NOTE: Initialization comprises:
Normalization
Learning characteristic curve
The mechanical end positions are recorded and stored during normalization.
The characteristic curve is learned immediat
Special tools required:
51 3 057.
Fig. 43: Identifying Special Tools (51 3 057)
Insert special tool 51 3 050 TOOL in spring (1).
Using a suitable tool (2), unlock catch (3) of fastener for wind d
Special tools required:
00 9 315 ASSEMBLY WEDGES (SET IN PLASTIC CASE)
00 9 340 DISASSEMBLY AID (2)
Necessary preliminary tasks:
Remove gaiter on left and right.
Close glass slide/tilt sunroof
REMOVING AND INSTALLING/REPLACING ELECTRONICS BOX
IMPORTANT: Read and comply with notes on PROTECTION AGAINST
ELECTROSTATIC DAMAGE (ESD PROTECTION).
NOTE: Follow instructions for removing and installing electronic
control units.
Necessary preliminary tasks:
Read fault memory
Disconnect negative
Load control of the N54 engine is effected by means of the throttle valve and
the waste gate valves.
The throttle valve is the primary component in this process. The wastegate
valves are actuated to bring about a
fine tuning of the boost pressure. At full load the throttle valve is completely
op