Description

Audi A8 Training Manual – Factory SSP for 0BK/0BL Eight-Speed & Sport Differential

You have an Audi A8 in your bay, and the owner is complaining about a shudder on upshift. Without the factory training manual for the eight-speed automatic, you’re guessing. This Audi A8 Training Manual (Self-Study Programme 457) runs 68 pages and lays out exactly how the 0BK and 0BL gearboxes work, what the torque converter does in neutral idle, and why the sport differential in the 0BF/0BE axle behaves differently. I’ve been turning wrenches since before some of you were born, and I tell you: if you skip the theory, you’ll misdiagnose the hardware. This manual is not a repair manual—it’s the engineering brief you need before you crack a single bolt.

Eight-Speed Gearboxes 0BK and 0BL – What the Manual Covers

The manual starts by explaining why ZF Getriebe GmbH developed this eight-speed over the six-speed. Page 2 discusses the focus on fuel economy, reduced RPM, and drag losses. It introduces the shift-by-wire concept. If you’re working on an A8 with a transmission fault, you need to understand that the gearbox uses only two open shift elements per gear to reduce drag torque. That’s not something you’ll find in a generic service manual. The manual also details the twin-stroke vane pump design—a major improvement over older ATF pumps. For background on the evolution of automatic transmissions, see Manual Transmission.

Why OEM Training Manuals Beat Aftermarket Documentation

Aftermarket manuals copy from each other. They miss critical design intents like neutral idle control. This Training Manual came from Audi Service Training. It includes quotes from the ZF board member – that’s the level of detail you get. Page references to Self-Study Programme 385 for the 0B6 gearbox show how the lineage connects. When you’re diagnosing a sport differential issue on the 0BF/0BE, you need the factory logic. Aftermarket won’t have it. The development of eight-speed gearboxes is part of a broader trend in the automotive industry – see Automotive Industry Overview for context.

Fuel Economy and Performance Modifications – Real Data

The manual shows a chart of fuel efficiency improvements from three-speed through eight-speed. It lists specific modifications: wider ratio spread, reduced drag torque in shift elements, more efficient ATF pump, improved torsion damping. If you are modifying an A8 for better fuel economy, this manual gives you the baseline specs. You’ll understand why the torque converter lock-up strategy changed. There’s a graph on page 3 that quantifies the improvements in percentage. That’s data you can use to explain to your customer why the transmission behaves the way it does.

Is This Manual Right for Your A8?

This manual covers the 2010 Audi A8 with the eight-speed automatic gearboxes 0BK and 0BL. It also covers the rear axle drives 0BF and 0BE including the sport differential. If your A8 has a different transmission, like the earlier six-speed or the CVT, this manual won’t apply. The focus is strictly on this generation. It’s a training manual, not a step-by-step repair guide. You’ll get system descriptions, cross-sections, and hydraulic diagrams. For torque specs and disassembly procedures, you need the actual service manual. But for understanding what you’re working on, this is gold. If you need engine information, check the related Audi A8 6.3l W12 FSI Engine Self Study Programme or Audi A8 6.0 W12 Engine Self-Study Programme. For hybrid models, see Audi A6 A8 Hybrid Self Study Programme.

Shift-by-Wire: How the A8 Eliminates Mechanical Linkage

Page 2 mentions design flexibility in the interior through shift-by-wire. The manual goes into how the shift position is transmitted electronically. If you’ve ever replaced a shift cable on an older car, you’ll appreciate this. But it also means new failure modes – if the control module loses communication, you get no gear engagement. This manual explains the system architecture so you can pinpoint whether it’s a wiring issue or a solenoid fault. Important for DIYers: do not assume a broken shifter cable; it’s probably an electronic fault.

3 Major Systems the Manual Breaks Down

First: the eight-speed automatic gearboxes 0BK and 0BL. Second: the rear axle drives 0BF and 0BE. Third: the sport differential. Each system gets its own section with exploded views and oil flow diagrams. The manual also covers the ATF specifications, though specific torque values are not in a training manual – you’ll need the repair manual for that. But the training manual tells you why the ATF pump is a twin-stroke vane type, and that knowledge helps when diagnosing pump noise or low pressure.

Frequently Asked Questions

Does this manual cover the 6.3L W12 FSI engine?

No. It covers only the transmission and rear axle systems.

What year A8 does this training manual apply to?

It applies to the 2010 Audi A8. The manual title says “Audi A8 ’10”. Some content may apply to later years with the same 0BK/0BL gearboxes, but this is specifically for the 2010 model year launch.

Can I use this to rebuild the transmission?

This is a training manual, not a repair manual. It explains the design and function. For rebuild procedures, torque specs, and clearances, you need the factory service manual. However, reading this first will make the rebuild go faster because you’ll understand the internal logic. If you are a DIYer, I recommend getting both. The training manual answers the “why”, the service manual tells you “how”. For example, the manual explains neutral idle control – that helps you diagnose why the transmission shifts harshly after a fluid change if the adaptation wasn’t performed. Without that background, you might replace the valve body unnecessarily. So yes, you can use it to understand the rebuild, but you need the other manual for the actual steps.

What are the page numbers for torque specs?

Training manuals rarely list torque specs. The manual is only 68 pages and focuses on system description. For torque values, you need the proper service repair manual.

If you are working on an Audi A8 with the eight-speed automatic, this Training Manual belongs on your bench. It’s the factory’s own explanation of why things are designed the way they are. Pair it with the proper service manual, and you’ll save yourself hours of head-scratching. Access the Factory Manual from AutoRepairManuals and get the knowledge first.