The service and repair manual for the 2021 BMW M3 — 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 | 2021 |
|---|---|
| Engines | 3.0L I6 — 183 cu in, DOHC, turbocharged |
| Trims | Base Sedan 4-Door · Competition Sedan 4-Door |
| Federal record | 3 recalls · 5 complaints · 64 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 M3 manual
03 / ContentsSections in the manual
- Quick Lookups 55
- Engine Performance 436
- Accessories & Equipment 3,316
- General Information 2,372
- Body & Frame 1,827
- Heating, Ventilation & A/C (HVAC) 264
- Brakes 201
- Maintenance 114
- Collision 1,365
- Restraints 277
- Drivelines & Axles 528
- Steering 331
- Electrical 1,038
- Suspension 466
- Engine Mechanical 1,018
- Transmission 340
04 / Known issuesRecalls on federal record for the 2021 M3
- Seat Belts — front › buckle assembly · 21V298000An improperly installed seat belt assembly may not restrain an occupant as expected, increasing the.
- Seat Belts · 21V554000During a crash, a seat belt retractor that does not function as intended increases the risk of injur.
- 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 64 technical service bulletins for the 2021 M3. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 M3 manual
Is this manual specific to the 2021 M3?
Yes. It is the OEM manual matched to the 2021 model year, covering the 3.0L I6 across the Base Sedan 4-Door, Competition Sedan 4-Door trims. Specifications and procedure sequences are the ones BMW published for this year.
What 2021 M3 problems does it help with?
3 recalls are on federal record for the 2021 M3, covering seat belts, service brakes, hydraulic. 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 2021 M3 wiring diagrams?
Yes — the complete wiring diagrams for the 2021 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 M3 years and 2021 BMW models
2024 M3 · 2023 M3 · 2022 M3 · 2018 M3 · 2017 M3 · 2016 M3 · 2015 M3 · all 30 years
2021 BMW 118i · 2021 BMW 120i · 2021 BMW 220i · 2021 BMW 228i Gran Coupe · 2021 BMW 228i xDrive Gran Coupe · 2021 BMW 230i · 2021 BMW 230i xDrive · 2021 BMW 320i · 2021 BMW 330e · 2021 BMW 330e xDrive · 2021 BMW 330i · 2021 BMW 330i xDrive · every 2021 model