BMW 840i years to avoid and best years
There are not enough BMW 840i years yet to compare newer ones with older ones. 2024 has the most complaints per year, at 0 (0 complaints). The BMW 840i 2025 and 2026 model years are too early to compare: none has had 3 full years on the road yet.
Data as of .
2024
2025–26
BMW 840i reliability by year
Each year is complaints filed in that year’s first 3 years on the road, divided by however many of those years have passed. A model year younger than 3 years is too early to compare, so it is left out of the years named as having the fewest or the most complaints. Recalls are a separate count. The numbers are for the US-market BMW 840i. How we count.
By model year
| Year | Per year on the road | Complaints | Recalls | Most-filed complaint | Avg. combined MPG |
|---|---|---|---|---|---|
| 2026 Too early | 0 | 0 | 1 | — | 24 |
| 2025 Too early | 0 | 0 | 2 | — | 24 |
| 2024 Most | 0 | 0 | 2 | — | 24 |
| 2023 | 0 | 0 | 3 | — | 24 |
| 2022 | 0 | 0 | 2 | — | 24 |
| 2021 | 0 | 0 | 4 | — | 24 |
| 2020 → | 0 | 0 | 5 | — | 23.7 |
Years with a → link have a full model-year page.
Generations
- Body styles
- Coupe, Convertible, Gran Coupe
- Oil
- 0W-20 · 6.9 qt capacity
- Tire size
- 245/35R20, 245/40R19, 245/45R18, 275/30R20, 275/35R19, 275/40R18 (trim-dependent)
Known issues for this generation
NHTSA campaign 25V-644 recalls certain 2020–2025 BMW 840i vehicles (with 2020 340i and X6, 2020–2022 740Li, and 2019–2020 X5/X7 among others) because improper starting attempts can locally overheat the engine starter; if engine acoustic protection material is contaminated, that overheating can ignite it and, in rare cases, lead to a thermal event while driving or shortly after parking. Occupants may see or smell smoke. Dealers replace the starter with a redesigned unit free of charge. Vehicles previously repaired under related campaign 24V-576 are included and need the new hardware remedy. The Part 573 report lists about 12,456 potentially involved 840i vehicles within a multi-model total of about 145,102 units.
Frequently asked questions
Which BMW 840i year has the most owner complaints?
2024 has the most complaints per year, at 0 (0 complaints).
How do BMW 840i owner complaints compare by year?
There are not enough BMW 840i years yet to compare newer ones with older ones.
Which BMW 840i years are too early to compare?
The BMW 840i 2025 and 2026 model years are too early to compare: none has had 3 full years on the road yet.
What engine oil does a US BMW 840i use?
0W-20 With filter, about 6.9 qt is commonly listed for this generation—confirm in the owner manual.
What tire sizes fit a US BMW 840i?
Published US specs commonly list front 245/35R20, 245/40R19, 245/45R18, 275/30R20, 275/35R19, 275/40R18 (trim-dependent) and rear 245/35R20, 245/40R19, 245/45R18, 275/30R20, 275/35R19, 275/40R18 (trim-dependent); confirm on the door jamb placard for your trim.
What NHTSA recalls affect the US BMW 840i?
NHTSA campaign 25V-644 recalls certain 2020–2025 BMW 840i vehicles (with 2020 340i and X6, 2020–2022 740Li, and 2019–2020 X5/X7 among others) because improper starting attempts can locally overheat the engine starter; if engine acoustic protection material is contaminated, that overheating can ignite it and, in rare cases, lead to a thermal event while driving or shortly after parking. Occupants may see or smell smoke. Dealers replace the starter with a redesigned unit free of charge. Vehicles previously repaired under related campaign 24V-576 are included and need the…