IMPORTANT: Read and comply with notes on protection against electrostatic discharge (ESD protection).
Necessary preliminary tasks:
IMPORTANT: FOLLOW INSTRUCTIONS FOR REMOVING AND INSTALLING CONTROL UNITS.
Replacement:
IMPORTANT: It is absolutely essential to read out the fault memory with the BMW diagnosis system and to create a fault memory printout.
Switch off ignition.
Release screws (1).
Release screws (1).
Remove control unit from intake plenum.
Installation note:
Renew gasket between intake plenum and control unit.
Injection quantity compensation:
If the DME control unit has been replaced, it will also be necessary to carry out adjustment of the injectors! Injection quantity compensation is carried out with the aid of so-called adjustment values.
The adjustment value is printed on each injector in three digits.
If necessary, remove EMC panel.
The adjustment values must be stored in the new control unit! If injector quantity compensation is not carried out, the engine may run roughly or fail to start.
Read off the adjustment values and enter according to the installation location (cylinder) of the injectors:
NOTE: Check stored fault message.
Clear diagnostic fault entries from fault memory.
BMW X3 Owners Manual > Changing wheels and tires: Winter tires
Winter tires are recommended for operating on
winter roads.
Although so-called all-season M+S tires provide
better winter traction than summer tires,
they do not provide the same level of performance
as winter tires.
Maximum speed of winter tires
If the maximum speed of the vehicle is highe ...