Where in Britain does the Mercedes-Benz G fail its MOT most?

Across Britain, 11.4% of 4,917 initial MOT tests (first attempts) of the Mercedes-Benz G failed in 2019–2024. It fails most in Hemel Hempstead (HP): 18.7% against 11.2% elsewhere (+7.5 points). It does best in Nottingham (NG), −9.5 points. Area rates are not age-adjusted.

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · Mercedes-Benz G MOT statistics · check a Mercedes-Benz G by registration

Mercedes-Benz G in every postcode area with 100+ tests

From the largest excess over the rest of Britain to the largest shortfall.

Mercedes-Benz G: first-time MOT failure by postcode area against the rest of Britain (2019–2024, not age-adjusted)
Area	Failed here, %	Rest of Britain, %	Difference, points	95% interval	Tests
Hemel Hempstead (HP)	18.7	11.2	+7.5	+0.0 to +14.9	107 (rough estimate)
Reading (RG)	18.5	11.2	+7.3	−0.1 to +14.7	108 (rough estimate)
London SW (SW)	18.1	11.1	+7.0	+1.9 to +12.1	227 (rough estimate)
Twickenham (TW)	13.1	11.3	+1.7	−3.7 to +7.2	153 (rough estimate)
Birmingham (B)	13.0	11.3	+1.7	−4.0 to +7.4	138 (rough estimate)
London NW (NW)	11.4	11.4	−0.0	−3.9 to +3.8	273 (rough estimate)
London W (W)	10.3	11.4	−1.1	−6.7 to +4.5	116 (rough estimate)
Chelmsford (CM)	9.3	11.4	−2.1	−7.4 to +3.2	118 (rough estimate)
Uxbridge (UB)	6.6	11.5	−4.9	−9.4 to −0.4	121 (rough estimate)
Kingston upon Thames (KT)	6.3	11.6	−5.3	−8.9 to −1.7	190 (rough estimate)
Nottingham (NG)	2.2	11.7	−9.5	−12.1 to −6.9	139 (rough estimate)

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 4,917 (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

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