Differential housing
Number | Designation | Model | |||
BA35.31-P-1012-02A | Threaded insert to differential housing | Nm | 50 | ||
BA35.31-P-1013-02A | Fitting to threaded insert | Nm | 40 | ||
BA35.31-P-1014-02A | Union nut, oil hose to fitting | Nm | 35 | ||
BA35.31-P-1017-02A | Banjo bolt, oil hose to threaded inserted | Nm | 25 | ||
Differential
Number | Designation | Model | ||
BF35.31-P-1004-01L | Filling capacity | Differential Ø 215 mm | Liters | 1,2 |
Specifications for Operating Fluids | Sheet | |||
Electrical connection kit
220 589 00 99 00
Set of stop plugs
129 589 00 91 00
Repair materials
Number | Designation | Order number |
BR00.45-Z-1061-01A | Sealant, Omnifit 100H (50 g) | A 002 989 23 71 |
BR00.45-Z-1028-04A | Cleaner from package | Adolf Würth GmbH & Co. KG |
BR00.45-Z-1046-04A | Cleaning spray, Loctite 7063 (150ml) | A 001 986 71 71 10 |
P35.31-2231-06
1 Rear axle differential
1b Banjo bolt
2 Oil lines
2a Sealing rings
3 Threaded insert
M75 Rear axle differential coolant pump
X15/1 Rear axle differential cooling circuit temperature switch connector
Only carry out the oil level check at room temperature and not when the rear axle differential (1) is at operating temperature. Otherwise oil which is needed can run out when the rear axle differential (1) is at operating temperature.
1 Clean area around the banjo bolt (1b) and threaded insert (3).
2 Remove banjo bolt (1b) and remove oil lines (2) with sealing rings (2a).
Collect oil which runs out of the oil line (2) in the authorized container.
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3 Seal oil lines (2) with stop plugs and bind upwards.
The line opening must be located above the filler hole.
4 Unscrew threaded insert (3).
Do not remove if the rear axle differential (1) has to be prefilled.
Collect escaping oil in a suitable container.
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Carry out steps 5 to 14 after replacing the coolant pump (M75), the oil lines, the cooler or rear axle differential (1).
5 Prefill rear axle differential (1) with specified oil quantity.
6 Mount oil lines (2) with sealing rings (2a) and banjo bolt (1b) on rear axle differential (1).
7 Unlock and disconnect connector (X15/1).
8 Connect plug contacts with adapter line from electrical connection kit.
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9 Switch on ignition.
Switch on the ignition twice for approx. 30 s with a discontinuity of 1 min.
Allow the ignition to be switched on for a maximum of 30 s otherwise there is a threat of damage to the coolant pump (M75)!
The running noise of the coolant pump (M75) must get quieter as soon as oil flows through the coolant pump (M75).
If the coolant pump (M75) does not run, determine cause and eliminate subject to separate repair order.
10 Switch off ignition.
11 Detach adapter line and connector (X15/1) plug together connector.
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12 Remove banjo bolt (1b) and remove oil lines (2) with sealing rings (2a).
Collect oil which runs out of the oil lines (2) in the authorized container.
13 Seal oil lines (2) with stop plugs and bind upwards.
The line opening must be located above the filler hole.
14 Unscrew threaded insert (3).
Collect escaping oil in a suitable container.
The threaded insert (3) must be removed from the filler bore, otherwise the rear axle differential (1) will be overfilled, which can lead to leakage and harm to persons, property and the environment!
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15 Check oil level.
When the oil level is correct the oil level reaches to the bottom edge of the filler bore in the rear axle differential (1).
Allow excess oil to flow off. An incorrect oil filling quantity can result in personal injury or damage to property or the environment.
16 Clean the new threaded insert (3) as well as filler bore in the rear axle differential (1).
To prevent leakage, always install a new threaded insert (3) to replace the one removed.
17 Screw new threaded insert (3) into the rear axle differential (1) and tighten.
Apply a drop of sealant at third thread from bottom and immediately install new threaded insert (3).
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18 Mount oil lines (2) with banjo bolt (1b) on rear axle differential (1).
Install new sealing rings (2a).
19 Carry out leak check on rear axle differential (1) and connecting points.