APR engine — Audi 2.8 (2.8L)
2.8L · 193 hp
Engine overview
Manufacturer
AUDI / VOLKSWAGEN
Displacement
2.8 L
Power
193 hp
Production years
1998-2003
Fuel type
Petrol
Vehicles with this engine
4B
3B
8D
4D
Torque figures by job
From the step-by-step procedures for this engine — each figure sits in the step that uses it.
Removing and installing sump (top section)
- 5 Nm (3.7 lb-ft) — Fit top section of sump in position (2nd mechanic required) and pre-tighten bolts (1) and…
Draining and filling cooling system
- 20 Nm (15 lb-ft) — Renew O-ring and tighten drain plug (arrow) to
- 15 Nm (11 lb-ft) — Renew seal and tighten bleed screw (arrow) to
Draining and filling cooling system
- 20 Nm (15 lb-ft) — Renew O-ring and tighten drain plug (arrow) to
- 15 Nm (11 lb-ft) — Renew seal and tighten bleed screw (arrow) to
Draining and replenishing coolant
- 20 Nm (15 lb-ft) — Replace O-ring and tighten drain plug (arrow) to
- 15 Nm (11 lb-ft) — Replace O-ring and tighten bleed screw (arrow) to
- 10 Nm (7.4 lb-ft) — Install bearing caps (0), (3) and (5) and also tighten to
- 10 Nm (7.4 lb-ft) — Tighten inner nuts (1) for cylinder head cover to
Removing and installing upper part of sump
- 5 Nm (3.7 lb-ft) — Position upper part of sump (2nd mechanic required) and initially tension upper part of…
- 45 Nm (33 lb-ft) — Tighten bolts securing upper part of sump to gearbox to
Removing and installing toothed belt
- 15 Nm (11 lb-ft) — Apply torque wrench at hexagon socket of tensioning roller and tension belt with a torque…
- 30 Nm (22 lb-ft) — Tighten camshaft sprockets to
Removing and installing toothed belt
- 15 Nm (11 lb-ft) — Tension belt by applying a torque of
- 30 Nm (22 lb-ft) — Tighten camshaft sprockets to
- 10 Nm (7.4 lb-ft) — Tighten bolts (1) to
Removing and installing front sealing flange - "“engine generation III”"
- 10 Nm (7.4 lb-ft) — Tighten bolts (1) to
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | APR |
| Capacity | 2771 cc |
| Idle speed | 710 - 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) | Motronic ME7.1 |
| Number of cylinders | 6 |
| Firing order | 1 - 4 - 3 - 6 - 2 - 5 |
| Ignition coil resistance, secondary | 8000 - 14000 ohms |
| Spark plugs (make and type) | VW/Audi 101 000 035 HJ NGK BKR6EKUB |
| Spark plug gap | VW/Audi: 0.4 - 0.6 NGK: 0.8 mm |
| Injection pressure/system pressure | 3.5 4.0 bar |
| Injector resistance | 13.5 - 15.5 ohms |
| CO exhaust gas | < 0.5 % |
| Lambda | 0.97 - 1.03 |
| Lambda change (Delta Lambda) | 0.03 |
| Oil temperature during test | 80 °C |
| Fast-idle speed | 2500 - 2800 rpm |
| CO at fast-idle speed | < 0.3 % |
| Closed-loop test at: | 610 - 960 520 - 840 (4WD) rpm |
Cooling system
| Cap pressure | 1.4 - 1.6 bar |
| Thermostat opens at | 86 - 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 |
Capacities
| Engine sump, incl. filter | 6.0 (> 05/1999) 5.7 (05-1999 >) 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 |
Emissions
| Emission code | 70/220*1996/69 |
| Emission standard | Euro 2 (09/1997 ->) |
| CO2 average | 252 - 254 g/km |
| CO | 0.629 - 1.063 g/km |
| HC NOx | 0.318 - 0.359 g/km |
| Emission code | 70/220*1999/102B |
| Emission standard | Euro 4 (09/2000 ->) |
| CO2 average | 252 - 257 g/km |
| CO | 0.275 g/km |
| HC | 0.028 g/km |
| NOx | 0.023 g/km |
| CO2 average | 262 - 264 g/km |
| CO | 0.489 - 1.038 g/km |
| HC NOx | 0.133 - 0.398 g/km |
| CO2 average | 264 - 266 g/km |
| CO | 0.295 g/km |
| HC | 0.052 g/km |
| NOx | 0.012 g/km |
| Emission standard | Euro 2 (12/1997 ->) |
| CO2 average | 257 - 259 g/km |
| CO | 0.202 - 1.063 g/km |
| HC NOx | 0.082 - 0.359 g/km |
| CO2 average | 259 - 262 g/km |
| CO2 average | 266 - 269 g/km |
| CO | 0.146 - 1.038 g/km |
| CO2 average | 269 g/km |
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 – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing and installing coolant pump · 53 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing, installing and tensioning toothed belt – VW · 29 torque figures
- Removing and installing sump (top section) – Audi A6 C5 · 25 torque figures
- Removing and installing drive plate – VW Phaeton · 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 – Audi A3 · 14 torque figures
- Removing and installing drive plate – Audi A4 B5 · 17 torque figures
- Assembly overview - crankshaft · 15 torque figures
- Removing and installing upper part of sump – VW Touareg I · 11 torque figures
- Renewing sealing flange (gearbox end) – Audi A3 · 9 torque figures
- Removing and installing poly V-belt – Audi A6 C5 · 11 torque figures
- Removing and installing thermostat · 9 torque figures
- Measuring radial clearance of crankshaft – Audi A3 · 11 torque figures
- Draining and filling cooling system – Audi Q7 · 6 torque figures
- Measuring radial clearance of crankshaft · 10 torque figures
- Removing and installing coolant pump – Audi A1 · 6 torque figures
- Crankshaft - exploded view of components · 8 torque figures
- Removing, installing and checking thermostat – Audi · 4 torque figures
- Removing and installing fuel tank – VW Touran II · 3 torque figures
- Removing and installing camshafts and camshaft adjuster – Audi · 4 torque figures
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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.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.