BMW E61 Sports Wagon 530xiT User Manual

Initial Print Date: 03/05
Table of Contents
Subject Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Air Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
xDrive with DSC8+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
xDrive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DXC8+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
System Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
ATC 300 Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Adjusting Levers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Servomotor with Motor Position Sensor . . . . . . . . . . . . . . . . . . . . . . .16
Coding Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Transfer Case Electronic Control Unit . . . . . . . . . . . . . . . . . . . . . . . . .17
DXC8+ Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Wheel Speed Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
DSC Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Bus Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Power Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
DSC/DXC8+ Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Transfer Case (VGSG) Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Transfer Case Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Tire Tolerance Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Pilot Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Traction Control / Driving Dynamics Control . . . . . . . . . . . . . . . . .26
Limp Home Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Dynamic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
ASC-X / ADB-X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Hill Decent Control (HDC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Dry Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Brake Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Automatic Soft Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Fading Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Drive-off Assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
E61 Sports Wagon
Revision Date: 04/05

BMW E61 Sports Wagon 530xiT Specifications

General

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

Summary

Introduction and Chassis

Vehicle Introduction and Dimensions

Overview of the E61 Sports Wagon and its dimensional changes from the E60.

Suspension System Details

Focuses on the rear axle suspension, including air spring technology.

Drivetrain and Dynamic Control Systems

xDrive and DSC System Functionality

Explains the xDrive all-wheel drive and DSC8+ system, including expanded functions.

Transfer Case Operation and Principles

Details the power flow and torque distribution within the ATC 300 transfer case.

Dynamic Stability Control Features

Covers features like HDC, ASC-X, ADB-X, Dry Braking, and Drive-off Assistant.

Service Information and Maintenance

Service Information and Procedures

Covers towing, oil monitoring, diagnosis, and programming.

Warning Indicator Lamps and Failures

Describes warning lamps, check control messages, and system malfunction indicators.

Body, Interior, and Access Systems

Body Modifications and Exterior Features

Highlights E61 specific body changes, rear doors, and panoramic sunroof.

Interior Components and Comfort

Describes interior trim, seats, and the luggage compartment features.

Rear Hatch and Tailgate Operation

Details the rear hatch mechanism, emergency release, and automatic lift system.

Electrical Systems and Bus Architecture

Vehicle Electrical Systems and Bus Overview

Explains the general electrical architecture and bus systems.