Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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2021 BMW M8 Gran Coupe Base
Repair and Diagnosis
2021 BMW M8 Gran Coupe BaseSECTION Repair and Diagnosis
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Quick Lookups- Accessories & Equipment
- Anti-Theft Systems
- Collision/Avoidance
- Communication Devices
- Cruise Control Systems
- Drivers Assistance Systems - ADAS
- Entertainment Systems
- Exterior Lights
- Gauges & Instrument Panels
- Headlights
- Infotainment
- Audio, Navigation, Anti-Theft, Airbag Control -- Repair (F91, F92 & F93)
- Audio, Navigation, Anti-Theft, Airbag Control -- Tightening Torques (F91, F92 & F93)
- Communication Systems -- Repair (F91, F92 & F93)
- Communication Systems -- Tightening Torques (F91, F92 & F93)
- General Electrical System -- Repair (F91, F92 & F93)
- General Electrical System -- Tightening Torques (F91, F92 & F93)
- Interior/Exterior Trim
- Interior/Illumination Lights
- Mirrors
- Seats
- Steering Column Switches
- Warning Systems
- Window Motors & Regulators
- Wiper/Washer Systems
- Body & Frame
- Door Locks
- Exterior Body Panels
- Collision - Body Dimensions And Torque Specifications (F91, F92 & F93)
- Collision - Body Panel Repair (1 Of 2) (F91, F92 & F93)
- Collision - Body Panel Repair (2 Of 2) (F91, F92 & F93)
- Collision - General Information (F91, F92 & F93)
- Collision - Paint Information (F91, F92 & F93)
- Technical Data -- (F91, F92 & F93)
- Exterior/Interior Trim
- Mirrors
- Seats
- Sun Roof/T-Top/Convertible Top
- Body Equipment -- Repair (F91, F92 & F93) (1 Of 2)
- Body Equipment -- Tightening Torques (F91, F92 & F93)
- Electrical Drives -- Repair (F91, F92 & F93)
- Electrical Drives -- Tightening Torques (F91, F92 & F93)
- General Electrical System -- Repair (F91, F92 & F93)
- Sunroof And Convertible Top -- Repair (F91, F92 & F93)
- Sunroof And Convertible Top -- Tightening Torques (F91, F92 & F93)
- Towing Systems
- Windows
- Brakes
- Collision
- Drivelines & Axles
- Electrical
- Engine Mechanical
- Accessory Drive Belts
- Blowers, Superchargers & Turbochargers
- Cooling Fan
- Cooling System (Mechanical)
- Exhaust
- Fuel System
- Crankcase Ventilation System -- Repair (F91, F92 & F93)
- Engine -- Tightening Torques (F91, F92 & F93)
- Fuel Supply System -- Repair (F91, F92 & F93)
- Fuel Supply System -- Tightening Torques (F91, F92 & F93)
- Fuel System -- Repair (F91, F92 & F93)
- Fuel System -- Tightening Torques (F91, F92 & F93)
- Oxygen Sensors -- Repair (F91, F92 & F93)
- Technical Data -- (F91, F92 & F93)
- Lubrication System
- Cooling System -- Repair (F91, F92 & F93)
- Cooling System -- Tightening Torques (F91, F92 & F93)
- Engine -- Tightening Torques (F91, F92 & F93)
- Engine Electrical System -- Repair (F91, F92 & F93)
- Engine Electrical System -- Tightening Torques (F91, F92 & F93)
- Engine Oil Filter & Turbocharger Oil Lines -- Repair (F91, F92 & F93)
- Engine Oil Pan -- Repair (F91, F92 & F93)
- Engine Oil Pressure Check -- Repair (F91, F92 & F93)
- Engine Oil Pump -- Repair (F91, F92 & F93)
- Technical Data -- (F91, F92 & F93)
- Mechanical
- Accessory Drive Belt & TENSIONER -- Repair (F91, F92 & F93)
- Camshafts -- Repair (F91, F92 & F93)
- Coolant Lines & Heat Management Module -- Repair (F91, F92 & F93)
- Crankcase Ventilation System -- Repair (F91, F92 & F93)
- Crankshaft -- Repair (F91, F92 & F93)
- Crankshaft Seal & Timing Case Cover -- Repair (F91, F92 & F93)
- Cylinder Head -- Repair (F91, F92 & F93) (1 Of 2)
- Cylinder Head -- Repair (F91, F92 & F93) (2 Of 2)
- Engine -- Tightening Torques (F91, F92 & F93)
- Engine And Transmission Mounting -- Repair (F91, F92 & F93)
- Engine And Transmission Mounting -- Tightening Torques (F91, F92 & F93)
- Engine Assembly -- Repair (F91, F92 & F93)
- Engine Oil Filter & Turbocharger Oil Lines -- Repair (F91, F92 & F93)
- Engine Oil Pan -- Repair (F91, F92 & F93)
- Engine Oil Pressure Check -- Repair (F91, F92 & F93)
- Engine Oil Pump -- Repair (F91, F92 & F93)
- Engine Vacuum Pump -- Repair (F91, F92 & F93)
- Engine Vibration Damper -- Repair (F91, F92 & F93)
- Flywheel -- Repair (F91, F92 & F93)
- Intake Plenum -- Repair (F91, F92 & F93)
- Intake/Exhaust Valves & Valve Stem Seals -- Repair (F91, F92 & F93)
- Mechanical Special Tools -- (F91, F92 & F93)
- Pistons & Piston Rings -- Repair (F91, F92 & F93)
- Rocker Arms -- Repair (F91, F92 & F93)
- Technical Data -- (F91, F92 & F93)
- Turbocharger -- Repair (F91, F92 & F93)
- Variable Camshaft Timing Control System -- Repair (F91, F92 & F93) (1 Of 2)
- Variable Camshaft Timing Control System -- Repair (F91, F92 & F93) (2 Of 2)
- Variable Valve Lift Control System -- Repair (F91, F92 & F93)
- Water Pump -- Repair (F91, F92 & F93)
- Starter
- Engine Performance
- Emissions
- Engine Control Systems
- Crankcase Ventilation System -- Repair (F91, F92 & F93)
- Engine -- Tightening Torques (F91, F92 & F93)
- Engine Electrical System -- Repair (F91, F92 & F93)
- Engine Electrical System -- Tightening Torques (F91, F92 & F93)
- Engine Vacuum Pump -- Repair (F91, F92 & F93)
- Fuel System -- Repair (F91, F92 & F93)
- General Electrical System -- Repair (F91, F92 & F93)
- Oxygen Sensors -- Repair (F91, F92 & F93)
- Pedals -- Repair (F91, F92 & F93)
- Pedals -- Tightening Torques (F91, F92 & F93)
- Variable Camshaft Timing Control System -- Repair (F91, F92 & F93) (1 Of 2)
- Variable Camshaft Timing Control System -- Repair (F91, F92 & F93) (2 Of 2)
- Variable Valve Lift Control System -- Repair (F91, F92 & F93)
- Fuel Delivery
- Crankcase Ventilation System -- Repair (F91, F92 & F93)
- Engine -- Tightening Torques (F91, F92 & F93)
- Fuel Supply System -- Repair (F91, F92 & F93)
- Fuel Supply System -- Tightening Torques (F91, F92 & F93)
- Fuel System -- Repair (F91, F92 & F93)
- Fuel System -- Tightening Torques (F91, F92 & F93)
- Oxygen Sensors -- Repair (F91, F92 & F93)
- Technical Data -- (F91, F92 & F93)
- Ignition System
- Specifications
- Tune-Up
- General Information
- Abbreviations
- Basic Trouble Shooting
- Brakes
- Check Lists
- Driveline/Axles
- Electrical
- Engine
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- Waveforms - Injector Pattern Tutorial - General Information
- Map - Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Identification
- Metric Conversions
- OEM General Information
- Body, Accessories & Equipment Special Tools -- (F91, F92 & F93)
- Gear Shift Mechanism -- Tightening Torques (F91, F92 & F93)
- General Orphan Data (1 Of 3)
- General Orphan Data (2 Of 3)
- General Orphan Data (3 Of 3)
- Maintenance And General Information -- Repair (F91, F92 & F93)
- Maintenance And General Information -- Tightening Torques (F91, F92 & F93)
- Mechanical Special Tools -- (F91, F92 & F93)
- Maintenance Reminder Light (Reset Procedures)
- Specifications Index
- Steering
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- Maintenance
- Restraints
- Steering
- Suspension
- Transmission
- Automatic Trans
- Automatic Transmission -- Repair (F91, F92 & F93)
- Automatic Transmission -- Tightening Torques (F91, F92 & F93)
- Cooling System -- Repair (F91, F92 & F93)
- Cooling System -- Tightening Torques (F91, F92 & F93)
- Engine And Transmission Mounting -- Repair (F91, F92 & F93)
- Engine And Transmission Mounting -- Tightening Torques (F91, F92 & F93)
- Gear Shift Mechanism - Operating Fluids
- Clutch - Operating Fluids
- Manual Trans
- Transfer Case
- Transmission Control Systems
- Automatic Trans
- External Pages
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.