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2018 BMW

640i xDrive Gran Turismo

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

BMW 640i: best and worst years
2018 BMW 640i xDrive Gran Turismo (photo 1 of 3)

Closest available photo (2017 model year); you're viewing the 2018.

2017 photoTokumeigakarinoaoshimaCC BY-SA 4.0Wikimedia Commons

Overview

Body
Large 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

HP
335
Power to weight
0.077 hp/lb
Axle ratio
3.08
Cyl
6EPA, 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
28 mpgEPA, from EPA, last updated 6/22/2026
MPG City
20 mpgEPA, from EPA, last updated 6/22/2026
MPG Comb
23 mpgEPA, from EPA, last updated 6/22/2026
Fuel $/yr
$3,350EPA, from EPA, last updated 6/22/2026
CO₂
388 g/miEPA, from EPA, last updated 6/22/2026
Eco Score
5/10EPA, from EPA, last updated 6/22/2026
Smog score
5/10
Elec. Range
0 miEPA, from EPA, last updated 6/22/2026
SmartWay certified
No

Dimensions & capacity

Length
197 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Width
74 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Height
55 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Wheelbase
117 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Curb Weight
4,330 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Safety NHTSA, model year

Stability control (ESC)
Standard
Forward-collision warning
Optional
Lane-departure warning
Optional
Recalls
0
Owner complaints
0

Federal investigations NHTSA defect investigations, model year

  • EA21002Openopened Sep 17, 2021AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

    Desiccated Air Bag Inflator Rupture

Known issues manufacturer service bulletins, model year

164 service bulletins filed with NHTSA for this model year

  • Feb 11, 2026ELECTRICAL SYSTEMB720125

    A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. If the situation is currently present, sit in the seat and move the seat to a slightly different position. The POL (Passenger Occupancy Light) light should now function correctly. In some cases, the Air bag Warning Light was illuminated, and the following Advanced Crash Safety Module (ACSM) fault is stored: 930A1C - Front pas

  • May 2, 2024ENGINEB010324

    EVAP SYSTEM PURGE (VENT) VALVE EXT LTD WTY (ELW) 15/150

  • Mar 14, 2024EXTERIOR LIGHTINGB630418

    One or more of the LED daytime running lights are dim or discolored.

  • Mar 4, 2024ENGINE AND ENGINE COOLINGB120721

    Check Control message (CCM) indicates: (ID 213): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 - Starter alternator / belt for 48V system (OSA_RIEMEN_RISS): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine compartment. Smoke formation in the area of the belt drive. Drive belt damage

  • Jan 16, 2024ELECTRICAL SYSTEMB510819

    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 “discharged battery” complaints.

  • Jan 5, 2024EQUIPMENT:ELECTRICAL:INFOTAINMENTB610524

    The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 – “HU-H: Reset” will 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 “large leak,” after confirming that the fuel filler cap is fitted properly, then, proceed

  • and 156 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.