IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection).
IMPORTANT: Aluminum-magnesium materials.
No steel screws/bolts may be used due to the threat of ele
IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection).
Necessary preliminary tasks:
Read out fault memory of DME control unit; if necessary, work through
IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection).
Necessary preliminary tasks:
Switch off ignition
Disconnect battery negative lead.
Remove microf
Principle
Active Protection prepares occupants and the
vehicle for a possible accident in critical driving or
collision situations.
General information
Depending on the equipment and national-market
version, Active Protection consists of various
PreCrash functions.
The system is used to detect cert
Fig. 2: Identifying Air Brakes Vacuum Supply Models
INTRODUCTION
Vacuum is principally used for the brake booster.
The vacuum in the inlet pipe depends on the varying engine load.
Diesel engines do not normally have any vacuum in the inlet pipe. Vacuum on
diesel engines is provided by a
pump tha