Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2015 640i.
The 2015 BMW 640i is a passenger car featuring an S8 automatic transmission and an engine that requires 6.8 quarts of 0W-30, 0W-40, or 5W-30 oil. This model delivers an EPA-rated fuel economy of 20/30/24 mpg. Within the 2012-2019 model history, the 2015 year recorded four total owner complaints—primarily focused on the wheels—and one recall, placing it between the 2014 high of seven complaints and the 2019 low of two.
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 | 11538671514 |
| Cabin air filter | 64119272642 alt 64116809933 |
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 / 30 / 24 mpg |
| Drivetrain | Rear-Wheel Drive |
| Recommended fuel | Premium Gasoline |
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the 640i of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
| Year | Trim / engine | 0–60 | ¼ mile | HP | Drivetrain |
|---|---|---|---|---|---|
| 2016 | Convertible 3.0L Turbo I-6 | 4.90 sec | 13.60 sec | 315 hp | RWD |
| 2016 | Gran Coupe 3.0L Turbo I-6 | 5.30 sec | 13.80 sec | 315 hp | RWD |
| 2013 | Gran Coupe 3.0L Turbo I-6 | 5.40 sec | 14.10 sec | 315 hp | RWD |
| 2013 | Gran Coupe 3.0L Turbo I-6 | 5.40 sec | 14.10 sec | 315 hp | RWD |
| 2013 | Gran Coupe 3.0L Turbo I-6 | 5.50 sec | 14.00 sec | 315 hp | RWD |
| 2013 | Gran Coupe 3.0L Turbo I-6 | 5.60 sec | 14.30 sec | 315 hp | RWD |
| 2018 | xDrive Gran Turismo (M Sport) 3.0L Turbo I-6 | 4.70 sec | 13.40 sec | 335 hp | AWD |
| 2018 | xDrive Gran Turismo (M Sport) 3.0L Turbo I-6 | 4.80 sec | 13.30 sec | 335 hp | AWD |
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 |
| Driveshaft Flange to Transmission | M8 Bolts: 33.0, M10: 58.0 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 sits in the middle of this generation's federal record and marks a clear improvement over the preceding 2013–2014 model years: owner complaints dropped from a generation-high of seven in 2014 to four in 2015, while TSBs continued their steady downward trajectory from 366 in 2012 to 253 in 2015. After two consecutive recall-free years, 2015 registered one recall and retained one investigation, matching the investigation count of every earlier year in the dataset except 2019. The top complaint areas for 2015 were wheels (two complaints), structure (one), and a single combined entry covering electrical system, service brakes, and engine (one); the year also recorded one crash-related complaint and zero fire complaints. Because the data does not specify root causes, no underlying failure mode can be inferred beyond these reported categories. Relative to the 2012 launch year and the 2014 complaint peak, 2015 shows fewer owner reports and lower manufacturer service-bulletin activity, suggesting the generation had largely settled by this point. That makes the 2015 640i a comparatively reasonable used-car choice within this group, provided a buyer verifies the single recall was completed and has the vehicle inspected for wheel and structural concerns.
All 4 complaints on record, top 3 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 1 of 1 campaigns on record for this vehicle.
BMW of North America, LLC (BMW) is recalling certain 2015 6 Series Gran Coupe, 2014 5 Series Gran Turismo, 2014 5 Series Sedan, 2015 6 Series Convertible, 2015 6 Series Coupe, 2014 X5, 2013-2014 X3, 2014-2015 3 Series… Remedy: The driver's front air bag will be replaced, free of charge. Owner notification letters were mailed September 6, 2024. Owners may contact BMW customer service at 1-800-525-7417.
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 / 30 highway / 24 combined mpg.