VOLKSWAGEN AHA — 2.8L Engine
2.8L · 193 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | AHA |
| Capacity | 2771 cc |
| Idle speed | 740 - 860 rpm |
| Idle speed | 620 - 740 rpm |
| Normal | 9 - 14 bar |
| Minimum | 7.5 bar |
| Differential limit between cylinders | 3 bar |
| Oil pressure | 2.0 / 2000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Bosch Motronic 5.9.2 F |
| Number of cylinders | 6 |
| Firing order | 1 - 4 - 3 - 6 - 2 - 5 |
| Spark plugs (make and type) | NGK BKR6EKUB |
| Spark plug gap | 0.8 mm |
| Injection pressure/system pressure | 3.5 4.0 bar |
Cooling system
| Cap pressure | 1.4 - 1.6 bar |
| Thermostat opens at | 86 °C |
| Thermostat fully open at | 102 °C |
| Stage 1/Fan 1 | 92 - 97 °C |
| Stage 2/Fan 2 | 99 - 105 °C |
Electrical
| Battery | 44 / 62 / 74 Ah |
| Alternator | 90 / 120 A |
Brakes
| Disc thickness, front | 25.0 mm |
| Disc thickness, front, min. | 23.0 mm |
| Disc thickness, rear | 10.0 mm |
| Disc thickness, rear, min. | 8.0 mm |
Steering and wheel alignment
| Toe-in, front | 0°10' ± 02' ° |
| Camber, front | 1BA/1BP: -0°35' ± 25' 1BE: -0°50' ± 25' 1BB/1BF: -0°20' ± 25' ° |
| Camber, front | 1BF: -0°35' ± 25' ° |
| Max. difference left side - right side | 30' mm |
| Toe-in, rear | 1BA/1BB/1BF: 0°20' +15'/-10' 1BE: 0°28' +15'/-10' 1BP: 0°14' +15'/-10' ° |
| Toe-in, rear | 0°16' ± 10' ° |
| Camber, rear | -1°30' ± 20' ° |
| Camber, rear | -0°40' ± 30' ° |
Wheels and tyres
| Tyre size | 195/65 R 15 |
| Optional | 205/60 R 15 |
| Optional | 205/55 R 16 |
| Front tyre pressure | 2.6 - 2.7 bar |
| Rear tyre pressure | 2.4 - 3.1 bar |
| Spare tyre pressure | 4.2 bar |
Capacities
| Engine sump, incl. filter | 5.7 6.0 l |
| Manual transmission | 012/01W 01A |
| Gearbox refill | 012/01W: 2.25 01A: 2.75 l |
| Automatic transmission | 01V |
| Gearbox refill | 2.6 l |
| Differential | 0.75 l |
| Transfer box | 0.8 l |
| Differential, 4WD rear | 1.5 l |
| Cooling system | 8.0 l |
| Air-conditioner refrigerant | 650 - 700 g |
| Air-conditioner refrigerant | 700 - 750 g |
| Air-conditioner compressor oil | 250 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 60 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Big-end bearing cap | 30 Nm + 90° Nm |
| Inlet manifold | 25 Nm |
| Oxygen sensor | 50 Nm |
| Knock sensor | 20 Nm |
| Oil plug | 30 Nm |
| Spark plugs | 30 Nm |
| Front hub | M14: 115 Nm + 180° M16: 190 Nm + 180° Nm |
| Rear hub | 60 Nm |
| Rear hub | M14: 115 Nm + 180° M16: 190 Nm + 180° Nm |
| Wheel bolts | 120 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, carrying 500 torque figures.
- Removing and installing toothed belt · 56 torque figures
- Removing engine · 41 torque figures
- Removing and installing coolant pump · 53 torque figures
- Installing engine · 36 torque figures
- Removing, installing and tensioning toothed belt · 29 torque figures
- Removing and installing sump (top section) · 25 torque figures
- Removing and installing drive plate · 28 torque figures
- Stress-free alignment of exhaust system · 54 torque figures
- Cylinder head - exploded view · 21 torque figures
- Crankshaft - exploded view · 19 torque figures
- Installing cylinder head · 14 torque figures
- Removing and installing drive plate · 17 torque figures
- Assembly overview - crankshaft · 15 torque figures
- Removing and installing upper part of sump · 11 torque figures
- Renewing sealing flange (gearbox end) · 9 torque figures
- Removing and installing poly V-belt · 11 torque figures
- Removing and installing thermostat · 9 torque figures
- Measuring radial clearance of crankshaft · 11 torque figures
- Draining and filling cooling system · 6 torque figures
- Measuring radial clearance of crankshaft · 10 torque figures
- Removing and installing coolant pump · 6 torque figures
- Crankshaft - exploded view of components · 8 torque figures
- Removing, installing and checking thermostat · 4 torque figures
- Removing and installing fuel tank · 3 torque figures
- Removing and installing camshafts and camshaft adjuster · 4 torque figures
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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.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.