Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2015 640i xDrive.
The 2015 BMW 640i xDrive is a passenger car equipped with an eight-speed automatic transmission that delivers EPA-estimated fuel economy of 20 mpg city, 29 mpg highway, and 23 mpg combined, while the engine requires 6.8 quarts of oil within viscosities of 0W-30, 0W-40, or 5W-30 for proper maintenance, placing it within a model generation that accumulated only four owner complaints—primarily concerning wheels—and one recall during this production year, indicating a relatively stable reliability profile for researchers evaluating ownership outcomes within this vehicle class.
Fluid capacities, tune-up values and fuel economy at a glance.
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI 95R · 950 CCA battery, OE oil filter 11428683168. 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.
| Engine oil filter | 11428683168 alt 11428637820 |
| Engine air filter | 13717605913 |
| Spark plug | 12120037582 |
| Battery | 61217639053 alt 61217648317 |
| Front wiper blades | 61612458020 |
| Thermostat | 11538671516 |
| Cabin air filter | 64116809933 alt 64119272642 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S8) |
| Overall length | 197.2 in |
| Overall width | 74.4 in |
| Overall height | 54.7 in |
| Wheelbase | 116.9 in |
| Curb weight | 4365 lb |
| Track (front / rear) | 63 / 65.7 in |
| Weight distribution (front / rear) | 53/47 |
| EPA city / highway / combined | 20 / 29 / 23 mpg |
| Drivetrain | All-Wheel Drive |
| Recommended fuel | Premium Gasoline |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 6.8 qt of 0W-30 / 0W-40 / 5W-30 engine oil, With limited slip: BMW MSP-A in the differential, DOT 4 brake fluid. Torque the oil drain plug to M12 Bolts: 18.0, M22 Bolts: 44.0 ft-lbs. The firing order is 1-5-3-6-2-4. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.
| Brake Fluid | DOT 4 |
| Clutch Fluid | DOT 4 |
| Differential Gear Oil | With limited slip: BMW MSP-A |
| Engine Coolant | Ethylene Glycol |
| Engine Coolant Capacity | 14.5-17.0 |
| Engine Oil | 0W-30 · 0W-40 · 5W-30 · 5W-40 |
| Engine Oil Capacity | 6.8 qt |
| Fuel Tank Capacity | 18.5 gallons |
| Crankshaft Pulley and/or Damper Bolts | 30 ft-lbs |
| Intake Manifold to Engine Bolts | 11 |
| Engine Oil Pan Drain Plug | M12 Bolts: 18.0, M22 Bolts: 44.0 ft-lbs |
| Cylinder Firing Order | 1-5-3-6-2-4 |
| Spark Plug Manufacturer | BMW |
| Spark Plug Type | M14X1.25 |
| Spark Plug Gap | non-adjustable in |
| Spark Plug Torque | 20.0 - 24.3 ft-lbs |
| Refrigerant | R134a |
| Standard BCI Group Number | 95R |
| Standard BCI Cranking Performance | 950 cca |
| Pressure Test | 21.7 psi |
| Radiator Cap Pressure Relief | 28-32 psi |
| Minimum Pad Thickness | Front: 0.145; Rear: 0.145 pads |
| Vented Rotor Minimum Thickness for Replacement | Stamped on rotor |
| Vented Rotor Minimum Thickness after Refinish | Stamped on rotor |
| Vented Rotor Maximum Scoring Depth | Stamped on rotor |
| Variation from Parallelism Thickness Variation | Stamped on rotor |
| Maximum Rotor Runout | Stamped on rotor |
Prep Do not reuse old bolts
| 1 | 22.0 ft. lbs. | 22 ft. lbs |
| 2 | 90 degrees | 90 degrees |
| 3 | Bolts 1-10 90 degrees | 90 degrees |
| 4 | 45 degrees | 45 degrees |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 2015 BMW 640i xDrive shows a modest improvement in owner-reported complaints, dropping to four from seven in 2014, while technical service bulletins also declined from 308 to 253. A single recall appears in 2015 where none existed for 2014, and investigations held steady at one each year. The 2015 complaint profile centers on wheels (two reports) with isolated structure, electrical system, service brakes, and engine entries; the data does not specify root causes for any category. One crash-related complaint was recorded with no fire incidents. Across this two-year snapshot, the 2015 model sits at a slightly cleaner complaint level but introduces a recall event, suggesting a mixed but generally favorable trajectory. For a used buyer, 2015 is a reasonable year to consider provided the open recall is verified as completed and a pre-purchase inspection focuses on wheel and brake components.
All 4 complaints on record, top 3 components.
Source: NHTSA Office of Defects Investigation complaint database.
No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.
Showing 5 of 253 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B510819 | 2024-01-16 | Electrical System | The basic conditions for initializing the power windows are not met. |
| B611305 | 2024-01-11 | Electrical System | The electrical system of BMW vehicles has been subject to an ongoing development process… |
| B340914 | 2023-06-01 | Wheels | The Dynamic Stability Control (DSC) warning light comes on while driving. The following… |
| B651523 | 2023-05-01 | Electrical System | After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode)… |
| B840822 | 2023-03-01 | Electrical System | The 3G network in the US has been shut down. This means that only the 4G network will be… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
Cross-vehicle references for the kinds of data on this page.
6.8 qt of Gasoline engines: 0W-30, 0W-40, 5W-30, 5W-40 oil meeting BMW specification LL01.Diesel engines: 0W-30, 0W-40, 5W-30, 5W-40 oil meeting BMW specification LL04, per the factory manual.
NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 20 city / 29 highway / 23 combined mpg.