2021 BMW 730d: common problems and MOT failures
What MOT testers find on the BMW 730d first registered in 2021: we looked at the 738 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Common 2021 BMW 730d MOT failures and advisories
The share of 2021 BMW 730d MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres19% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Lights and electrics5% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Wipers, windscreen and mirrors3% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Brakes2% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Oil and fluid leaks1% of testsRough price £80–£600
At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.
- Seats and seatbelts1% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
Questions to ask the seller before buying a 2021 BMW 730d
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Can I see the service history and receipts for any big jobs?
Looking at a BMW 730d?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the BMW 730d compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2022 | 304 | Tyres 15% |
| 2020 | 1,270 | Tyres 18% |
| 2019 | 2,212 | Tyres 19% |
| 2018 | 1,912 | Tyres 20% |
| 2017 | 2,155 | Tyres 20% |
| 2016 | 2,550 | Tyres 20% |
| 2015 | 1,710 | Tyres 23% |
| 2014 | 2,098 | Tyres 26% |
| 2013 | 1,156 | Tyres 26% |
| 2012 | 1,482 | Tyres 28% |
| 2011 | 1,912 | Suspension 26% |
| 2010 | 1,379 | Tyres 29% |
| 2009 | 1,061 | Suspension 30% |
| 2008 | 1,446 | Suspension 35% |
| 2007 | 1,285 | Suspension 37% |
| 2006 | 1,771 | Suspension 42% |
| 2005 | 821 | Suspension 44% |
| 2004 | 393 | Brakes 41% |
| 2003 | 328 | Suspension 43% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of BMW 730d cars first registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score