The service and repair manual for the 2020 BMW M340i — the 3.0L I6 engine, 1 trim. 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 Sedan 4-Door |
| Other 2020 M340i variants | M340i xDrive → |
| Federal record | 9 recalls · 60 complaints · 251 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2020 M340i manual
03 / ContentsSections in the manual
- Quick Lookups 55
- Engine Performance 1,853
- Accessories & Equipment 4,321
- General Information 2,454
- Body & Frame 2,467
- Heating, Ventilation & A/C (HVAC) 356
- Brakes 163
- Hybrid/Electric Powertrain 661
- Collision 1,084
- Restraints 147
- Drivelines & Axles 666
- Steering 399
- Electrical 2,173
- Suspension 674
- Engine Mechanical 3,136
- Transmission 266
04 / Known issuesRecalls on federal record for the 2020 M340i
- Seats · 23V211000An improperly welded seat frame may not properly restrain the occupant during a crash, increasing th.
- Back Over Prevention — sensing system › camera · 19V684000The lack of an image in the back-up camera display increases the risk of a crash.
- Structure — body › trunk lid · 19V755000If a person were inside the trunk compartment, they may not be able to get out, increasing their ris.
- 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.
- Seat Belts · 23V584000An audible chime that does not properly alert the driver to fasten their seat belt increases the ris.
- Steering — linkages › tie rod assembly · 20V355000A damaged or fractured tie rod may affect vehicle handling and control, increasing the risk of a cra.
- Seats · 19V600000If the headrest folds down in a crash, there would be an increased risk of injury.
- Engine · 21V598000Loss of braking assist can increase the risk of a crash.
Owners have filed 60 complaints and BMW has issued 251 technical service bulletins for the 2020 M340i. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2020 M340i manual
Is this manual specific to the 2020 M340i?
Yes. It is the OEM manual matched to the 2020 model year, covering the 3.0L I6 across the Base Sedan 4-Door trims. Specifications and procedure sequences are the ones BMW published for this year.
What 2020 M340i problems does it help with?
9 recalls are on federal record for the 2020 M340i, covering seats, back over prevention, structure. 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 M340i 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 M340i years and 2020 BMW models
2024 M340i · 2023 M340i · 2022 M340i · 2021 M340i · 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