BMW E61 Sports Wagon 530xiT User Manual

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E61 Sports Wagon
ATC 300 TransferCase
The transfer case ATC 300 (Active Torque Control) is used on the E60/E61.
In view of the restricted package space of the transmission tunnel in the BMW 5 Series, it
was not possible to adopt the transfer case from the BMWX3 (ACT400) with the same
torque rating.
On the BMW 5 Series it was not possible to drive the forward power flow diagonally as is
the case on the X3 with a chain, but rather it is necessary to divert it L-shaped with the
aid of spur gears (pinions), resulting in a modified design of the transfer case.
The actuator drive and the actuation of the control lever were also modified. The clutch
package remains unchanged. The forward connection is provided by a bolted on drive
shaft.
The flange of the ATC transfer case is the same for automatic and manual transmissions.
Index Explanation Index Explanation
1
Propeller shaftto front axle
8
Clutch housing
2
Drive flange to front axle
9
Output flange to rear axle
3
Control cam
10
Propeller shaft to rear axle
4
Transfer case
11
Disc package
5
Idler gear
12
Actuator drive
6
Drive gear
13
Drive pinion
7
Control lever
14
Output gear
ATC 300 Transfer Case

BMW E61 Sports Wagon 530xiT Specifications

General

Brand	BMW
Model	E61 Sports Wagon 530xiT
Category	Automobile
Language	English