BMW 420 2017 MOT pass rate by postcode area
The BMW 420 2017 MOT pass rate by postcode area runs from 95.0% in E down to 82.8% in RH — 12.2 points apart for the same model, the same model year and the same test. Below are all 82 postcode areas that tested enough of them to publish.
What a 12.2-point gap means
Pinned to one model year, this is not a table of old cars: every 2017 BMW 420 in the data is the same age. Over five annual MOTs the gap between the best and worst area is 0.6 extra failures — about £26–£59 in parts at this model's typical failure cost .
138 of 170 models by how far apart their best and worst postcode area are. Wider: Vauxhall Grandland (12.4). Narrower: Honda Cr-V (12.1).
Rates are for the 2017 model year only, in areas with at least 200 tests of it. Mileage, trim and use are pooled — a city van and a motorway van are one line here. Method. Compare it with the model's full history or this exact year.
Every postcode area, worst first
| Area | Pass rate | Tests |
|---|---|---|
| RH | 82.8% | 326 |
| PO | 82.9% | 362 |
| BN | 84.3% | 299 |
| EH | 84.8% | 395 |
| SO | 85.1% | 383 |
| DL | 85.2% | 230 |
| LS | 85.7% | 426 |
| G | 85.7% | 699 |
| NR | 85.7% | 322 |
| ML | 85.8% | 246 |
| KY | 85.8% | 218 |
| WA | 85.8% | 508 |
| ME | 85.9% | 354 |
| IG | 85.9% | 397 |
| WD | 85.9% | 234 |
| BS | 86.0% | 543 |
| RG | 86.1% | 690 |
| SN | 86.1% | 303 |
| GU | 86.2% | 491 |
| SK | 86.3% | 423 |
| NP | 86.4% | 324 |
| GL | 86.5% | 415 |
| AB | 86.6% | 269 |
| L | 86.8% | 408 |
| ST | 86.8% | 447 |
| NN | 86.8% | 546 |
| TN | 86.9% | 297 |
| CM | 87.0% | 507 |
| WV | 87.1% | 350 |
| CF | 87.2% | 516 |
| BH | 87.3% | 260 |
| SA | 87.4% | 364 |
| SG | 87.4% | 317 |
| MK | 87.5% | 512 |
| IP | 87.5% | 417 |
| CB | 87.7% | 227 |
| PR | 87.8% | 515 |
| HP | 87.8% | 395 |
| M | 88.0% | 666 |
| KA | 88.0% | 217 |
| NG | 88.2% | 765 |
| CV | 88.2% | 663 |
| OX | 88.3% | 349 |
| BL | 88.5% | 321 |
| PL | 88.5% | 226 |
| PE | 88.6% | 787 |
| DA | 88.6% | 289 |
| HU | 88.6% | 316 |
| CR | 88.6% | 273 |
| CT | 88.7% | 213 |
| HA | 88.8% | 330 |
| CH | 88.9% | 485 |
| DE | 89.0% | 517 |
| BD | 89.0% | 255 |
| EX | 89.1% | 220 |
| CW | 89.1% | 248 |
| SL | 89.1% | 396 |
| NE | 89.2% | 808 |
| LE | 89.3% | 754 |
| S | 89.3% | 806 |
| BB | 89.5% | 427 |
| TS | 89.5% | 420 |
| WS | 89.6% | 297 |
| CO | 89.9% | 247 |
| NW | 90.1% | 362 |
| B | 90.2% | 1,572 |
| LU | 90.4% | 364 |
| DN | 90.5% | 578 |
| DY | 90.7% | 215 |
| KT | 90.7% | 259 |
| LL | 91.0% | 245 |
| RM | 91.3% | 425 |
| OL | 91.3% | 300 |
| WF | 91.3% | 300 |
| EN | 91.4% | 314 |
| YO | 91.4% | 292 |
| TW | 91.5% | 272 |
| UB | 92.7% | 370 |
| SE | 92.9% | 351 |
| SS | 93.2% | 235 |
| N | 93.5% | 444 |
| E | 95.0% | 498 |
“vs national” is against this model's own rate across all years (87.1%), not against the national rate for all cars — a number that would flatter a new model and punish an old one.
What this cannot tell you
- Which garage to use. There is no test-station field in the anonymised data, so no station is implicated by any of this — why. The station directory lists what is near you.
- That the area causes it. Cars in some areas do more short trips, see more salt, or have owners who wait for an advisory to become a failure. The test cannot separate those.
- Anything about a single car. These are rates over hundreds or thousands of tests, not a prediction for one vehicle — one car with a bad exhaust is one car with a bad exhaust.
For context, this model's best area runs 8 points above its own all-years national rate.