Where in Britain does the Mercedes-Benz CLA fail its MOT most?
Across Britain, 17.8% of 260,294 initial MOT tests (first attempts) of the Mercedes-Benz CLA failed in 2019–2024. It fails most in Salisbury (SP): 25.7% against 17.7% elsewhere (+8.0 points). It does best in Blackburn (BB), −5.1 points. Area rates are not age-adjusted.
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · Mercedes-Benz CLA MOT statistics · check a Mercedes-Benz CLA by registration
Mercedes-Benz CLA 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 |
|---|---|---|---|---|---|
| Salisbury (SP) | 25.7 | 17.7 | +8.0 | +4.5 to +11.5 | 610 |
| Huddersfield (HD) | 24.0 | 17.7 | +6.3 | +3.9 to +8.7 | 1,221 |
| Cambridge (CB) | 23.6 | 17.7 | +5.8 | +3.0 to +8.7 | 882 |
| Canterbury (CT) | 22.7 | 17.7 | +4.9 | +2.6 to +7.3 | 1,249 |
| Dundee (DD) | 22.0 | 17.7 | +4.3 | +1.9 to +6.7 | 1,158 |
| Kirkcaldy (KY) | 21.7 | 17.7 | +4.0 | +1.7 to +6.3 | 1,226 |
| Bournemouth (BH) | 21.5 | 17.7 | +3.8 | +1.9 to +5.8 | 1,736 |
| Brighton (BN) | 21.5 | 17.7 | +3.8 | +1.8 to +5.7 | 1,730 |
| Darlington (DL) | 21.5 | 17.7 | +3.8 | +1.6 to +5.9 | 1,433 |
| Perth (PH) | 21.5 | 17.7 | +3.7 | +0.2 to +7.2 | 536 |
| Watford (WD) | 21.4 | 17.7 | +3.7 | +1.4 to +6.0 | 1,218 |
| Northampton (NN) | 21.3 | 17.7 | +3.6 | +2.2 to +5.1 | 3,178 |
| Portsmouth (PO) | 21.4 | 17.7 | +3.6 | +1.9 to +5.3 | 2,230 |
| Ipswich (IP) | 21.1 | 17.7 | +3.4 | +1.6 to +5.3 | 1,863 |
| Guildford (GU) | 21.0 | 17.7 | +3.3 | +1.5 to +5.0 | 2,038 |
| Aberdeen (AB) | 20.9 | 17.7 | +3.1 | +1.3 to +5.0 | 1,868 |
| Bristol (BS) | 20.7 | 17.7 | +3.0 | +1.8 to +4.2 | 4,270 |
| Paisley (PA) | 20.7 | 17.7 | +2.9 | +0.9 to +4.9 | 1,572 |
| Exeter (EX) | 20.6 | 17.7 | +2.8 | +0.2 to +5.5 | 889 |
| Hull (HU) | 20.5 | 17.7 | +2.8 | +1.3 to +4.3 | 2,904 |
| Falkirk (FK) | 20.2 | 17.7 | +2.4 | +0.4 to +4.4 | 1,571 |
| Cardiff (CF) | 20.1 | 17.7 | +2.4 | +1.2 to +3.6 | 4,418 |
| Medway (ME) | 20.0 | 17.7 | +2.2 | +0.7 to +3.8 | 2,583 |
| Stockport (SK) | 20.0 | 17.7 | +2.2 | +1.0 to +3.5 | 3,843 |
| Wigan (WN) | 19.8 | 17.7 | +2.1 | +0.1 to +4.0 | 1,614 |
| Redhill (RH) | 19.6 | 17.7 | +1.9 | −0.1 to +3.9 | 1,510 |
| Edinburgh (EH) | 19.5 | 17.7 | +1.8 | +0.4 to +3.2 | 3,105 |
| Cleveland (TS) | 19.4 | 17.7 | +1.7 | +0.5 to +2.9 | 4,060 |
| Crewe (CW) | 19.4 | 17.7 | +1.6 | −0.3 to +3.6 | 1,600 |
| Liverpool (L) | 19.4 | 17.7 | +1.6 | +0.5 to +2.7 | 4,976 |
| Gloucester (GL) | 19.3 | 17.7 | +1.6 | −0.3 to +3.4 | 1,709 |
| Walsall (WS) | 19.3 | 17.7 | +1.6 | −0.1 to +3.2 | 2,254 |
| Chester (CH) | 19.2 | 17.7 | +1.5 | +0.1 to +2.9 | 3,019 |
| St Albans (AL) | 19.2 | 17.7 | +1.5 | −1.5 to +4.5 | 681 |
| Norwich (NR) | 19.2 | 17.7 | +1.4 | −0.3 to +3.2 | 1,986 |
| Taunton (TA) | 19.2 | 17.7 | +1.4 | −1.5 to +4.4 | 678 |
| Dorchester (DT) | 19.1 | 17.8 | +1.3 | −3.1 to +5.7 | 304 (rough estimate) |
| Plymouth (PL) | 19.1 | 17.7 | +1.3 | −0.9 to +3.5 | 1,228 |
| Colchester (CO) | 19.0 | 17.7 | +1.3 | −0.8 to +3.3 | 1,383 |
| Swansea (SA) | 19.0 | 17.7 | +1.2 | −0.3 to +2.7 | 2,683 |
| Motherwell (ML) | 19.0 | 17.7 | +1.2 | −0.3 to +2.8 | 2,451 |
| Llandudno (LL) | 18.8 | 17.7 | +1.0 | −0.9 to +2.9 | 1,620 |
| Chelmsford (CM) | 18.7 | 17.7 | +1.0 | −0.3 to +2.3 | 3,630 |
| Tonbridge (TN) | 18.7 | 17.7 | +0.9 | −0.8 to +2.7 | 1,921 |
| Glasgow (G) | 18.7 | 17.7 | +0.9 | +0.1 to +1.8 | 7,696 |
| Preston (PR) | 18.6 | 17.7 | +0.9 | −0.5 to +2.3 | 2,993 |
| Telford (TF) | 18.4 | 17.8 | +0.6 | −2.4 to +3.5 | 665 |
| Croydon (CR) | 18.3 | 17.7 | +0.6 | −0.9 to +2.1 | 2,551 |
| Bath (BA) | 18.3 | 17.8 | +0.5 | −1.7 to +2.8 | 1,133 |
| Dartford (DA) | 18.3 | 17.7 | +0.5 | −1.0 to +2.0 | 2,536 |
| Worcester (WR) | 18.2 | 17.8 | +0.5 | −2.1 to +3.0 | 873 |
| Southampton (SO) | 18.2 | 17.7 | +0.5 | −1.1 to +2.0 | 2,439 |
| Warrington (WA) | 18.1 | 17.7 | +0.3 | −0.8 to +1.5 | 4,194 |
| Kilmarnock (KA) | 18.0 | 17.8 | +0.2 | −1.5 to +2.0 | 1,873 |
| Derby (DE) | 17.9 | 17.8 | +0.2 | −1.0 to +1.4 | 3,802 |
| London SW (SW) | 17.9 | 17.8 | +0.2 | −1.9 to +2.3 | 1,310 |
| Blackpool (FY) | 17.9 | 17.8 | +0.1 | −1.9 to +2.1 | 1,414 |
| York (YO) | 17.8 | 17.8 | +0.1 | −1.7 to +1.9 | 1,756 |
| Hemel Hempstead (HP) | 17.6 | 17.8 | −0.1 | −1.7 to +1.5 | 2,219 |
| London SE (SE) | 17.6 | 17.8 | −0.2 | −1.4 to +1.0 | 3,816 |
| Milton Keynes (MK) | 17.6 | 17.8 | −0.2 | −1.6 to +1.2 | 3,009 |
| Stoke-on-Trent (ST) | 17.4 | 17.8 | −0.3 | −1.7 to +1.1 | 2,895 |
| Sunderland (SR) | 17.4 | 17.8 | −0.3 | −2.2 to +1.5 | 1,658 |
| Newport (NP) | 17.4 | 17.8 | −0.4 | −2.2 to +1.5 | 1,650 |
| Torquay (TQ) | 17.4 | 17.8 | −0.4 | −4.5 to +3.8 | 322 (rough estimate) |
| Reading (RG) | 17.4 | 17.8 | −0.4 | −1.8 to +1.0 | 2,892 |
| Ilford (IG) | 17.3 | 17.8 | −0.4 | −2.0 to +1.1 | 2,403 |
| Dudley (DY) | 17.3 | 17.8 | −0.5 | −2.3 to +1.4 | 1,619 |
| Leicester (LE) | 17.1 | 17.8 | −0.6 | −1.8 to +0.5 | 4,128 |
| Oxford (OX) | 17.1 | 17.8 | −0.6 | −2.3 to +1.1 | 1,910 |
| London NW (NW) | 17.1 | 17.8 | −0.7 | −1.9 to +0.6 | 3,537 |
| Coventry (CV) | 17.1 | 17.8 | −0.7 | −1.9 to +0.6 | 3,444 |
| Stevenage (SG) | 16.9 | 17.8 | −0.8 | −2.4 to +0.8 | 2,112 |
| Newcastle (NE) | 16.9 | 17.8 | −0.8 | −1.9 to +0.2 | 5,152 |
| Romford (RM) | 16.8 | 17.8 | −1.0 | −2.2 to +0.3 | 3,372 |
| Durham (DH) | 16.7 | 17.8 | −1.0 | −3.2 to +1.2 | 1,118 |
| Swindon (SN) | 16.7 | 17.8 | −1.0 | −2.9 to +0.9 | 1,507 |
| Doncaster (DN) | 16.6 | 17.8 | −1.2 | −2.2 to −0.1 | 4,701 |
| Harrogate (HG) | 16.6 | 17.8 | −1.2 | −4.0 to +1.7 | 658 |
| London N (N) | 16.6 | 17.8 | −1.2 | −2.7 to +0.3 | 2,393 |
| Hereford (HR) | 16.4 | 17.8 | −1.3 | −6.1 to +3.5 | 231 (rough estimate) |
| Lincoln (LN) | 16.4 | 17.8 | −1.3 | −3.6 to +0.9 | 1,029 |
| Bolton (BL) | 16.4 | 17.8 | −1.3 | −2.6 to −0.1 | 3,664 |
| Wolverhampton (WV) | 16.4 | 17.8 | −1.4 | −3.0 to +0.2 | 2,038 |
| Southend-on-Sea (SS) | 16.4 | 17.8 | −1.4 | −2.9 to +0.1 | 2,381 |
| Carlisle (CA) | 16.3 | 17.8 | −1.4 | −3.6 to +0.7 | 1,145 |
| Manchester (M) | 16.2 | 17.8 | −1.6 | −2.6 to −0.6 | 5,582 |
| Bradford (BD) | 16.2 | 17.8 | −1.6 | −3.2 to −0.0 | 2,095 |
| Leeds (LS) | 16.2 | 17.8 | −1.6 | −2.8 to −0.4 | 3,519 |
| Birmingham (B) | 16.0 | 17.8 | −1.8 | −2.6 to −1.1 | 8,487 |
| Sheffield (S) | 15.9 | 17.8 | −1.9 | −2.8 to −1.0 | 6,242 |
| Halifax (HX) | 15.8 | 17.8 | −2.0 | −4.8 to +0.8 | 647 |
| Inverness (IV) | 15.7 | 17.8 | −2.1 | −4.9 to +0.7 | 651 |
| Oldham (OL) | 15.6 | 17.8 | −2.1 | −3.6 to −0.6 | 2,278 |
| Bromley (BR) | 15.6 | 17.8 | −2.2 | −4.5 to +0.2 | 891 |
| Wakefield (WF) | 15.6 | 17.8 | −2.2 | −3.5 to −0.9 | 3,005 |
| Twickenham (TW) | 15.6 | 17.8 | −2.2 | −3.7 to −0.7 | 2,139 |
| Peterborough (PE) | 15.6 | 17.8 | −2.2 | −3.3 to −1.2 | 4,517 |
| London W (W) | 15.3 | 17.8 | −2.4 | −5.0 to +0.2 | 756 |
| Lancaster (LA) | 15.1 | 17.8 | −2.7 | −5.0 to −0.3 | 874 |
| Sutton (SM) | 15.1 | 17.8 | −2.7 | −5.7 to +0.4 | 531 |
| Uxbridge (UB) | 15.0 | 17.8 | −2.7 | −4.2 to −1.2 | 2,214 |
| Slough (SL) | 15.0 | 17.8 | −2.8 | −4.5 to −1.1 | 1,726 |
| London E (E) | 15.0 | 17.8 | −2.8 | −4.0 to −1.6 | 3,595 |
| Galashiels (TD) | 14.7 | 17.8 | −3.0 | −7.1 to +1.1 | 285 (rough estimate) |
| Enfield (EN) | 14.8 | 17.8 | −3.0 | −4.6 to −1.5 | 2,033 |
| Luton (LU) | 14.7 | 17.8 | −3.0 | −4.5 to −1.6 | 2,199 |
| Dumfries (DG) | 14.1 | 17.8 | −3.6 | −7.6 to +0.3 | 297 (rough estimate) |
| Shrewsbury (SY) | 14.0 | 17.8 | −3.8 | −6.1 to −1.5 | 895 |
| Kingston upon Thames (KT) | 13.9 | 17.8 | −3.9 | −5.4 to −2.3 | 1,954 |
| Harrow (HA) | 13.5 | 17.8 | −4.3 | −5.8 to −2.8 | 1,987 |
| Truro (TR) | 13.3 | 17.8 | −4.4 | −7.7 to −1.1 | 405 (rough estimate) |
| Nottingham (NG) | 13.1 | 17.9 | −4.8 | −5.6 to −4.0 | 6,867 |
| Blackburn (BB) | 12.7 | 17.8 | −5.1 | −6.4 to −3.8 | 2,543 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 260,294 (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 CLA 2013 · Mercedes-Benz CLA 2014 · Mercedes-Benz CLA 2015 · Mercedes-Benz CLA 2016 · Mercedes-Benz CLA 2017 · Mercedes-Benz CLA 2018 · Mercedes-Benz CLA 2019 · Mercedes-Benz CLA 2020 · Mercedes-Benz CLA in Norway · Mercedes-Benz CLA in Finland · Mercedes-Benz CLA in the Netherlands · Mercedes-Benz CLA body, chassis and structure failures · Mercedes-Benz CLA brakes failures · Mercedes-Benz CLA vehicle identification failures · Mercedes-Benz CLA lamps, reflectors and electrics failures · Mercedes-Benz CLA noise, emissions and leaks failures · Mercedes-Benz CLA road wheels failures · Mercedes-Benz CLA seat belts and airbags failures · Mercedes-Benz CLA steering failures · Mercedes-Benz CLA suspension failures · Mercedes-Benz CLA tyres failures · Mercedes-Benz CLA visibility failures