AUDI ABT — 2L Engine
2L · 90 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | ABT |
| Capacity | 1984 cc |
| Idle speed | 750 - 1000 rpm |
| Normal | 9 - 12 bar |
| Minimum | 7 bar |
| Oil pressure | 2.0 / 2000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Bosch Mono-Motronic |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Timing stroboscopic (before TDC) | 6 ± 1 / 850 °/rpm |
| Ignition coil resistance, primary | 0.5 - 1.5 ohms |
| Ignition coil resistance, secondary | 5000 - 9000 ohms |
| Spark plugs (make and type) | Bosch W7DTC |
| Spark plug gap | 0.7 - 0.9 mm |
| CO exhaust gas | < 0.5 % |
| HC | 100 ppm |
| Lambda | 0.97 - 1.03 |
| Oil temperature during test | 80 °C |
| Conditioning catalytic converter | 1 / 2500 min/rpm |
| Fast-idle speed | 2500 - 2800 rpm |
| CO at fast-idle speed | < 0.3 % |
| Closed-loop test at: | 650 - 1100 rpm |
| Lambda change (Delta Lambda) | 0.03 |
Electrical
| Battery | 40 Ah |
| Alternator | 70 A |
Brakes
| Disc thickness, front, min. | 19 mm |
| Disc thickness, rear, min. | 8 mm |
Steering and wheel alignment
| Toe-in, front | 10' ± 10' ° |
| Camber, front | - 45' ± 30' ° |
| Castor, front | 1° 25' ± 30' ° |
| Toe-in, rear | 20' ± 10' ° |
| Camber, rear | -1° ± 20' ° |
Wheels and tyres
| Tyre size | 195/65 R 15 |
| Front tyre pressure | 2.1 bar |
| Rear tyre pressure | 2.1 bar |
Capacities
| Engine sump, incl. filter | 3.0 l |
| Gearbox refill | 2.35 l |
| Gearbox refill | 089: 3.0 097: 2.3 l |
| Differential | 089: 0.75 097: 1.0 l |
| Cooling system | 6.5 l |
| Air-conditioner refrigerant | 650 - 700 g |
| Air-conditioner compressor oil | 250 - 300 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 40 Nm |
| Cylinder head bolts — Stage 2 | 60 Nm |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head bolts — Stage 4 | 90 ° |
| Cylinder head bolts — Stage 1 | 200 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Wheel nuts | 110 Nm |
| Spark plugs | 20 Nm |
Engine codes in the same family
The same code prefix usually means the same block with a different output, fuel or model year. Procedures are often shared — check the code on the engine plate.
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
- Audi 80/100/A6/coupe 4-cyl (2-valve)
- Replacing engine control unit
- Checking wiring between "white" diagnostic connector and engine control unit
- Removing and installing fuel tank with attachments
- Checking lambda probe heating
- Checking Hall sender -G40
- Connecting vehicle diagnostic, testing and information system VAS 5051/ fault reader V.A.G 1551 and selecting functions
- Checking system pressure, fuel pressure regulator and holding pressure
- Checking throttle valve potentiometer -G69
- Checking fuel-pump relay -J17 and actuation
- Checking intake-manifold preheating relay -J81
- Checking coolant temperature sender -G62
- Checking and adjusting idling switch -F60
- Removing and installing fuel gauge sender -G
- Checking gear signal
- Checking ignition timing retardation on changing gear
- Checking injector
- Checking activated charcoal filter solenoid valve -N80
- Checking idling-speed switch
- Removing and installing throttle cable - Vehicles with 6-cylinder engine
- Checking Lambda control
- Checking Lambda probe -G39 and Lambda control
- Checking throttle valve positioner -V60
- Checking output stage for ignition transformer
Got a ABT problem? Ask for free.
Describe the symptoms — TorqFix replies with a diagnosis cited from verified workshop data.
Get free diagnosis →Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.