Repair Information: Components

Rear Final Drive 

• Allocate bolts and other components according to final drive code .
• When installing, check the oil level in the rear final drive (Refer to GEAR OIL, CHECKING LEVEL ) and the ATF level (Refer to ATF LEVEL, CHECKING, 0BE, 0BF ) and fill if necessary.
• Capacities and specifications, refer to CODE, TRANSMISSION ALLOCATION, RATIOS AND CAPACITIES .
• Clean the contact surfaces when installing the brackets as well as any waxed components. Contact surfaces must be free of grease and wax.
• Always clean the connection locations and the area around them before loosening.

Oil, Environmental and Disposal Regulations 

• Handle ATF, transmission fluid and other oils with care.
• Dispose of drained ATF properly.
• Follow the legal environmental and disposal regulations.
• Follow the information provided on oil packaging.

ATF and Gear Oil 

Rear final drive 0BF and 0BE works with separated oil chambers for the ATF and gear oil.

• For the hydraulics (hydraulic control unit and left and right chambers) use only ATF which can be obtained as replacement part.
• For the final drive (gear set, differential) use only the gear oil which can be obtained as replacement part.
• Other ATF or gear oil can cause function problems.

Shaft Seals 

• Lightly coat the shaft seal on the outer diameter with oil before installing.
• The open side of the shaft seals point toward the fluid to be sealed in.
• After replacing any of the shaft seals, check the gear oil level (Refer to GEAR OIL, CHECKING LEVEL ) or the ATF level in the final drive (Refer to ATF LEVEL, CHECKING, 0BE, 0BF ).

Shaft Seal for the Flange/Driveshaft 

• Fill the space between the sealing lips -arrow- half way with Sealing Grease G 052 128 A1.

Flange Shaft Seals 

• Coat the space between the sealing lips -arrow- with ATF.

O-rings, Gaskets and Seals 

• O-rings, gaskets and seals must be replaced.
• After removing gaskets, examine contact surface on housing/shaft for burr resulting from removal or for other signs of damage.
• Thoroughly clean housing joint surfaces before assembling.
• Lightly lubricate O-rings before installing to prevent them from being crushed when inserting.
• After replacing any of the gaskets, seal and O-rings, check the gear oil level (Refer to GEAR OIL, CHECKING LEVEL ) or the ATF level in the final drive (Refer to ATF LEVEL, CHECKING, 0BE, 0BF ).

Fasteners 

• Do not overstretch the circlips.
• Always replace damaged or stretched circlips.
• The circlips must fit completely inside the groove.
• Replace the adapter sleeves. Installed position: the slit -A- should align with the line of force -arrow-.

Bolts and Nuts 

• Always loosen or tighten bolts and nuts on covers and housings diagonally.
• Parts which are particularly sensitive to distortion must be kept straight when removing and installing; loosen or tighten diagonally in stages.
• The tightening specifications stated apply to non-oiled nuts and bolts.
• Always replace self-locking nuts and bolts.
• Clean threads of bolts that were applied with locking fluid using a wire brush (does not apply to driveshaft bolts: these must be replaced). Next, use Locking Compound AMV 185 101 A1 to install the bolts.
• Threaded holes with self-locking bolts or bolts coated with locking fluid must be cleaned, for example using a thread tap. Otherwise there is a risk that the bolts will shear the next time they are removed.