Rear Final Drive 0AR (02XA,0A3A,09EA,09LA Transmission)
General Repair Information
To ensure perfect and successful transmission repairs, the greatest care and cleanliness as well as the use of good and proper tools is essential. The usual basic safety precautions also apply when carrying out vehicle repairs.
A number of generally applicable instructions for individual repair procedures, which are otherwise mentioned at various points in the Repair Information, are summarized here under the topic Components. It applies to this repair information.
Air Suspension Lift Mode
Activate the lift mode before lifting the vehicle on a frame contact hoist (for example when there is no weight on the wheels).
Components
Rear Final Drive
• Allocate bolts and other components according to final drive code.
• When installing a new rear final drive unit, check the oil level in the rear final drive and top off, if necessary. Refer to => [ Gear Oil in Rear Final Drive, Checking ] Testing and Inspection.
• Capacities and Specifications, Audi A4, from MY 2001, refer to => [ Transmission Allocations, Ratios and Capacities, from MY 2001 ] Transmission Allocations, Ratios and Capacities, From MY 2001,
• Capacities and Specifications, Cabriolet from MY 2003, refer to => [ Transmission Allocations, Ratios and Capacities, from MY 2003 ] Transmission Allocations, Ratios and Capacities, From MY 2003
• Capacities and Specifications, Audi A6, from MY 2005, refer to => [ Transmission Allocations, Ratios and Capacities, from MY 2005 ] Transmission Allocations, Ratios and Capacities, From MY 2005,
• Capacities and Specifications, Audi A8, from MY 2003, refer to => [ Transmission Allocations, Ratios and Capacities, from MY 2003 ] Transmission Allocations, Ratios and Capacities, From MY 2003,
• Clean contact surfaces when repairing mounting brackets and waxed components. Contact surfaces must be free of grease and wax.
• Thoroughly clean all connections and the surrounding area before disconnecting.
O-rings, gaskets, seals
• O-rings, gaskets and seals must be replaced.
• 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.
• Before installing radial shaft seals, lightly oil outer circumference and fill space between sealing lips - arrow - halfway with sealing grease (G 052 128 A1).
• The open side of the gaskets points toward the fluid to be sealed in.
• Lightly lubricate O-rings before installing to prevent them from being crushed when inserting.
• After replacing seals and gaskets, check and, if necessary, top off oil level in final drive. Refer to => [ Gear Oil in Rear Final Drive, Checking ] Testing and Inspection.
Fasteners
• Do not stretch the circlips.
• Always replace damaged or over-stretched circlips.
• Circlips must locate properly in the groove.
• Replace spring pins. Installed position: the slit - A - should be in line with the line of force- arrow -.
Bolts and Nuts
• Loosen and tighten the cover and housing mounting bolts or nuts in a diagonal sequence.
• Delicate parts must not be cross-threaded. Loosen and tighten in stages in a diagonal sequence.
• The tightening specifications stated apply to non-oiled nuts and bolts.
• Replace self-locking bolts and nuts.
• Clean threads of bolts that were applied with locking fluid using a wire brush (does not apply to driveshaft bolts: these must be replaced). Apply locking fluid (AMV 185 101 A1) before reinstalling.
• Threaded holes into which self-locking bolts or bolts coated with locking fluid are screwed, must be cleaned (for example tap). Otherwise there is a risk that the bolts will shear the next time they are removed.