Description

Audi 2.7-litre V6 Biturbo 1998 Training Manual

You want to understand the 2.7-litre V6 Biturbo from the inside out. Grab this Audi 2.7-litre V6 Biturbo 1998 Training Manual – factory SSP 198, 72 pages printed in Germany. Aftermarket books skip the variable valve timing details and the cooling circuit with the electrical pump V51. This OEM document tells you exactly how engineers designed the cylinder head, crankshaft, and camshaft timing. It is not a repair manual – it is the design and function guide that makes any repair manual make sense. Without it, you are guessing at how the torque-oriented engine management reacts to sensor inputs. That costs time and parts.

Don’t confuse it with a workshop manual – it is not.

Engine Technical Data: Crankshaft, Cylinder Head, Camshaft Timing

Page 4 of this Training Manual lays out the technical data for the 2.7-litre V6 Biturbo. The crankshaft journal dimensions, the cylinder head gasket surface, the camshaft timing chain routing – all drawn from Audi’s factory specs. You also get the cooling circuit diagram and the oil circuit routing. The integrated oil supply system is shown. If you are rebuilding one of these, the basic torque level concept from this page explains why the engine responds the way it does at part throttle. The fan circuit for A/C vehicles and the electrical coolant circulation pump V51 operation are explained. Without this, you might cycle the cooling system wrong and overheat the rear cylinders.

Motronic ME 7.1: Torque-Oriented Management

Starting on page 31, the manual covers Motronic ME 7.1 subfunctions. System overview, torque-oriented engine management, electronic throttle (E-gas), exhaust gas temperature control. The hot-film air mass meter G70 and accelerator position senders G79 and G185 are detailed. The throttle valve control part J338 with angle senders G187 and G188. This section explains how the CPU calculates torque reduction and torque increase. If you are diagnosing a limp mode, the self-diagnosis chapter on page 64 walks you through VAS 5051 and test box V.A.G 1598/31. The altitude sender F96 is covered. This is where you learn the logic behind the fault codes. Many professional Audi technicians rely on this torque-oriented functional structure diagram to understand why the ECU limits power when the exhaust gas temperature rises. The manual also covers charge pressure control and air divert control in overrun. The 72 pages include cutaway drawings of the pneumatic systems and the exhaust system. It is dense, but every piece of information is relevant to proper diagnostics.

Cooling Circuit and Engine Lubrication – Factory Schematics

The cooling circuit section shows the flow path through the cylinder head and block. The electrical coolant circulation pump V51 runs after shutdown to prevent hot spots. The fan control for vehicles with air conditioning is included. The engine lubrication section has the oil circuit with the integrated oil supply, the component parts, and the crankcase breather. The crankshaft main bearing lubrication paths are shown. For the 2.7-litre V6 Biturbo, oil pressure and flow are critical – this manual documents the system from the oil pump to the camshaft bearings. Variable valve timing adjusters rely on proper oil pressure; this manual explains that.

Use this for understanding, not for torque specs.

Why This Training Manual Is Not a Workshop Manual (But You Still Need It)

Audi states it clearly: ‘This Self-study Programme is not a Workshop Manual.’ No torque specs in ft-lbs. No step-by-step removal. But it gives you the foundation. You understand the variable valve timing, the charge pressure control, the divert air control in overrun. The pneumatic systems and exhaust system are shown in schematic form. When you combine this with the service literature, you avoid the mistakes that come from guessing. For example, the ‘integrated oil supply’ diagram on page 4 shows piping that aftermarket diagrams often get wrong. If you skip this manual, you might install the wrong oil line routing or misunderstand the self-diagnosis protocols. It is 72 pages of focused technical education.

3 Systems Covered in Detail

1) The variable valve timing mechanism on the cylinder head – shows how the camshaft adjuster works. 2) The torque-oriented Motronic functional structure – including electronic throttle and exhaust gas temperature control. 3) The self-diagnosis protocols for VAS 5051 and test box V.A.G 1598/31 – essential for fault code interpretation. Each system is accompanied by cutaway drawings and schematics. The engine lubrication diagram alone is worth the purchase. The crankshaft and camshaft timing marks are shown. If you own an Audi S4 or A6 with this engine, this manual belongs on your bench.

For related factory training material, see the Audi multitronic 01J Training Manual – CVT Design & Function (100 Pages). Another valuable resource is the Audi 09L, 0AT, 0B6, 0BQ, 09E 2006 Training Manual – Factory Specs. Also check the Audi Q7 Training Manual – 76-Page Factory Self-Study Programme 361.

This manual meets the same documentation standards as Automotive Industry Overview. It is part of Automotive Industry Overview best practices for OEM training.

Frequently Asked Questions

Can I use this manual to replace a head gasket?

No. It is a design and function guide, not a repair procedure manual.

Does the manual include wiring diagrams for the Motronic?

It includes functional diagrams and a system overview, but not full wiring harness pinouts. The manual covers the sensor functions – hot-film air mass meter, accelerator position senders, throttle valve angle senders, altitude sender. It explains how they interact with the torque-oriented engine management. For complete wiring schematics, you need the Audi service manual. However, the self-diagnosis section shows the test box connections for V.A.G 1598/31, which is essential for electrical troubleshooting. Many technicians use this training manual to understand the logic before reaching for the multimeter. The 72 pages include enough detail on the Motronic subsystems to diagnose common failures like the throttle valve control part J338. Without it, you could replace parts that aren’t faulty.

If you work on the Audi 2.7-litre V6 Biturbo, you need the OEM perspective. Access the Factory Manual now and add this training guide to your digital library.