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The MoT Files: Postcodes where you're most likely to pass ... and fail

One of the most surprising aspects to come out of The MoT Files is the amount of regional variations. You wouldn't have thought that the MoT test (and whether you pass or fail) would vary that much - but it does.

Cars that are MoT'd in the extremities tend to perform worse than areas that are further inland, with the lowest rates in the country made up with coastal postcodes. Harsher conditions appear to equate to a lower pass rate, with the lowest three postcodes - Dundee, Lerwick and Kirkcaldy - all covering Scottish coastal towns. It's a similar story for Plymouth, Truro and Exeter in England.

The south east of England - particularly in and around London - dominates the other end of the table. If you have your  MoT carried in Romford (RM), there's a 70 per cent chance that you'll pass. The most common fault - as with most areas - is lighting and signalling. That covers items like blown bulbs, which may only become apparent when your car is MoT'd (especially with defects that aren't immediately obvious like number plate bulbs). Even so, you're 14 per cent less likely to fail on this than elsewhere. Porsche, Lexus and Subaru owners enjoy enviably low failure rates in RM postcodes, while at the bottom of the table Lotus is the only make that has a higher failure rate than the rest of the UK.

In Dundee (DD), every other car fails its MoT and you are 22 per cent less likely to pass your first MoT than you are in the rest of the UK. Almost a quarter of cars fail on Lighting and signalling , while MoT failure for brake problems is 98 per cent more likely in Dundee than the rest of the country. Chevrolet has the lowest failure rate in Dundee, but only 348 were tested (compared to more than 13,000 Fords) and it's still 29 per cent higher than elsewhere.

Birmingham carries out more MoT tests than any other postcode area - and by some way too. In the period that our data focuses on (October 2010-September 2011), there were 788,357 tests carried out, significantly more than the second highest, Sheffied, with 579,371. Coincidentally, the two postcodes have the same pass rate and sit at 47th and 58th in the overall table.

Some postcode areas appear to favour particular makes. In Milton Keynes (MK), for instance, Aston Martin has the highest pass rate of any manufacturer and an unusually high number of MoT tests. This anomoly can be attributed to the fact that the firm's servicing and restoration centre is based in Newport Pagnell (MK16) and so it sees a greater number of Aston Martins than anywhere else (they're also the very best quality, too).

Mo T Postcode Graph

 

Pass Rate By Postcode

Postcode Area Name  Number of MoT Tests  MoT Pass Rate
AB Aberdeen                       219,960 55%
BA Bath                       238,923 56%
Birmingham                       788,357 62%
BB Blackburn                       209,319 58%
FY Blackpool                       118,344 58%
BL Bolton                       186,150 60%
BH Bournemouth                       294,089 57%
BD Bradford                       231,145 55%
BN Brighton                       341,234 56%
BS Bristol                       465,434 57%
BR Bromley                       108,243 69%
CB Cambridge                       192,198 62%
CT Canterbury                       207,144 58%
CF Cardiff                       439,286 56%
CA Carlisle                       154,921 59%
CM Chelmsford                       332,853 68%
CH Chester                       297,139 58%
TS Cleveland                       246,407 58%
CO Colchester                       203,670 63%
CV Coventry                       375,959 62%
CW Crewe                       151,418 60%
CR Croydon                       193,628 66%
DL Darlington                       156,064 60%
DA Dartford                       201,116 64%
DE Derby                       347,039 61%
DN Doncaster                       345,092 61%
DT Dorchester                       107,321 61%
DY Dudley                       185,651 61%
DG Dumfries                         67,228 64%
DD Dundee                       107,453 49%
DH Durham                       127,357 62%
EH Edinburgh                       327,928 58%
EN Enfield                       153,375 69%
EX Exeter                       293,596 54%
FK Falkirk and Stirling                       118,225 58%
TD Galashiels                         53,951 60%
Glasgow                       396,258 58%
GL Gloucester                       339,011 59%
GU Guildford                       378,087 62%
HX Halifax                         70,998 62%
HG Harrogate                         72,365 60%
HA Harrow                       168,509 62%
HP Hemel Hempstead                       268,677 64%
HR Hereford                       101,932 63%
HD Huddersfield                       103,650 59%
HU Hull                       182,964 54%
IG Ilford                       108,094 69%
IV Inverness                       106,466 57%
IP Ipswich                       314,943 61%
KA Kilmarnock                       149,632 58%
KT Kingston upon Thames                       258,555 66%
KY Kirkcaldy                       153,358 52%
KW Kirkwall                         23,551 62%
LA Lancaster                       151,139 60%
LS Leeds                       278,067 54%
LE Leicester                       455,317 64%
ZE Lerwick                         10,385 52%
LN Lincoln                       153,009 58%
Liverpool                       284,972 60%
LD Llandrindod Wells                         26,341 57%
LL Llandudno                       276,363 63%
London E                       255,272 62%
London N                       223,442 62%
NW London NW                       213,731 65%
SE London SE                       268,017 65%
SW London SW                       184,677 62%
London W                         98,947 62%
LU Luton                       144,227 65%
Manchester                       389,040 60%
MK Milton Keynes                       259,834 61%
ML Motherwell                       140,689 59%
NE Newcastle upon Tyne                       427,987 60%
NP Newport                       215,248 58%
NN Northampton                       325,218 58%
NR Norwich                       367,614 61%
NG Nottingham                       484,313 57%
OL Oldham                       175,378 58%
HS Outer Hebrides                         12,212 62%
OX Oxford                       295,263 62%
PA Paisley                       126,677 58%
PH Perth                         78,610 59%
PE Peterborough                       462,464 63%
PL Plymouth                       273,475 54%
PO Portsmouth                       381,975 55%
PR Preston                       247,501 61%
RG Reading                       410,907 64%
RH Redhill                       289,222 64%
ME Rochester                       289,801 63%
RM Romford                       228,791 70%
SP Salisbury                       127,229 58%
Sheffield                       579,371 62%
SY Shrewsbury                       182,247 62%
SL Slough                       214,878 69%
UB Southall                       177,623 63%
SO Southampton                       343,489 59%
SS Southend-on-Sea                       247,672 69%
AL St Albans                       125,222 65%
SG Stevenage                       198,558 63%
SK Stockport                       276,171 61%
ST Stoke-on-Trent                       296,688 56%
SR Sunderland                         93,009 58%
SM Sutton                         63,679 62%
SA Swansea                       348,671 57%
SN Swindon                       235,270 63%
TA Taunton                       167,831 56%
TF Telford                         93,636 58%
TN Tonbridge                       368,131 62%
TQ Torquay                       144,113 54%
TR Truro                       160,325 54%
TW Twickenham                       199,257 66%
WF Wakefield                       229,377 60%
WS Walsall                       199,472 58%
WA Warrington                       297,710 64%
WD Watford                       117,797 64%
WN Wigan                       119,650 60%
WV Wolverhampton                       174,745 59%
WR Worcester                       151,524 62%
YO York                       252,140 59%

 

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