2021 BMW M4 maintenance schedule
Every service on the 2021 M4, with its interval and an estimated cost.
Checked against the manufacturer's service schedule · Reviewed Oct 1, 2026 · 4 sources
The 2021 BMW M4 oil change interval is every 10,000 mi or 12 months, whichever comes first. Condition Based Service: change when the service display calls for it, at most 10,000 miles or 12 months. First change at the 1,200-mile running-in (break-in) service.
- Brake Fluid
- 24mo
- Cabin Air Filter
- 20,000mi
- ≈ 32,000km
- Engine Air Filter
- 30,000mi
- ≈ 48,000km
- Spark Plugs
- 30,000mi
- ≈ 48,000km
Service intervals
From the 2021 BMW M4 schedule.
| Service | Every | Status |
|---|---|---|
| Engine Oil & FilterSafety itemCondition Based Service: change when the service display calls for it, at most 10,000 miles or 12 months. First change at the 1,200-mile running-in (break-in) service.Guide How to Change Your Oil · The engine oil system: what every part does | 10,000 mi / 12 mo≈ 16,000 km / 12 mo | |
| Cabin Air FilterReplace the ventilation microfilter at every 2nd engine oil service (approx. 20,000 mi).Guide How to Replace Your Cabin Air Filter | 20,000 mi≈ 32,000 km | |
| Engine Air FilterReplace the air filter element at every 3rd engine oil service (approx. 30,000 mi); more often in dusty conditions.Guide How to Replace Your Air Filter (Engine & Cabin) | 30,000 mi≈ 48,000 km | |
| Spark PlugsReplace at every 3rd engine oil service (approx. 30,000 mi).Guide How to Change Spark Plugs · How to Choose and Use a Torque Wrench | 30,000 mi≈ 48,000 km | |
| Rear Differential FluidChange at the 1,200-mile running-in service, then at every 5th engine oil service (approx. 50,000 mi).Guide How to Change Differential Fluid (Rear Axle and Front 4x4) | 50,000 mi≈ 80,000 km | |
| Brake FluidSafety itemTime-based only: replace when the CBS display shows brake fluid due; BMW's CBS interval is 24 months after each change (the first may be counted from the production date).Guide How to Bleed Brakes (and Change Brake Fluid) | 24 mo | |
| Brake InspectionInspect only. Pads are monitored by CBS; replace when displayed and check discs. Optional M Carbon Ceramic brakes: visually check disc wear using the surface wear indicators.Guide How to Change Brake Pads: Step-by-Step Guide | As needed | |
| Engine CoolantNo scheduled replacement: long-term rated coolant, changed only for system repairs; level and concentration are checked at each vehicle check.Guide How to Flush Your Coolant System | As needed | |
| Automatic Transmission FluidNo scheduled replacement: the 8-speed M Steptronic is factory-filled with long-term rated fluid, changed only for repairs.Guide How to Change Transmission Fluid | As needed | |
| Manual Transmission FluidNo scheduled replacement: the 6-speed manual is factory-filled with long-term rated fluid, changed only for repairs. | As needed |
≈ converted from the other unit and rounded.
Common questions about the 2021 BMW M4
How often does a 2021 BMW M4 need an oil change?
The 2021 BMW M4 oil change interval is every 10,000 mi or 12 months, whichever comes first. Condition Based Service: change when the service display calls for it, at most 10,000 miles or 12 months. First change at the 1,200-mile running-in (break-in) service.
What maintenance does a 2021 BMW M4 need?
The services not to skip on a 2021 BMW M4: engine oil & filter every 10,000 mi / 12 mo; brake fluid every 24 mo. The table above lists every service with its interval and an estimated cost.
Sources
- BMW NA 2021 BMW Maintenance booklet (all models)
- BMW NA service bulletin filed with NHTSA (MC-10147240), CBS option codes 8KC/8KL
- BMW NA SI B01 06 13 'CBS: Mileage and Time-based Maintenance Services Intervals', filed with NHTSA (MC-10150250)
- BMW NA SI B34 07 13 'Brake Fluid Maintenance Service: 36-Month Interval', filed with NHTSA (MC-10150037)
Intervals vary by market, engine and driving conditions; your owner's manual is the authority for your car.