Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1998 Audi CabrioletFACTORY OEM SERVICE PROCEDURE
Engine Controls - Specifications: Capacities
CAUTION:
When battery is disconnected, radio will go into anti-theft protection mode. Obtain radio anti-theft protection code from owner prior to servicing vehicle.
BATTERY SPECIFICATIONS
| Application | Amp Hr. Rating |
|---|---|
| A4 | 70 |
| Cabriolet | 63 |
FLUID CAPACITIES
| Application | Quantity | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crankcase (Includes Filter) | |||||||||||||||
| 1.8L Turbo | 4.3 Qts. (4.0L) | ||||||||||||||
| 2.8L | 5.3 Qts. (5.0L) | ||||||||||||||
| Cooling System (Includes Heater) | |||||||||||||||
| A4 | 6.9 Qts. (6.5L) | ||||||||||||||
| Cabriolet | 11.6 Qts. (11.0L) | ||||||||||||||
| Automatic Transmission | |||||||||||||||
| Initial Fill | |||||||||||||||
| A4 | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L (2) | 9.25 Qts. (8.8L) | ||||||||||||||
| Cabriolet (3) | 5.7 Qts. (5.4L) | ||||||||||||||
| Fluid Change | |||||||||||||||
| A4 | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L (2) | (4) 2.7 Qts. (2.6L) | ||||||||||||||
| Cabriolet | (5) | ||||||||||||||
| Final Drive (Differential) | |||||||||||||||
| Front Differential | |||||||||||||||
| Initial Fill | |||||||||||||||
| A4 (SAE 75W-90 Synthetic) | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | .84 Qt. (.8L) | ||||||||||||||
| Cabriolet (SAE 75W-90) | 1.1 Qts. (1.0L) | ||||||||||||||
| Fluid Change | |||||||||||||||
| A4 (SAE 75W-90 Synthetic) | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | .79 Qt. (.75L) | ||||||||||||||
| Cabriolet (SAE 75W-90) | (5) | ||||||||||||||
| Center Differential | |||||||||||||||
| Initial Fill (SAE 75W-90 Synthetic) | |||||||||||||||
| A4 Quattro | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | (1) | ||||||||||||||
| Fluid Change (SAE 75W-90 Synthetic) | |||||||||||||||
| A4 Quattro | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | .79 Qt. (.75L) | ||||||||||||||
| Rear Differential | |||||||||||||||
| Initial Fill (SAE 90W) | |||||||||||||||
| A4 Quattro | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | 2.0 Qts. (1.9L) | ||||||||||||||
| Fluid Change (SAE 90W) | |||||||||||||||
| A4 Quattro | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | 1.9 Qts. (1.8L) | ||||||||||||||
| Manual Transmission (SAE 75W-90 Synthetic) | |||||||||||||||
| A4 (Except Quattro) | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | 2.4 Qts. (2.3L) | ||||||||||||||
| A4 Quattro | |||||||||||||||
| 1.8L Turbo | (1) | ||||||||||||||
| 2.8L | 2.9 Qts. (2.7L) | ||||||||||||||
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Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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