
| Chelmsford (CM) | 7.3 | 12.2 | −4.9 | −7.9 to −1.9 | 302 (rough estimate) |
| Nottingham (NG) | 6.3 | 12.2 | −5.9 | −8.5 to −3.3 | 347 (rough estimate) |
| London SE (SE) | 5.4 | 12.1 | −6.7 | −10.4 to −3.0 | 148 (rough estimate) |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 11,153 (initial tests) · Method: postcode area of the testing station against the same model's tests elsewhere in Britain, difference of two proportions with a 95% interval; named at 3+ points with the interval clear of zero; not age-adjusted · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
Other pages for this model
Mercedes-Benz GLS 2016 · Mercedes-Benz GLS 2017 · Mercedes-Benz GLS 2018 · Mercedes-Benz GLS 2019 · Mercedes-Benz GLS 2020 · Mercedes-Benz GLS body, chassis and structure failures · Mercedes-Benz GLS brakes failures · Mercedes-Benz GLS vehicle identification failures · Mercedes-Benz GLS lamps, reflectors and electrics failures · Mercedes-Benz GLS noise, emissions and leaks failures · Mercedes-Benz GLS seat belts and airbags failures · Mercedes-Benz GLS suspension failures · Mercedes-Benz GLS tyres failures · Mercedes-Benz GLS visibility failures