- Engine: Engine Code. A sequence of letters and numbers. This includes the engine block type and engine family, but may also include other information.
- Capacity: Capacity/Filter capacity in litres(liters). Engine oil fill quantity (Service fill).
- Intervals: Oil Change Intervals (use: normal). Engine oil should be changed at the latest after this time or after miles/km, whichever comes first.
The oil filter must be replaced every time the oil is changed, unless the car's owner's manual recommends otherwise.
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 | Engine | Capacity | Intervals |
|---|---|---|---|
| A4 1.6 (74 kW) (1994 – 2001) | ADP, AHL, ANA, ARM | 3.5 l | 15 000 km / 12 months |
| A4 1.6 (75 kW) (2000 – 2001) | ALZ | 3.5 l | 15 000 km / 12 months |
| A4 1.8 (92 kW) (1994 – 2001) | ADR, APT, ARG | 3.5 l | 15 000 km / 12 months |
| A4 1.8 quattro (92 kW) (1994 – 2001) | ADR, APT, ARG | 3.5 l | 15 000 km / 12 months |
| A4 1.8 Turbo (110 kW) (1994 – 2001) | AEB, ANB, APU, ARK, AWT | 3.5 l | 15 000 km / 12 months |
| A4 1.8 Turbo quattro (110 kW) (1994 – 2001) | AEB, ANB, APU, ARK, AWT | 3.5 l | 15 000 km / 12 months |
| A4 1.8 Turbo (132 kW) (1997 – 2001) | AJL | 3.5 l | 15 000 km / 12 months |
| A4 1.8 Turbo quattro (132 kW) (1997 – 2001) | AJL | 3.5 l | 15 000 km / 12 months |
| A4 2.4 V6 (120 kW) (1997 – 2001) | AMM, APZ | 6 l | 15 000 km / 12 months |
| A4 2.4 V6 (121 kW) (1997 – 2001) | AGA, ALF, AML, APS, ARJ | 6 l | 15 000 km / 12 months |
| A4 2.4 V6 quattro ((120 kW) (1997 – 2001) | AMM, APZ | 6 l | 15 000 km / 12 months |
| A4 2.4 V6 quattro ((121 kW) (1997 – 2001) | AGA, ALF, AML, APS, ARJ | 6 l | 15 000 km / 12 months |
| A4 2.6 V6 (110 kW) (1994 – 1997) | ABC | 5 l | 15 000 km / 12 months |
| A4 2.6 V6 quattro (110 kW) (1994 – 1997) | ABC | 5 l | 15 000 km / 12 months |
| A4 2.8 V6 (128 kW) (1994 – 1997) | AAH | 5 l | 15 000 km / 12 months |
| A4 2.8 V6 quattro (128 kW) (1994 – 1997) | AAH | 5 l | 15 000 km / 12 months |
| A4 2.8 V6 (140 kW) (1999 – 2001) | ATX | 6 l | 15 000 km / 12 months |
| A4 2.8 V6 quattro (140 kW) (1999 – 2001) | ATX | 6 l | 15 000 km / 12 months |
| A4 2.8 V6 (142 kW) (1997 – 2001) | ACK, APR, AQD | 6 l | 15 000 km / 12 months |
| A4 2.8 V6 quattro (142 kW) (1997 – 2001) | ACK, APR, AQD | 6 l | 15 000 km / 12 months |
| S4 2.7 V6 Biturbo quattro (1997 – 2001) | AGB, AZB | 6 l | 15 000 km / 12 months |
| RS4 2.7 V6 Biturbo quattro (2000 – 2001) | ASJ, AZR | 15 000 km / 12 months | |
| A4 1.9 DI (55 kW) (1996 – 2000) | AFF | 3.5 l | 15 000 km / 12 months |
| A4 1.9 TDI (66 kW) (1994 – 2001) | 1Z, AHU, AHH | 3.5 l | 15 000 km / 12 months |
| A4 1.9 TDI (81 kW) (1996 – 2000) | AFN, AVG | 3.8 l | 15 000 km / 12 months |
| A4 1.9 TDI quattro (81 kW) (1996 – 2000) | AFN, AVG | 3.8 l | 15 000 km / 12 months |
| A4 1.9 TDI (85 kW) (1999 – 2001) | AJM, ATJ | 3.8 l | 15 000 km / 12 months |
| A4 1.9 TDI quattro (85 kW) (1999 – 2001) | AJM, ATJ | 3.8 l | 15 000 km / 12 months |
| A4 2.5 TDI V6 (110 kW) (1998 – 2001) | AFB, AKN | 5.5 l | 15 000 km / 12 months |
| A4 2.5 TDI V6 quattro (110 kW) (1998 – 2001) | AFB, AKN | 5.5 l | 15 000 km / 12 months |