1981–1996 Audi Coupé (B2, B3) Service and Repair Manual PDF

Description

Audi Coupé (B2 and B3) Service and Repair Manual — 1981 to 1996

Two very different cars have worn the “Audi Coupé” badge, and the first thing this documentation does is stop you confusing them. The early Coupé (B2, 1980–1988) is a relative of the legendary Ur-Quattro and shares its body shape. The later Coupé (B3, 1988–1996) is a completely different car underneath, based on the B3 Audi 80. They look related. They are not interchangeable.

Order parts for the wrong one — which is easy to do, because sellers and catalogues muddle them constantly — and you will waste money on components that do not fit. This set keeps the two generations clearly separated.

The two generations, kept apart

Audi Coupé B2 (Typ 81/85, 1981–1988)

The original. A two-door built on the B2 platform, sharing its body shape with the Audi Quattro but without the turbocharger and — in most cases — without four-wheel drive. It was Audi’s affordable route into that famous silhouette. The Coupé GT is the best-known version, and this is the car enthusiasts restore today.

Audi Coupé B3 (Typ 8B, 1988–1996)

A clean-sheet replacement introduced in late 1988, with completely different three-door liftback bodywork and a new front suspension that previewed the B4 Audi 80. It outlived the B3 saloon and ran alongside the early A4. Mechanically it has far more in common with the later 80 and the Cabriolet than with the B2 Coupé it replaced.

Throughout this documentation, procedures, wiring and body data are labelled by generation. If you know your type code — 81/85 for the early car, 8B for the later one — you will always know which section applies to you.

Engines covered

Generation	Engine	Notes
B2	1.8 four-cylinder (carb and injection)	PV, DZ and others — the lesser Coupés
B2	2.0 / 2.1 / 2.2 / 2.3 five-cylinder	The characteristic inline-five
B2	2.3 10v five-cylinder (NG)	136 PS, the final and best B2 engine
B3	2.0 8v and 16v four-cylinder	Base engines
B3	2.3 five-cylinder (10v and 20v)	The 20v is the enthusiast’s pick
B3	2.6 and 2.8 V6	Later cars

The inline-five is the engine most associated with these cars, and it has its own timing, balancing and fuel-system characteristics that a four-cylinder-focused generic manual simply does not address. Both the 10-valve and 20-valve five-cylinder heads are documented, and they are not the same to work on.

Every engine here is belt-driven and interference — a snapped belt ends the engine.

Fuel systems — mechanical, and their own world

Many of these cars, especially the B2, run Bosch K-Jetronic or KE-Jetronic mechanical fuel injection — a system that measures airflow with a physical plate and meters fuel by hydraulic pressure, with barely a sensor in sight.

If you have never worked on CIS injection, it is unlike anything on a modern car, and the usual electronic-diagnostic instincts will lead you nowhere. System pressure testing, the warm-up regulator, the fuel distributor, mixture adjustment and cold-start behaviour are all documented. This alone is a reason to have a period-correct manual rather than a modern one.

Transmissions and drivetrain

Four- and five-speed manual — clutch, release bearing, linkage and fluid specification for both generations.

Automatic — fluid procedure and adjustment where fitted.

quattro (where fitted) — some B2 Coupés were built with the mechanical quattro system, with a manually lockable centre and rear differential. Its operation, the vacuum-actuated locking, and the driveline are documented for the cars that have it. This is a purely mechanical system — no electronics, no Haldex.

Electrical and diagnostics

Full wiring diagrams for both generations, connector views, the central electrics board and its relays, the instrument cluster, and — where the later cars support it — the early diagnostic blink-code procedure.

These are pre-OBD-II cars. There is no plugging in a modern scan tool and reading a code. Fault-finding is done with a multimeter, the wiring diagram and, on later cars, blink codes — and the documentation is built around that reality.

Known Audi Coupé faults you will be looking up

• K-Jetronic / KE-Jetronic running problems — poor cold starting, uneven idle, hesitation. Almost always system pressure, the warm-up regulator, or mixture, and testable with the right procedure rather than guesswork.
• Wrong generation, wrong parts — the most expensive mistake on these cars. B2 and B3 are not interchangeable. The documentation makes the identification explicit.
• Timing belt on every engine — all interference designs. Interval, tensioner and water pump.
• Five-cylinder cold-start and warm-up issues — specific to the inline-five and its fuel system.
• Rust in the usual places — these cars are old and not galvanised like the later A8. Structural inspection points, the sills, the front subframe mounts and the rear arches.
• Instrument cluster and voltage stabiliser faults — erratic gauges traced to the stabiliser rather than the senders.
• Wiring insulation degradation — decades-old looms that crack and short. Repair rather than symptom-chasing.
• Central locking and window mechanisms — the age-related failures and their repair.
• Distributor, cap, rotor and ignition — misfire and hard starting on the older engines.
• Heater matrix and blower — a significant job on these cars, worth diagnosing correctly before starting.

What’s inside this manual set

• Engine — removal, overhaul, timing, torque specifications
• Fuel and ignition — including K-Jetronic / KE-Jetronic mechanical injection
• Cooling and lubrication
• Transmission — manual, automatic and, where fitted, quattro
• Clutch and driveshafts
• Brakes
• Suspension and steering, with alignment data
• Body — panel repair, body dimensions, rust inspection points, trim removal
• Heating, ventilation and air conditioning
• Electrical — full wiring diagrams for both generations, connector views
• Diagnostics — blink codes and fault-finding procedures
• Maintenance schedules and service procedures

Format and delivery

Supplied as a set of searchable PDF files covering both the B2 (Typ 81/85) and B3 (Typ 8B) Audi Coupé, clearly separated by generation. Readable and printable on any device: laptop, tablet, phone, or the workshop PC. No software to install, and no internet connection needed once the files are saved.

Select your year at checkout. After payment, your download link is sent within 24 hours.

Frequently asked questions

Which Audi Coupé do I have?

If it is a 1981–1988 car sharing its shape with the Ur-Quattro, it is the B2 (Typ 81/85). If it is a 1988–1996 three-door liftback that looks like the Audi 80 of the era, it is the B3 (Typ 8B). The documentation is labelled by generation throughout, so once you know your type code you always know which section to use.

Does it cover the mechanical K-Jetronic fuel injection?

Yes, in detail — system pressure testing, the warm-up regulator, the fuel distributor, mixture adjustment and cold-start behaviour. If you have never worked on CIS injection before, this is the section you will use most.

Is the five-cylinder engine covered?

Yes — the inline-five in both 10-valve and 20-valve forms, which are quite different to work on. This is the engine most associated with these cars, and it has timing and fuelling characteristics a generic four-cylinder manual will not help you with.

My Coupé is a quattro. Is that in here?

Yes, for the cars that have it. The mechanical quattro system with its lockable centre and rear differentials is documented, including the vacuum-actuated locking. It is a purely mechanical, driver-controlled system — there is no Haldex and no electronics deciding when it engages.

Can I use a modern OBD scanner on this car?

No. These are pre-OBD-II cars. Diagnosis is done with a multimeter and the wiring diagrams, and on later cars with blink codes. The documentation is built around that, because a modern scan tool will tell you nothing here.

Are parts still available for these?

Many mechanical and service parts are, but you must order for the correct generation — B2 and B3 share very little. The documentation makes the platform identity explicit so you buy the right components the first time, which is where most money gets wasted on these cars.