Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2008 X6 50I.
The 2008 BMW X6 50i is the E71-platform variant, distinguished by a 6.9-quart oil capacity, a six-speed automatic (S6) transmission, and EPA ratings of 15/20/17 mpg. Service specifications call for 15W-40, 10W-40, or 10W-30 API SJ oil, tying routine maintenance directly to the 50i powertrain. From a reliability standpoint, this model year carries eight recalls and only four owner complaints on record, with the electrical system standing out as the top complaint area — a sparse but pointed history that represents the earliest reliability snapshot for the E71-platform X6 50i.
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 49 · 900 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 11427583220 |
| Engine air filter | 13717571355 alt 13717577457 |
| Spark plug | 12120037244 alt 12120037580 |
| Battery | 61217594976 |
| Front wiper blades | 61610077821 |
| Thermostat | 11538632664 alt 11537550172 |
| Cabin air filter | 64319194098 alt 64316804939 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S6) |
| Overall length | 192.9 in |
| Overall width | 78 in |
| Overall height | 66.9 in |
| Wheelbase | 115.7 in |
| Track (front / rear) | 65 / 64.6 in |
| EPA city / highway / combined | 15 / 20 / 17 mpg |
| Drivetrain | 4-Wheel or All-Wheel Drive |
| Passenger volume | 98 cu ft |
| Cargo volume | 26 cu ft |
| Recommended fuel | Premium Gasoline |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 6.9 qt of 15W-40 / 10W-40 / 10W-30 API SJ engine oil, DOT 4 brake fluid. Torque lug nuts to 103 ft-lbs, the oil drain plug to M12 Bolts: 18.0, M22 Bolts: 44.0 ft-lbs. The firing order is 1-5-4-8-6-3-7-2. 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.
| Automatic Transmission Fluid | BMW part number 83220142516 |
| Automatic Transmission Fluid Capacity | 10.5-11.5 |
| Brake Fluid | DOT 4 |
| Differential Gear Oil Capacity | 2.1 Pints |
| Differential Gear Oil Capacity | 1.1 Pints |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 15W-40 · API · 10W-40 · 10W-30 · 5W-30 |
| Engine Oil Capacity | 6.9 qt |
| Engine Flywheel Bolts | AT: 92 ft-lbs, MT: 89 ft-lbs |
| Engine Oil Pan Drain Plug | M12 Bolts: 18.0, M22 Bolts: 44.0 ft-lbs |
| Lug Nuts | 103 ft-lbs |
| Transfer Case Fill Plug | 24.0 ft-lbs |
| Transfer Case Drain Plug | 24.0 ft-lbs |
| Front Wheel Hub | 310 ft-lbs |
| Rear Wheel Hub | 310 ft-lbs |
| Cylinder Firing Order | 1-5-3-6-2-4 |
| Cylinder Firing Order | 1-5-4-8-6-3-7-2 |
| Spark Plug Manufacturer | BMW |
| Refrigerant | R134a |
| Oil Group | PAG |
| Oil Type | 46 |
| Optional BCI Group Number | 49 |
| Optional BCI Cranking Performance | 850 cca |
| Standard BCI Group Number | 49 |
| Standard BCI Cranking Performance | 900 cca |
| Standard BCI Group Number | 49 |
| Engine Compression | 130-261 PSI. 29 maximum variation. psi |
| Torque Caliper to Bracket | 22 |
| Torque to Knuckle | 81 ft-lbs |
| Minimum Pad Thickness | Front: 0.145; Rear: 0.145 pads |
| Rotor Nominal Thickness From | 0.787 in / 1.181 in / 0.945 in / 1.417 in |
| Rotor Nominal Thickness To | 0.787 in / 1.181 in / 0.945 in / 1.417 in |
| Rotor Discard at or Under | 0.724 in / 1.118 in / 0.881 in / 1.354 in |
| 1 | 15 ft. lbs., Step 2: 137 | 15 ft. lbs |
| 1 | 73 ft. lbs., step 2: 60 degrees, step 3: 60 degrees, step 4: 60 | 73 ft. lbs |
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 |
| 1 | 22.0 ft. lbs. | 22 ft. lbs |
| 2 | 90 degrees | 90 degrees |
| 3 | 90 degrees | 90 degrees |
| 1 | 15 ft. lbs., Step 2: 70 | 15 ft. lbs |
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the spark plugs every 45,000 mi.
| Every 45,000 mi | Spark Plugs (replace) |
| Every 100,000 mi | Transmission Assembly (drain & refill) |
| At 120,000 mi | Oxygen Sensor (replace) |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Owner complaints about the 2008 BMW X6 50I lead in one area — the electrical system, 1 of 4 reports (25%), well ahead of the next concern. None of this vehicle's 8 recall campaigns target the electrical system, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the electrical system pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.
All 4 complaints on record, top 4 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 8 campaigns on record for this vehicle.
BMW of North America, LLC (BMW) is recalling certain 2007-2013 X5 xDrive30i, X5 xDrive35i, X5 xDrive48i, X5 xDrive50i and X5 M vehicles, 2008-2014 X6 xDrive35i, X6 xDrive50i and X6 M vehicles, 2009-2013 X5 xDrive35d… Remedy: Owners are advised not to drive their vehicles until the remedy is performed. BMW will notify owners, and dealers will replace the passenger frontal air bag module, free of…
BMW of North America, LLC (BMW) is recalling certain 2011-2012 BMW 550i, 550i xDrive, 550i Gran Turismo, 550i Gran Turismo xDrive, 750i, 750Li, 750i xDrive, 750Li xDrive, 760Li, X5 xDrive50i, X5 M, X6 xDrive50i, X6 M… Remedy: BMW will notify owners, and dealers will replace the electric auxiliary water pump, free of charge. Depending on the model, there are currently limited parts available, however…
Showing 5 of 241 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… |
| B612723 | 2023-12-08 | Electrical System | When using the Key Reader to retrieve CBS information from the customer key, no current… |
| B653423 | 2023-11-22 | Electrical System | Customers may state that the alarm system (DWA) is not active after locking their… |
| B612723 | 2023-11-13 | Electrical System | When using the Key Reader to retrieve CBS information from the customer key, no current… |
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.
6.9 qt of HIGH PERFORMANCE MINERAL OILS: ABOVE 5 degrees F: 15W-40 API SJ, SL OR SM, -5 degreesF TO 68 degrees F: 10W-40 API SJ, SL OR SM, 5 degreesF TO 50 degrees F: 10W-30 API SJ, SL OR SM, BELOW 50 degrees F: 5W-30 API SJ, SL OR SM, BELOW 32 degrees F:, per the factory manual.
NHTSA lists 8 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 15 city / 20 highway / 17 combined mpg.