Audi 2.0-litre TDI Training Manual – Factory SSP 420

Description

When you tear into a modern diesel, guesswork costs you time and parts. The Audi 2.0-litre TDI Training Manual is a 64-page factory Self-Study Programme (SSP 420) that explains exactly how the common rail system works, what each sensor does, and what happens when you get the timing wrong. This is not a repair manual – it is the missing piece between a service manual and a working knowledge of the engine. For home garage guys and pro techs alike, understanding the theory behind the Audi 2.0-litre TDI CR engine is what keeps a job from turning into a parts-swapping nightmare.

Cylinder Block and Crank Mechanism – Page 7 Details

The manual opens with the bottom end: cylinder block, crank mechanism, and balancer shaft module. Page 7 covers the cast-iron block design and the forged steel crankshaft. If you are re-ringing this engine or replacing a spun main bearing, you need to know the oil clearance specs and which balancer shaft orientation keeps the engine from shaking your teeth out. The crankcase ventilation system (page 18) and oil circulation system (page 16) are also laid out with flow diagrams, not just text. This is the kind of depth that aftermarket books leave out.

Common Rail Injection System – What’s on Page 26

Fuel system pages (26 through 30) walk through the auxiliary fuel pump, fuel preheating valve, and the high-pressure common rail itself. Page 30 has the injector return flow test procedure – a diagnostic step most DIYers skip because the manual doesn‘t spell it out. This one does. The ”System overview” on page 42 and the ”Engine management” section starting page 44 explain the ECU strategy for rail pressure and injection timing. If you have ever had a no-start after a fuel pump replacement and wondered if the rail pressure sensor signal was right, this section pays for itself.

Service and Special Tools – What You Actually Need (Page 62)

Page 62 lists the special tools Audi expects you to use. Locking pins, camshaft alignment tools, and the injector puller. Without the factory part numbers, you will waste an hour at the tool crib guessing. The manual also covers the toothed belt drive (page 13) and the intake manifold with swirl flaps (page 14) – two common failure points that produce EGR faults and performance complaints. I have seen guys replace a turbo because they missed a stuck swirl flap. That won‘t happen if you read page 14.

Why a Training Manual Instead of a Repair Manual?

Most aftermarket manuals give you torque specs but skip the reasoning. This Training Manual tells you why the cylinder head uses 4-valve technology (page 12) and why the camshaft drive (page 11) has a specific gear tooth pattern. When you understand the design intent, you avoid assembly mistakes that cause bent valves or oil starvation. The coolant system (page 22) and EGR cooling system (page 24) are also covered with cross-section drawings that show internal flow paths.

Is This Manual for Your Diesel Project?

If you own a VW or Audi with the 2.0-litre CR TDI – from the 2008 to 2015 models – this manual applies directly. The engine mechanicals section (starting page 25) includes the balancer shaft module timing marks and the oil circulation system routing. For diagnostics, you need the fuel preheating valve operation (page 29) and the common rail injection system schematic (page 30). This is not a beginner‘s guide to changing oil. It is for the guy who wants to know why a low-pressure fuel fault shows up as a rail pressure out-of-range code.

Related Training Manuals

• Audi multitronic 01J Training Manual – CVT Design & Function (100 Pages)
• Audi 09L, 0AT, 0B6, 0BQ, 09E 2006 Training Manual – Factory Specs
• Audi Q7 Training Manual – 76-Page Factory Self-Study Programme 361

For broader industry context on modern common rail systems, check the Automotive Industry Overview. If you are cross-referencing transmission and drivetrain issues, the Manual Transmission knowledge may help separate engine from gearbox faults.

Does this manual include torque specifications for the cylinder head bolts?

No. This is a Self-Study Programme, not a repair manual. It explains design and function. Torque values in the SSP are for understanding only – always use the official factory repair manual for assembly specs.

Can I use this manual to remove and reinstall the high-pressure fuel pump on my Audi A4 2.0 TDI?

You can if you combine it with a proper repair manual. The training manual shows you the pump location, the fuel preheating valve circuit, and the internal parts (page 28-30). It also identifies the special tool required (page 62 for tool list). But for the actual removal sequence and bolt torques, you need the factory workshop manual. This training manual gives you the background so you do not snap a bolt or bend a line while following the repair steps.

The last page of the manual lists the special tools with Audi part numbers. That alone could save you a trip to the dealer. When you have the factory information in front of you, every job goes faster. Don‘t trust a third-party PDF that skips the critical details. Access the Factory Manual and get the exact cutaway drawings, system schematics, and tool lists Audi built for its own techs.