1.0 GENERAL INFORMATION
Brake fluid, (glycol-based) as used in BMW brake systems, must conform with
the following requirements:
High boiling point
Good low temperature resistance
Low compressibil
REPLACING CONTROL UNIT (VALVETRONIC)
Switch off ignition.
Follow instructions for disconnecting and connecting battery.
Disconnect battery.
CAUTION: Follow instructions for removing and installing electronic
control units.
Observe following instructions before replacing control unit:
PROGRAM CONT
IMPORTANT: Danger of scalding!
Only perform this work after engine has cooled down.
Necessary preliminary tasks:
Follow instructions for working on cooling system.
Draining coolant.
Remove fan cowl.
Unlock and detach coolant hose (1).
Release nuts and remove thermostat cartridge (2).
Install