SEE MORE:
REPLACING VOLTAGE REGULATOR
Necessary preliminary tasks:
Switch off ignition
Disconnect battery negative lead.
Notes on removing and installing electronic control units.
Remove alternator
Bosch:
Release protective caps (1).
Fig. 40: Inserting Screwdriver Between Cover And Threaded Pin
Bosch:
The N54 and N52KP meet ULEV II requirements for 2007. There are not many
changes to the emission
systems on these engines. The N54 engine has 2 underbody catalysts in addition
to the "near engine" catalysts
already in use from the N52.
The N51 engine, however, is a SULEV II compliant engine which