The service and repair manual for the 2020 BMW 840i — the 3.0L I6 engine, 2 trims. Matched to this exact model year, so the specifications and sequences are the ones BMW published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2020 |
|---|---|
| Engines | 3.0L I6 — 183 cu in, DOHC, turbocharged |
| Trims | Base Convertible 2-Door · Base Coupe 2-Door |
| Other 2020 840i variants | 840i Gran Coupe → · 840i xDrive → · 840i xDrive Gran Coupe → |
| Federal record | 4 recalls · 5 complaints · 173 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2020 840i manual
03 / ContentsSections in the manual
- Quick Lookups 55
- Engine Performance 1,235
- Accessories & Equipment 6,780
- General Information 2,633
- Body & Frame 3,647
- Heating, Ventilation & A/C (HVAC) 434
- Brakes 351
- Hybrid/Electric Powertrain 792
- Collision 850
- Restraints 288
- Drivelines & Axles 1,324
- Steering 584
- Electrical 2,607
- Suspension 1,083
- Engine Mechanical 2,507
- Transmission 311
04 / Known issuesRecalls on federal record for the 2020 840i
- Electrical System — starter assembly · 25V644000An overheated starter motor can ignite nearby combustible material in the engine compartment, increa.
- Seat Belts — front › buckle assembly · 20V164000If the air bag and/or seat belt pretensioners deploy improperly in the event of a crash, there is an.
- Back Over Prevention — sensing system › camera · 21V096000If the driver relies on only the rearview camera image, the missing or reduced rearview image view c.
- Service Brakes, Hydraulic · 21V062000A loss of abs and a reduction in braking assistance can increase the risk of a crash.
Owners have filed 5 complaints and BMW has issued 173 technical service bulletins for the 2020 840i. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2020 840i manual
Is this manual specific to the 2020 840i?
Yes. It is the OEM manual matched to the 2020 model year, covering the 3.0L I6 across the Base Convertible 2-Door, Base Coupe 2-Door trims. Specifications and procedure sequences are the ones BMW published for this year.
What 2020 840i problems does it help with?
4 recalls are on federal record for the 2020 840i, covering electrical system, seat belts, back over prevention. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by BMW dealers.
Does it include 2020 840i wiring diagrams?
Yes — the complete wiring diagrams for the 2020 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $40.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther 840i years and 2020 BMW models
2024 840i · 2023 840i · 2022 840i · 2021 840i · all 5 years
2020 BMW 118i · 2020 BMW 120i · 2020 BMW 220i · 2020 BMW 228i xDrive Gran Coupe · 2020 BMW 230i · 2020 BMW 230i xDrive · 2020 BMW 320i · 2020 BMW 330e · 2020 BMW 330i · 2020 BMW 330i xDrive · 2020 BMW 420i · 2020 BMW 420i Gran Coupe · every 2020 model