2021 BMW
M8 Convertible
Auto (S8), 8 cyl, 4.4 L, Turbo

Closest available photo (2019 model year); you're viewing the 2021.
Overview
- Body
- Subcompact CarsEPA, from EPA, last updated 6/22/2026
- Drivetrain
- All-Wheel DriveEPA, from EPA, last updated 6/22/2026
- Transmission
- Automatic (S8)EPA, from EPA, last updated 6/22/2026
- Powertrain
- GasEPA, from EPA, last updated 6/22/2026
- Fuel
- PremiumEPA, from EPA, last updated 6/22/2026
Engine & performance
- Cyl
- 8EPA, from EPA, last updated 6/22/2026
- Aspiration
- TurbochargedEPA, from EPA, last updated 6/22/2026
- Start-stop system
- YesEPA, from EPA, last updated 6/22/2026
Efficiency
- MPG Hwy
- 21 mpgEPA, from EPA, last updated 6/22/2026
- MPG City
- 15 mpgEPA, from EPA, last updated 6/22/2026
- MPG Comb
- 17 mpgEPA, from EPA, last updated 6/22/2026
- Fuel $/yr
- $4,550EPA, from EPA, last updated 6/22/2026
- CO₂
- 520 g/miEPA, from EPA, last updated 6/22/2026
- Eco Score
- 3/10EPA, from EPA, last updated 6/22/2026
- Smog score
- 3/10
- Elec. Range
- 0 miEPA, from EPA, last updated 6/22/2026
- SmartWay certified
- No
Dimensions & capacity
- Length
- 191 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
- Width
- 75 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
- Height
- 53 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
- Wheelbase
- 111 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
- Curb Weight
- 4,489 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Safety NHTSA, model year
- Recalls
- 2
- Owner complaints
- 0
Known issues manufacturer service bulletins, model year
94 service bulletins filed with NHTSA for this model year
Dec 10, 2024FUEL/PROPULSION SYSTEMB011724
the Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying repairs for the required replacement of one or more the fuel injectors which were determined to have failed due to a buildup of external corrosion in the engine’s center fuel injector bore area that resulted after this location was periodically contaminated by engine coolant residue over time. This special program’s coverage is 15 years / 150,000 miles as determined from the vehicle's original in-service / first d
Apr 15, 2024ENGINE AND ENGINE COOLINGB170324
BMW AG has issued a Delivery Stop (effective April 15, 2024) on certain Model Year 2018 - 2023 BMW vehicles that were produced between November 7, 2017, and September 9, 2022.
Jan 16, 2024VISIBILITY:POWER WINDOW DEVICES AND CONTROLSB510819
The basic conditions for initializing the power windows are not met.
Jan 11, 2024ELECTRICAL SYSTEMB611305
The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle âÂÂdischarged batteryâ complaints.
Jan 8, 2024STEERINGB360121
At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking, maneuvering)with a large steering angle, the front end can be slightly axially misaligned. This can be felt (jerking)/ heard via an acoustic acknowledgement (clunk) as seen at the 11 second mark of the video. See attached video V36 01 21.
Jan 5, 2024EQUIPMENT:ELECTRICAL:INFOTAINMENTB610524
The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 ÃÂâÃÂÃÂÃÂàÃÂâÃÂÃÂÃÂÃÂHU-H: ResetÃÂâÃÂÃÂÃÂàwill be stored in the HU-H3.
Jan 5, 2024FUEL SYSTEM, GASOLINEB160123
A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system(NVLD natural vacuum leak detection). For this condition, the following fault is stored in the DME: 190302 - fuel tank ventilation and scavenging air system, micro-leak: leakage more than 0.5mm For: Model vehicles other that the ones listed above, or for EVAP faults related to a âÃÂÃÂlarge leak,âÃÂàafter confirming that the fuel filler cap is fitted properly, then, proceed
Jan 4, 2024STEERINGB320223
SITUATION Unusual noises occur only when operating the steering column in the axial direction. 1. A one-time thump sound at the start of movement Shortly after the steering column starts moving, retracting, or extending, a one-time thump noise is heard. See attached video V32 03 23 2. Humming noise while steering column extends in the axial direction. The sound is only heard when the steering column is extended, not when the steering column is retracted. When the steering column starts to
- and 86 more
Source: NHTSA manufacturer communications (technical service bulletins).
Warranty manufacturer terms, by make
- Basic
- 4 yr / 50k mi
- Powertrain
- 4 yr / 50k mi
- Roadside assistance
- 4 yr
- Maintenance
- 3 yr / 36k mi
- EV battery
- 8 yr / 100k mi
Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.