Used buying checklist
BMW I8 reliability, common problems and used buying checks
A used BMW I8 looks better than average for reliability in UK MOT data: 8.1% of 2,472 tests failed, compared with 18.7% across all indexed models. A good example should have a clean MOT history for windscreen, wipers, and mirrors, tyres and wheels, and emissions, engine, and exhaust.
It can be, if the exact car has a clean history for windscreen, wipers, and mirrors, tyres and wheels, and emissions, engine, and exhaust.
Start with windscreen, wipers, and mirrors, tyres and wheels, and emissions, engine, and exhaust, then compare the car's mileage and recall record below.
Sources used: DVSA MOT tests (Apr 2026); vehicle recalls (Apr 2026); MOT fault wording (May 2025). MOT data does not capture every reliability issue, especially intermittent engine, gearbox or infotainment faults that do not appear during the test.
- 8.1% MOT failure rate
- Median tested mileage 32,012 miles
- 199 failed MOT tests analysed
Windscreen, wipers, and mirrors is the clearest area to check
Windscreen, wipers, and mirrors is the clearest named problem area in this model's MOT history (2.7 MOT notes per 100 tests). Example MOT phrases from this area include does not clear the windscreen effectively, items removed from drivers view prior to test, and damaged but not adversely affecting driver's view.
Example MOT phrases to search in the car's history:
- does not clear the windscreen effectively
- Items removed from drivers view prior to test
- damaged but not adversely affecting driver's view
- provides insufficient washer liquid
- Nail in tyre
- Wheel/tyre protruding beyond wheel arch
- leaking excessively from engine
- Lambda reading after 2nd fast idle outside specified limits
- ball joint excessively worn
- Play in steering rack inner joint(s)
Focus on windscreen, wipers, and mirrors, tyres and wheels, and emissions, engine, and exhaust
The model's recorded failure rate is 8.1%, -10.7 percentage points compared with the average across all models. Use the seller questions below to check whether repeat MOT notes have actually been repaired.
- MOT tests analysed2,472 tests
- Median tested mileage32,012 miles
- Failed MOT tests199
Should you buy a used BMW I8?
92.0% of the MOT tests we analysed for this model passed. The model's recorded failure rate is 8.1%, -10.7 percentage points compared with the average across all models. This is a buying brief for the exact car in front of you: clean repeat history matters more than badge reputation.
- Repeat unresolved MOT notes for windscreen, wipers, and mirrors, tyres and wheels, and emissions, engine, and exhaust
- windscreen, wipers, and mirrors appearing across more than one MOT
- Any dangerous MOT failure on the exact car, especially if the same area appears again later
- No paperwork showing applicable recall work has been completed
- A seller who cannot explain MOT wording such as "does not clear the windscreen effectively"
It can be, if the exact car has a clean history for windscreen, wipers, and mirrors, tyres and wheels, and emissions, engine, and exhaust.
Start with windscreen, wipers, and mirrors, tyres and wheels, and emissions, engine, and exhaust, then compare the car's mileage and recall record below.
Windscreen, wipers, and mirrors is the clearest named problem area in the MOT history (2.7 MOT notes per 100 tests). These counts are issue notes, not failure rates, because a single MOT can list several faults.
Past 100k miles on the BMW I8, MOT records most often point to emissions, engine, and exhaust and windscreen, wipers, and mirrors.
The MOT failure rate rises from 7.5% at 0-3 years to 8.5% at 6-10 years. Compare the car with the nearest age range before treating a fault as normal wear or a warning sign. The average MOT failure rate across all models in the same dataset is 18.7%.
Start with windscreen, wipers, and mirrors, tyres and wheels, emissions, engine, and exhaust, and suspension and steering. The checklist on this page explains why each area is being recommended, what to inspect, and what to ask the seller.
5 relevant recall notices appear for this model. Treat them as safety checks to verify for the exact car, not as normal MOT wear.
What should I check first?
Start with windscreen, wipers, and mirrors, tyres and wheels, emissions, engine, and exhaust, and suspension and steering. The checklist on this page explains why each area is being recommended, what to inspect, and what to ask the seller. Each item shows whether it comes from MOT results, recall notices, or a standard used-car check.
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Windscreen, wipers, and mirrors Seen in MOT results
Windscreen, wipers, and mirrors is one of the most common MOT problem areas for this model (2.7 MOT notes per 100 tests).
What to check: Check windscreen damage, wiper operation, washers, mirrors, and demisting.
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Tyres and wheels Seen in MOT results
Tyres and wheels is one of the most common MOT problem areas for this model (1.2 MOT notes per 100 tests).
What to check: Check tyre age, tread depth, sidewall damage, wheel condition, and alignment wear.
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Emissions, engine, and exhaust Seen in MOT results
Emissions, engine, and exhaust is one of the most common MOT problem areas for this model (0.6 MOT notes per 100 tests).
What to check: Check warning lights, smoke, exhaust leaks, recent emissions failures, and service history.
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Suspension and steering Seen in MOT results
Suspension and steering is one of the most common MOT problem areas for this model (0.6 MOT notes per 100 tests).
What to check: Listen for knocks, check uneven tyre wear, and inspect steering play.
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Corrosion and structure Seen in MOT results
Corrosion and structure is one of the most common MOT problem areas for this model (0.4 MOT notes per 100 tests).
What to check: Inspect sills, subframes, mounting points, arches, and underside corrosion advisories.
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Lights and electrical Seen in MOT results
Lights and electrical is one of the most common MOT problem areas for this model (0.4 MOT notes per 100 tests).
What to check: Check every lamp, warning light, horn, battery condition, and dashboard messages.
What changes with mileage?
Past 100k miles on the BMW I8, MOT records most often point to emissions, engine, and exhaust and windscreen, wipers, and mirrors.
Common MOT problem areas
Common faults: what usually fails on this model?
Windscreen, wipers, and mirrors is the clearest named problem area in the MOT history (2.7 MOT notes per 100 tests). These counts are issue notes, not failure rates, because a single MOT can list several faults.
Recall-related areas to verify
Official recall areas
Manufacturer recall notices for the BMW I8 mainly involve 5 areas: lights and electrical, emissions, engine, and exhaust, suspension and steering, and mixed recall notices. Treat each as something to verify on the specific car you are viewing; the recall table below shows the official notice text.
Mileage and age checks
Mileage changes: what starts showing up after high mileage?
Past 100k miles on the BMW I8, MOT records most often point to emissions, engine, and exhaust and windscreen, wipers, and mirrors. On lower-mileage cars, the most common named areas are windscreen, wipers, and mirrors, tyres and wheels, and corrosion and structure.
| Mileage range | Tests | Vehicles | Failure rate (vs all models) | Median mileage |
|---|---|---|---|---|
| 0-50k | 1,955 | 1,718 | 7.4%-3.5 percentage points vs all models | 26,772 miles |
| 50-100k | 494 | 420 | 11.1%-9.6 percentage points vs all models | 62,301 miles |
| 100-150k | 13 | 13 | 0.0%-26.2 percentage points vs all models | 105,775 miles |
| 150-200k | 1 | 1 | 0.0%-27.3 percentage points vs all models | 162,947 miles |
Problem areas by mileage
Past 100k miles on the BMW I8, MOT records most often point to emissions, engine, and exhaust and windscreen, wipers, and mirrors.
| Mileage range | Car areas most often recorded | Specific MOT defect examples |
|---|---|---|
| 0-50k |
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| 50-100k |
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| 100-150k |
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Fair comparisons: is this problem normal for its age?
The MOT failure rate rises from 7.5% at 0-3 years to 8.5% at 6-10 years. Compare the car with the nearest age range before treating a fault as normal wear or a warning sign. The average MOT failure rate across all models in the same dataset is 18.7%. The highest failure rate by age is 8.5% for 6-10 years cars, based on 1,551 tests.
| Age range | Tests | Vehicles | Failure rate (vs all models) | Median age |
|---|---|---|---|---|
| 0-3 years 2023–2026 reg. |
53 | 47 | 7.5%-0.9 percentage points vs all models | 3.0 years |
| 3-6 years 2020–2023 reg. |
868 | 754 | 7.4%-3.2 percentage points vs all models | 4.9 years |
| 6-10 years 2016–2020 reg. |
1,551 | 1,351 | 8.5%-8.2 percentage points vs all models | 7.8 years |
Recall records and data freshness
Recall context: are there safety notices to know about?
5 relevant recall notices appear for this model. Treat them as safety checks to verify for the exact car, not as normal MOT wear.
| 2020-12-14 | REMAINING PARTICLES IN THE CELLS OF THE HIGH VOLTAGE BATTERY CAN CAUSE A SHORT CIRCUIT A possibility of impurities contained in the HV batteries may cause short circuit. Testing of battery charge cycles and replacement of the HV cells where necessary. |
|---|---|
| 2020-04-03 | THE ELECTRIC MOTOR ELECTRONICS PRINTED CIRCUIT BOARD WAS NOT MANUFACTURED ACCORDING TO THE SPECIFICATIONS The Electric Motor Electronics (EME) printed circuit board was not manufactured according to specifications The Electric Motor Electronics (EME) of vehicles affected will be replaced. |
| 2017-01-10 | AIRBAGS MAY NOT DEPLOY The igniter for the certain airbag modules may not have been correctly manufactured which may affect air bag deployment in the event of a collision. Where necessary replace affected airbag modules. |
| 2015-12-03 | STEERING MAY NOT BEHAVE AS DESIGNED The engine current sensors have not been calibrated correctly which could lead to an increased recuperation torque during vehicle deceleration. An increased recuperation torque during deceleration could lead to a vehicle oversteer condition in the i3 and vehicle understeer condition in the i8. This could lead to skidding on slippery roads during driving. Recall the vehicles that are likely to be affected and calibrate sensors for measuring the engine current. |
| 2015-01-14 | FUEL MAY LEAK It is possible that lubricant contamination may result in the high current welding of the bolt for the fuel tank earth strap not being to specification. This could over time result in the fuel tank leaking. The driver will become aware of the leak either by the smell or dripping fuel after refuelling. Recall all affected vehicles and inspect the fuel tank. If necessary replace the fuel tank. |
Related searches
Common ways people look up the BMW I8. Each link runs the search and lands on the relevant section of this report.
Related reliability guides
See where this model sits against other BMW reports by MOT failure rate and common problem area.
Compare high-confidence model reports across all makes.
Use the fleet mileage baseline before checking this model's own mileage table.
Compare this model's age pattern with the wider MOT baseline.
Sources used: DVSA MOT tests (Apr 2026); vehicle recalls (Apr 2026); MOT fault wording (May 2025). These are patterns from many MOT tests and recall notices. They help you decide what to inspect and what to ask; they do not certify the condition of one specific car.