Differential and final drive gear adjustment (BMW 3 Series E46)

Table of contents: Adjusting the main gear ↓ Differential and final drive…↓

Adjusting the main gear

The location of the contact patch in the engagement of the main transmission gears (the left column is the forward side, the right column is the reverse side):

a and b incorrect contact, it is necessary to move the driving gear away from the driven one by reducing the thickness of the adjusting washer,
c and d incorrect contact, it is necessary to move the driving gear towards the driven one, increasing the thickness of the adjusting washer,
e correct location of the contact patch.

Differential and final drive components

1 — main gear housing
2 — main gear housing cover gasket
3 — main gear housing cover
4 — main transmission gears
5 — rotor
6 — differential housing
7, 8 — limited slip differential housing
9 — satellite crosspiece
10 - differential side gears
11 - satellites
13, 14 — friction discs of the clutch
15 - spring washers
18 — drive shaft flange
25 — drive shaft

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Article verified: Sevastyanov Nikolay

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