AUDI / VOLKSWAGEN AHL — 1.6L Engine
1.6L · 101 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | AHL |
| Capacity | 1595 cc |
| Idle speed | 760 - 960 rpm |
| Normal | 10 - 13 bar |
| Minimum | 7.5 bar |
| Differential limit between cylinders | < 3 bar |
| Oil pressure | 3.0-4.5 / 2000 bar/rpm |
| Oil pressure | 2.0 bar/rpm |
| Capacity | 1781 cc |
| Normal | 10.0 - 13.0 bar |
| Differential limit between cylinders | < 3.0 bar |
| Oil pressure | 3.0-4.5 / 3000 2.0 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Simos 2 |
| Number of cylinders | 4 |
| Firing order | 1 - 3 - 4 - 2 |
| Ignition coil resistance, primary | 0.5 - 1.5 ohms |
| Ignition coil resistance, secondary | 4000 - 6000 ohms |
| Spark plugs (make and type) | Bosch F7 LTCR NGK BKUR6ET10 Beru FGH7DTURX |
| Spark plug gap | 0.9 - 1.1 mm |
| Injection pressure/system pressure | 3.5 4.0 bar |
| 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: | 660 - 1060 rpm |
| Conditioning catalytic converter | 2 min |
| Spark plugs (make and type) | NGK BKUR6ET-10 Bosch F7 LTCR |
| Fast-idle speed | 2500-2800 rpm |
Cooling system
| Cap pressure | 1.4 - 1.6 bar |
| Thermostat opens at | 86 °C |
| Stage 1/Fan 1 | 92 - 97 °C |
| Stage 2/Fan 2 | 99 - 105 °C |
Electrical
| Battery | 44 / 62 / 74 Ah |
| Alternator | 70 / 90 / 120 A |
Brakes
| Disc thickness, front | 22.0 mm |
| Disc thickness, front, min. | 20.0 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' ° |
| Camber, rear | -1°30' ± 20' ° |
Wheels and tyres
| Tyre size | 195/65 R 15 |
| Optional | 205/60 R 15 |
| Optional | 205/55 R 16 |
| Front tyre pressure | 1.9 - 2.1 bar |
| Rear tyre pressure | 1.9 - 2.5 bar |
| Spare tyre pressure | 4.2 bar |
Capacities
| Engine sump, incl. filter | 3.8 l |
| Manual transmission | 012/01W |
| Gearbox refill | 2.25 l |
| Automatic transmission | 01N |
| Gearbox refill | 3.5 l |
| Differential | 1.0 l |
| Cooling system | 7.0 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 | 40 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Flywheel | 60 Nm + 90° Nm |
| Main bearing cap | 65 Nm + 90° Nm |
| Big-end bearing cap | 30 Nm + 90° Nm |
| Oil plug | 30 Nm |
| Oxygen sensor | 50 Nm |
| Spark plugs | 25 Nm |
| Front hub | M14: 115 Nm + 180° M16: 190 Nm + 180° Nm |
| Rear hub | 60 Nm |
| Wheel bolts | 120 Nm |
Emissions
| Emission code | 70/220*1996/69 |
| Emission standard | Euro 2 (12/1997 ->) |
| CO2 average | 192 - 194 g/km |
| CO | 0.713 - 0.844 g/km |
| HC NOx | 0.204 - 0.224 g/km |
| Emission code | 70/220*1999/102B |
| Emission standard | Euro 4 (08/2000 ->) |
| CO2 average | 187 g/km |
| CO | 0.389 g/km |
| HC | 0.049 g/km |
| NOx | 0.030 g/km |
| Emission standard | Euro 2 |
| CO2 average | 209 - 216 g/km |
| CO | 0.446 - 0.593 g/km |
| HC NOx | 0.221 - 0.290 g/km |
| CO2 average | 197 - 202 g/km |
| CO2 average | 192 g/km |
| CO2 average | 214 - 218 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 57 torque figures.
- Stress-free alignment of exhaust system · 54 torque figures
- Removing - vehicles with engine code letters AHL, ARM
- Removing - vehicles with engine code letters ANA
- Removing toothed belt from camshaft sprocket · 1 torque figures
- Installing (adjusting valve timing) · 1 torque figures
- Draining · 1 torque figures
- Checking voltage supply of secondary air pump relay J299.
- Checking voltage supply of secondary air pump motor V101
- Testing lambda probe signal wiring and activation
- Performing adaption of throttle valve control part
- Checking engine speed sender
- Checking lambda probe heating
- Testing data exchange between engine control unit / ABS control unit / gearbox control unit
- Checking activation of exhaust gas recirculation valve N18
- Checking activation of secondary air pump relay
- Checking activation
- Exhaust manifold, front exhaust pipe and catalyst with attachments
- Testing idling speed
- Removing and installing parts of lubrication system
- Dismantling and assembling piston and conrod
- Removing and installing fuel tank with its attachments and fuel filter
- Testing air conditioner compressor shut-off
- Testing twin-spark ignition system with two ignition coils
- Testing fuel pump (electrical test)
- Removing and installing fuel delivery unit - vehicles with 6-cylinder turbo engine
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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.