Audi 100 C4 Service Manual. Engine Repair. DTC

This guide is a manual for the repair and maintenance of Audi 100/200 (C4) cars manufactured from 1990 to 1994, is intended for employees of service stations and repair shops, and can also be useful for individual car owners. This generation of Audi was equipped with the following engine modifications.

4-cylinder petrol: AAD 2.0 l, 115 hp; AAE 2.0 l, 101 hp

5-cylinder gasoline: MC 2.2 l, 162 hp; 3B 2.2 l, 220 hp; NF 2.3 l, 130 hp; AAR 2.3 l, 133 hp

6-cylinder petrol: AAH 2.8 l, 174 hp

5-cylinder diesel: AAS 2.4 l, 82 hp; AAT 2.5 L, 115 HP

Detailed specifications and descriptions of all engines

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Audi 100, 200 Service Repair Manual Download

Audi 100 200 1990-1994 Service Manual Download

Audi 100 C4 Maintenance Download

Audi 100 C4 4-Cyl. Diesel Direct Injection Engine (TDI),  Mechanical Components 1Z AHU Download

Audi 100 C4 4-cyl. Engine (2-valve), Mechanical Components AAD AAE ABB ABK ADA ADW Download

Audi 100 C4 4-cyl. Engine (5-valve), Mechanical Components ADR Download

Audi 100 C4 5-cyl. Diesel Engine, Mechanical Components (2.4l Engine) AAS Download

Audi 100 C4 5-cyl. Diesel Engine, Mechanical Components (2.5l Engine) AAT ABP AEL Download

Audi 100 C4 5-cyl. Engine (2-valve), Mechanical Components AAR Download

Audi 100 C4 5-cylinder engine (4-valve, turbo), Mechanics AAN Download

Audi 100 C4 6-cyl. Engine, (5-Valve), Mechanical Components ACK Download

Audi 100 C4 6-cyl. Injection Engine (2-val.), Mechanical Components AAH ABC ACZ AEJ Download

Audi 100 C4 6-Cyl. Fuel Injection Engine (2.6l Engine, 2-Valves), Mechanics ABC Download

Audi 100 C4 8-cylinder engine, mechanical components BAH AEC AHK Download

Audi 100 C4 Diesel Direct Injection and Glow Plug System (2.4l Engine) AAS Download

Audi 100 C4 Diesel direct injection and glow plug system (TDI 5-cyl.) AAT ABP AEL Download

Audi 100 C4 Diesel direct injecton and glow plug system (TDI 4-cyl.) 1Z AHU Download

Audi 100 C4 Digifant injection and ignition system (4-cyl.) ABK ADW Download

Audi 100 C4 K-Jetronic/TCI-H ignition system ABB Download

Audi 100 C4 KE III Jetronic/Ignition System (5-cylinder) AAR Download

Audi 100 C4 KE Motronic Injection and Ignition System (4-valve) ACE Download

Audi 100 C4 KE-Motronic Injection and Ignition System (4-cylinder) AAD Download

Audi 100 C4 MPFI fuel injection and ignition system (6-cyl.) ABC ACZ Download

Audi 100 C4 MPI Fuel injection and ignition system (6-cyl.) > 05.94 AAH Download

Audi 100 C4 MPI Fuel injection and ignition system (6-cyl.) > 06.94 AAH AEJ Download

Audi 100 C4 Mono-Motronic injection and ignition system (4-cyl.) 07.92 > AAE Download

Audi 100 C4 Mono-Motronic injection and ignition system (4-cyl.) > 06.92 AAE Download

Audi 100 C4 Motronic Fuel Injection and Ignition System (5-cylinder) AAN Download

Audi 100 C4 Motronic fuel injection and ignition system (8-cyl.) AHK Download

Audi 100 C4 Motronic injection and ignition system (4-cyl.) ADR Download

Audi 100 C4 Motronic injection and ignition system (6-cylinder) ACK Download

Audi 100 C4 Motronic injection and ignition system (8-cyl.) ABH AEC Download

Audi 100 C4 Fuel supply system – diesel engines Download

Audi 100 C4 Fuel supply system – petrol engines Download

Audi 100 C4 5 and 6-speed manual gearbox 01E, four-wheel drive Download

Audi 100 C4 5 and 6-speed manual gearbox 01E, front-wheel drive Download

Audi 100 C4 5-Speed manual gearbox 012/01W, Front-wheel drive Download

Audi 100 C4 5-Speed manual gearbox 01A Four-wheel drive Download

Audi 100 C4 Automatic Gearbox 01F 4WD Download

Audi 100 C4 Automatic gearbox 01K Front-wheel drive Download

Audi 100 C4 Automatic gearbox 01F and 01K, self-diagnosis Download

Audi 100 C4 Automatic Gearbox 01N Download

Audi 100 C4 Automatic gearbox 01N Self-diagnosis Download

Audi 100 C4 Automatic gearbox 018 Four-wheel drive Download

Audi 100 C4 Automatic gearbox 018 Self-diagnosis Download

Audi 100 C4 Automatic gearbox 097 Download

Audi 100 C4 Automatic gearbox 097 Self-diagnosis Download

Audi 100 C4 Running gear, Self-diagnosis Download

Audi 100 C4 Running gear, front-wheel drive and four-wheel drive Download

Audi 100 C4 Brake system Download 

Audi 100 C4 Heating, air conditioner Download

Audi 100 C4 Air conditioner with refrigerant R134a Download

Audi 100 C4 Air conditioners with refrigerant R1234yf – General information Download

Audi 100 C4 Fitting instructions: radio communication systems Download

Audi 100 C4 General body repairs Download

Audi 100 C4 Body Repairs Download

Audi 100 C4 Electrical system; General information Download

Audi 100 C4 Electrical system Download

AUDI 100 C4 Diagnosis

Audi 100 C4 Automatic gearbox 01N Self-diagnosis Download

Audi 100 C4 Automatic gearbox 018 Self-diagnosis Download

Audi 100 C4 Automatic gearbox 097 Self-diagnosis Download

Audi 100 C4 Running gear, Self-diagnosis Download

The Audi 100 of the C4 family went on sale in December 1990 and became the brand’s first car with a V-shaped 6-cylinder engine. In 1995, after the introduction of a new designation system, it was renamed the Audi A6. Until 1998, the Neckarsulm plant produced 773,847 Audi 100 C4/Audi A6 vehicles.

All modifications, including all-wheel drive quattro, were now equipped with 5-speed manual or 4-band automatic transmissions, all without exception had disc brakes (front – with ventilated discs).

Changed views on the modification of Avant. Previously, the company positioned this body as a Limousinen-Kombi, a cross between a sedan and a station wagon. From now on, its spaciousness was at the forefront. The company was prompted to change by complaints from motorists about the noticeable heating of the passenger compartment through the heavily tilted glass of the fifth door of the Audi 100 C3 Avant.

It was no longer supposed to produce a powerful and expensive modification of the Audi 200, it was replaced by the Audi S4 with a 5-cylinder gasoline 20-valve engine (2.2 l, 169 kW / 230 hp) with a turbocharger or a 4.2-liter V8 (206 kW / 280 hp) in combination with a 5-speed manual transmission and all-wheel drive. Reinforced brakes with ventilated discs with a diameter of 314 mm were installed in the front ones.