Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Audi S8 BaseFACTORY OEM SERVICE PROCEDURE
Transmission-Engine Allocation, AWD
| Automatic Transmission | 0BK AWD | ||||
|---|---|---|---|---|---|
| Transmission | Code letters | MEE | NDE | MXR NXW | |
| Torque Converter | Code letters | N140 | N140 | Y137 | |
| Allocation | Type | Audi A8 from MY 2010 Europe, USA and Canada | Audi A8 from MY 2010 Europe, USA and Canada | Audi A8 from MY 2010 Europe, USA and Canada | |
| Engine | 4.0L TFSI - 309 kW | 4.0L TFSI - 309 kW | 4.2L FSI - 273 kW | ||
| Primary drive | 32 : 33 = 0.970 | 32 : 33 = 0.970 | 32 : 33 = 0.970 | ||
| Gear wheel, front axle | 31 : 29 = 1.069 | 31 : 29 = 1.069 | 31 : 29 = 1.069 | ||
| Front axle bevel gear | 34 : 11 = 3.091 | 34 : 11 = 3.091 | 34 : 11 = 3.091 | ||
| Complete front axle ratio = primary drive x drive wheel x bevel gear | 3.204 | 3.204 | 3.204 | ||
| Rear axle bevel gear | 43 : 13 = 3.308 | 43 : 13 = 3.308 | 43 : 13 = 3.308 | ||
| Complete rear axle ratio = rear axle bevel gear x primary drive | 3.207 | 3.207 | 3.207 | ||
| Oil system, front final drive/transfer case | Shared | Shared | Separated | ||
| Start/Stop System | yes | yes | no | ||
| Automatic Transmission | 0BK AWD | |||
|---|---|---|---|---|
| Transmission | Code letters | MXT | NCK | |
| Torque Converter | Code letters | Y137 | T139 | |
| Allocation | Type | Audi A8 from MY 2010 China, South Korea USA, And Canada | Audi A8 from MY 2010 Europe, USA and Canada | |
| Engine | 3.0L TFSI - 245 kW | 6.3L FSI - 368 kW | ||
| Primary drive | 32 : 33 = 0.970 | 27 : 29 = 0.931 | ||
| Gear wheel, front axle | 31 : 29 = 1.069 | 31 : 29 = 1.069 | ||
| Front axle bevel gear | 34 : 11 = 3.091 | 34 : 11 = 3.091 | ||
| Complete front axle ratio = primary drive x drive wheel x bevel gear | 3.203 | 3.076 | ||
| Rear axle bevel gear | 43 : 13 = 3.308 | 43 : 13 = 3.308 | ||
| Complete rear axle ratio = rear axle bevel gear x primary drive | 3.207 | 3.080 | ||
| Oil system, front final drive/transfer case | Separated | Shared | ||
| Start/Stop System | no | yes | ||
| Automatic Transmission | 0BK AWD | |||
|---|---|---|---|---|
| Transmission | Code letters | NPQ | MEF | |
| Torque Converter | Code letters | P140 | N140 | |
| Allocation | Type | Audi A8 from MY 2010 Europe, USA and Canada | Audi A8 from MY 2010 Europe, USA and Canada | |
| Engine | 3.0L TDI - 184kW and 176kW | 4.0L TFSI - 382 kW | ||
| Primary drive | 27 : 34 = 0.794 | 32 : 33 = 0.970 | ||
| Gear wheel, front axle | 31 : 29 = 1.069 | 31 : 29 = 1.069 | ||
| Front axle bevel gear | 34 : 11 = 3.091 | 34 : 11 = 3.091 | ||
| Complete front axle ratio = primary drive x drive wheel x bevel gear | 2.624 | 3.204 | ||
| Rear axle bevel gear | 43 : 13 = 3.308 | 43 : 13 = 3.308 | ||
| Complete rear axle ratio = rear axle bevel gear x primary drive | 2.627 | 3.207 | ||
| Oil system, front final drive/transfer case | Separated | Shared | ||
| Start/Stop System | yes | yes | ||
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.