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2024 BMW

840i xDrive Gran Coupe

Auto (S8), 6 cyl, 3.0 L, Turbo

BMW 840i: best and worst years
2024 BMW 840i xDrive Gran Coupe
2024 photoCharles from Port Chester, New YorkCC BY 2.0Wikimedia Commons

Overview

Body
Midsize CarsEPA, from EPA, last updated 6/11/2026
Drivetrain
All-Wheel DriveEPA, from EPA, last updated 6/11/2026
Transmission
Automatic (S8)EPA, from EPA, last updated 6/11/2026
Powertrain
GasEPA, from EPA, last updated 6/11/2026
Fuel
PremiumEPA, from EPA, last updated 6/11/2026

Engine & performance

Cyl
6EPA, from EPA, last updated 6/11/2026
Aspiration
TurbochargedEPA, from EPA, last updated 6/11/2026
Start-stop system
YesEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy
29 mpgEPA, from EPA, last updated 6/11/2026
MPG City
21 mpgEPA, from EPA, last updated 6/11/2026
MPG Comb
24 mpgEPA, from EPA, last updated 6/11/2026
Fuel $/yr
$3,200EPA, from EPA, last updated 6/11/2026
CO₂
373 g/miEPA, from EPA, last updated 6/11/2026
Eco Score
5/10EPA, from EPA, last updated 6/11/2026
Smog score
3/10
Elec. Range
0 miEPA, from EPA, last updated 6/11/2026
SmartWay certified
No

Dimensions & capacity

Pass. Vol
100 ft³EPA, from EPA, last updated 6/11/2026
Cargo Vol
16 ft³EPA, from EPA, last updated 6/11/2026

Safety NHTSA, model year

Stability control (ESC)
Standard
Forward-collision warning
No
Lane-departure warning
No
Recalls
0
Owner complaints
0

Known issues manufacturer service bulletins, model year

18 service bulletins filed with NHTSA for this model year

  • May 6, 2026ENGINEB010126

    The EVAP systems purge (vent) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in-service / delivery date.

  • Aug 21, 2025SEATSB521125

    If the seat ventilation is deactivated via the switch or due to parking the vehicle, the fans in the seat cushionor under the seat cushion surface are unpleasantly loud. The fans speed up loudly twice and then turn off. The functionality of the fans is not impaired. This behavior only occurs after the vehicle had been programmed to I level S18A- 25-07-520 and higher; upto, but not including S18A- 25-07-551.

  • Feb 3, 2025STRUCTURE:BODYB514616

    Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.

  • Jan 22, 2025SEATSB060425

    FITTINGS RETURN

  • Jan 10, 2025SUSPENSIONB370125

    DELIVERY STOP: SUSPENSION STRUT HOLDER

  • Nov 4, 2024ELECTRICAL SYSTEMB512724

    The Ethernet bus of the Body Domain Controller (BDC) is interrupted so that audio output, rear viewcamera, or the driver assistance systems fail. The symptoms begin to appear during auto locking at approx.10 mph, or after the Central Locking button is activated. Dependent upon vehicle equipment, the following permanent SAE faults may be stored in the vehicle: S 0219, No Communication possible with: Amplifier S 0261, No Communication possible with: Camera-based driver assistance S 0273, No Commun

  • Oct 22, 2024UNKNOWN OR OTHERB511524

    During supplier production, the passenger sunvisor shaft may not have been fully pressed into the socket (arrow).

  • Jul 29, 2024ENGINEB511219

    A check control message or MIL (Malfunction Indicator Lamp) may be illuminated, with one or more of thefollowing faults stored: 138207 - Active cooling damper control (AKKS), top: blockage at warm ambient temperature 21B043 - Active cooling damper control (AKKS), top: blockage at all ambient temperatures 138222 - Active cooling damper control (AKKS), above: positional deviation error detected at warm ambienttemperature 138209 - Active cooling damper control (AKKS), top: Control deviation at all

  • and 10 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.