BMWM8 Gran Coupe2021Overview/bmw/m8-gran-coupe/2021/base/

2021 BMW M8 Gran Coupe

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 M8 Gran Coupe.

Transmission Automatic (S8)

The 2021 BMW M8 Gran Coupe is a model-year entry in the M8 Gran Coupe line, carrying an automatic (S8) transmission, EPA fuel-economy ratings of 15/21/17 mpg city/highway/combined, and an engine oil service capacity of 10.5 quarts using 0W-30 viscosity. Those transmission, efficiency, and fluid specifications define the routine operational profile for this model year. Within the 2020–2023 model complaint history, the 2021 falls in a window where the 2020 model year registers both the highest and lowest complaint count at five. That means the available complaint record is extremely limited and provides little basis for drawing broader reliability conclusions.

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity10.5 qtOEM · verified
Engine oil type0W-30OEM · verified
Lug nut torque103 ft-lbsOEM · verified
EPA fuel economy15/21/17 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses OE oil filter 11427848321. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Tire size275/35ZR20/XL (102Y), Rear: 285/35ZR20/XL (104Y)OEM · verified
Wheel / rim9.5, Rear: 10.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter11427848321
Engine air filter13717852382 alt 13717852380
Spark plug12120054451
Battery61217908325
Front wiper blades61619478909
Thermostat11538632664 alt 11537586885
Cabin air filter64115A1BDB6 alt 64115A29D99

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S8)

Dimensions & weight NHTSA vPIC

Overall length200 in
Overall width76 in
Overall height55.1 in
Wheelbase119.3 in
Curb weight4489 lb
Track (front / rear)64.2 / 65.7 in
Weight distribution (front / rear)54/46

Ratings & economy EPA / vPIC

EPA city / highway / combined15 / 21 / 17 mpg
DrivetrainAll-Wheel Drive
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 10.5 qt of 0W-30 engine oil, DOT 4 brake fluid. Torque lug nuts to 103 ft-lbs. The firing order is 1-5-4-8-6-3-7-2.

Lubricants & capacities

Brake FluidDOT 4
Clutch FluidDOT 4
Engine Oil0W-30
Engine Oil Capacity10.5 qt
Power Steering FluidATF

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs88.0 inch lbs. ft-lbs
Cylinder Head InstructionsOnly use new bolts.
Engine Flywheel BoltsUse new bolts. 88.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs18.0 ft-lbs

Chassis torques

Differential Fill PlugFront: 44.0 ft-lbs; Rear: 33.0 ft-lbs
Differential drain PlugFront: 44.0 ft-lbs; Rear: 33.0 ft-lbs
Lug Nuts103 ft-lbs

Ignition

Cylinder Firing Order1-5-4-8-6-3-7-2

Battery & A/C

RefrigerantR1234yf
Oil GroupPAG
Oil Type46YF

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 1 stages
122.0 ft. lbs., Step 2: 90°, Step 3: 140°22 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1M6 Screw7.4 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 1,200 mi.

At 1,200 miDrive Axle Assembly (drain & refill) · Engine Oil (drain & refill) · Engine Oil Filter (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

2
Open recalls
NHTSA campaigns
130
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
0
Owner complaints
0 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

No owner complaints on record with NHTSA for this vehicle.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 130 bulletins on record with NHTSA.

BulletinDateComponentSummary
B0117242024-12-10Fuel/Propulsion Systemthe Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying…
B1703242024-04-15Engine And Engine CoolingBMW AG has issued a Delivery Stop (effective April 15, 2024) on certain Model Year 2018…
B5108192024-01-16Electrical SystemThe basic conditions for initializing the power windows are not met.
B6113052024-01-11Electrical SystemThe electrical system of BMW vehicles has been subject to an ongoing development process…
B3601212024-01-08SteeringAt low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific M8 Gran Coupe. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2021 M8 Gran Coupe take?

10.5 qt of BMW LongLife LL-01FE 0W-30 is recommended., per the factory manual.

Does the 2021 M8 Gran Coupe have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the M8 Gran Coupe get?

EPA figures are 15 city / 21 highway / 17 combined mpg.