Fastener Tightening Specifications

Component	Fastener Size	Nm
Bevel Box to Transmission Bolt (2)	-	40
Drive Axle Heat Shield to Bevel Box Bolt (2)	-	25
Drain Plug to Transmission	-	45
Mechatronic Cover Bolt (1)	-	10
Oil Filter Housing	-	20
Oil Pump Cover Bolt (1)	-	8
Overflow Tube to Transmission	-	3
Selector Shaft Lever to Selector Shaft Nut	-	20
Transmission Oil Cooler to Transmission Bolt	-	20 + 90°
Transmission Input Speed and Clutch Oil Temperature Sensor Bolt	-	10
Wire Bracket to Mechatronic Cover Nut	-	10
Selector Mechanism, through 02.09
Bolt (with Spring) to Selector Mechanism	-	3
Selector Housing to Body/Selector Mechanism Nut	-	9
Selector Lever Cable Adjustment Bolt	-	13
Selector Mechanism to Body Nut	-	8
Selector Mechanism, from 03.09
Selector Housing to Body Nut	-	8
Selector Lever Cable Adjustment Bolt	-	13
Selector Mechanism with Selector Lever and Selector Lever Cable to Body Bolt	-	8
(1) Tighten the bolts diagonally and in multiple stages. (2) R32 models only

Mechatronic Unit Bolt Tightening Sequence and Specification 

-- Install new bolts -1 through 10- hand tight.

-- Tighten the bolts in the specified sequence to 5 Nm + 90° (1/4) additional turn.

Oil Pump Bolt, Variety and Tightening Specification 

All 4 bolts with a flat heads

-- Tightening specification: 5 Nm + 90° (1/4) additional turn

3 bolts have a flat head, the upper bolt is countersunk

Tightening specification:

• Countersunk bolt: 8 Nm without tightening angle (tighten using special wrench, long reach -T10054-)
• Flat head bolts: 8 Nm + 90° (1/4) additional turn

Bevel Box to Transmission Bracket Bolt Tightening Sequence and Specification (R32 models only) 

-- Install the bolts -1 and 2- by hand.

-- Follow the installation sequence:

1. Tighten the bolts -1- first to 3 Nm. 
2. Tighten the bolts -2- to 35 Nm. 
3. Then, tighten the bolts -1- to 45 Nm.