ADP engine — Audi 1.6 (1.6L)
1.6L · 101-103 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | ADP |
| Capacity | 1595 cc |
| Idle speed | 760 - 960 rpm |
| Minimum | 7.5 bar |
| Oil pressure | 2.0 / 2000 bar/rpm |
| Normal | 9.0 - 14.0 bar |
| Differential limit between cylinders | < 3.0 bar |
| Oil pressure | 3.0-5.0 / 3000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Bosch Motronic M 3.2 |
| Number of cylinders | 4 |
| Firing order | 1 - 3 - 4 - 2 |
| Timing stroboscopic (before TDC) | 0 ± 3 / 760 - 960 °/rpm |
| Ignition coil resistance, primary | 0.5 - 1.5 ohms |
| Ignition coil resistance, secondary | 5000 - 9000 ohms |
| Spark plugs (make and type) | NGK BKUR 6 ET Bosch F 7 LTCR |
| Spark plug gap | NGK: 0.7 - 0.9 Bosch: 0.9 - 1.1 mm |
| Injection pressure/system pressure | 4.0 ± 0.1 / 3.5 ± 0.1 bar |
| CO exhaust gas | < 0.5 % |
| CO2 | 13 % |
| 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: | 720 - 1000 rpm |
| Conditioning catalytic converter | 2 min |
| Fuel system (make and type) | Motronic M3.2 |
| Timing stroboscopic (before TDC) | 0-3 / 820-900 °/rpm |
| Spark plugs (make and type) | NGK BKUR 6 ET Bosch F7 LTCR |
| Spark plug gap | NGK: 0.7-0.9 Bosch: 0.9-1.1 mm |
| Injection pressure/system pressure | 3.5 4.0 bar |
| CO2 | 14.5 - 16.0 % |
| HC | < 200 ppm |
| O2 | 0.1 - 0.5 % |
Cooling system
| Cap pressure | 1.4 - 1.6 bar |
| Thermostat opens at | 85 °C |
| Stage 1/Fan 1 | 92 - 97 °C |
| Stage 2/Fan 2 | 99 - 105 °C |
Electrical
| Battery | 54 Ah |
| Alternator | 90 A |
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 | 60 Nm |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head bolts — Stage 4 | 90 ° |
| Front hub | M14 |
| Front hub | M16 |
| Wheel nuts | 120 Nm |
| Spark plugs | 30 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.
- Checking auxiliary signals
- Checking throttle valve control part
- Dismantling and assembling engine
- Checking Lambda control
- Servicing valve gear
- Servicing valve gear
- Checking fuel pump
- Fitting locations overview
- Removing and installing parts of the injection system
- Removing and installing parts of the lubrication system
- Removing and installing parts of exhaust system
- Testing lambda probe signal wiring and activation
- Removing and installing fuel tank with attachments
- Checking lambda probe heating
- Checking air mass meter -G70
- Dismantling and assembling pistons and conrods
- Checking Hall sender -G40
- Testing injection quantity, leak tightness and spray pattern of injectors
- Connecting fault reader V.A.G 1551 and selecting functions
- Checking engine speed sender -G28
- Checking solenoid valve for boost pressure control -N75
- Exhaust manifold, front exhaust pipe and catalyst with attachments
- Toothed belt drive
- Removing and installing fuel tank with its attachments and fuel filter
- Removing and installing throttle valve control part
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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.
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.