General Information: Components
O-rings, Gaskets and Seals
- Always replace O-rings, gaskets and seals.
- Always clean separation surfaces.
Before Installing
- Before installing the radial shaft seals, lightly oil the outer circumference and fill the space between the sealing lips -arrow- halfway with sealing grease G 052 128 A1.
- Before installing the flange shaft/driveshaft radial shaft seals, lightly lubricate the outer circumference and the space between the sealing lips with high performance Haldex clutch oil.
- The open side of the gaskets points toward the fluid to be sealed in.
After Installation
- Axle oil level in rear final drive, checking REAR FINAL DRIVE OIL LEVEL, CHECKING AND FILLING .
- Check the oil level in the Haldex clutch HALDEX CLUTCH OIL LEVEL, CHECKING .
Circlips
- Do not over stretch circlips.
- Always replace damaged or overstretched circlips.
- Circlips must be properly seated in the base of the groove.
- Replace spring pins. Installation position: Slit -A- should in line with the line of force -arrow-.
Bolts and Nuts
- Replace self-locking bolts and nuts.
- Loosen and tighten bolts and nuts for securing covers and housing parts in diagonal sequence.
- Clean screws installed with locking compound with a wire brush. Replace with locking compound AMV 185 101 A1.
- Remove locking compound residue in threaded holes with a thread tap. Otherwise, screws may shear off during next removal.
- Delicate parts must not be cross-threaded. Loosen and tighten in stages in a diagonal sequence.
- The tightening specification stated apply to non lubricated nuts and bolts.
- Only wax all the contact surfaces on the threaded connection bolts and nuts after installing.
Mount
- Install needle bearings with the lettering on the bearing (the side with thicker metal) facing towards the drift.
- Lubricate all gearbox bearings with gear oil.
- Taper roller bearings fitted to one shaft must be replaced as a set. Use same make of bearings.
- Heat inner races to approximately 100° C before installing.
- Do not interchange inner and outer bearing races with those from other bearings of the same size, bearings are paired.
Adjusting Shims
- Measure shims at several points using a micrometer. Varying tolerances make it possible to measure the required shim thickness exactly.
- Inspect for burrs and signs of damage.
- Install only shims that are in perfect condition.