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.
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HOMESERVICE MANUALSAUDI1998A4 AVANT QUATTRO, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - 01VREPAIR INSTRUCTIONSO-RINGS, GASKETS, SEALS
1998 Audi A4 Avant Quattro, Automatic
O-Rings, Gaskets, Seals
1998 Audi A4 Avant Quattro, AutomaticSECTION O-Rings, Gaskets, Seals
- Always replace O-rings, gaskets and sealing rings.
- After removing gaskets and seals, always inspect the contact surfaces at housing or shaft for burrs resulting from removal or for other signs of damage.
- Thoroughly clean housing joint surfaces before assembling and apply sealing compound AMV 188 200 03.
- Before installing, fill gap between sealing lips of radial-shaft seals half way with sealing grease 052 128 A1.
- The open side of the seals face toward the fluid to be sealed in.
- For installation, lightly coat outer circumference and sealing lip with ATF or transmission oil, depending on the installation location.
- Lightly lubricate O-rings before installing, this prevents the rings from being pinched when inserting.
- Use only ATF in areas near ATF. Other lubricating substances cause functional problems in the hydraulic transmission control.
- When pressing in new seals, make sure the sealing lip does not run on the same point as the sealing lip of the old seal (use insertion depth tolerances).
- After installing, check and if necessary correct fluid levels in the affected area. ATF in planetary gear, Gear oil in front final drive, Transmission oil in center differential, Transmission oil in rear final drive, and Capacities and specifications. See SERVICING - A/T (01V - WITH 1.8L, 2.7L & 2.8L article.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.