The service and repair manual for the 2021 BMW M4 — 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 | Competition Coupe 2-Door · Base Coupe 2-Door |
| Federal record | 2 recalls · 1 complaints · 72 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 M4 manual
03 / ContentsSections in the manual
- Quick Lookups 62
- General Information 2,307
- Accessories & Equipment 4,825
- Heating, Ventilation & A/C (HVAC) 238
- Body & Frame 2,556
- Hybrid/Electric Powertrain 529
- Brakes 312
- Maintenance 32
- Collision 845
- Restraints 353
- Drivelines & Axles 421
- Steering 232
- Electrical 1,724
- Suspension 325
- Engine Mechanical 854
- Transmission 164
- Engine Performance 563
04 / Known issuesRecalls on federal record for the 2021 M4
- 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 1 complaints and BMW has issued 72 technical service bulletins for the 2021 M4. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 M4 manual
Is this manual specific to the 2021 M4?
Yes. It is the OEM manual matched to the 2021 model year, covering the 3.0L I6 across the Competition Coupe 2-Door, Base Coupe 2-Door trims. Specifications and procedure sequences are the ones BMW published for this year.
What 2021 M4 problems does it help with?
2 recalls are on federal record for the 2021 M4, 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 M4 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 M4 years and 2021 BMW models
2024 M4 · 2023 M4 · 2022 M4 · 2020 M4 · 2019 M4 · 2018 M4 · 2017 M4 · 2016 M4 · 2015 M4 · all 10 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