Although, the N54 engine has an all aluminum crankcase, many of the bolts are
still aluminum as on the N52.
This is to reduce any potential confusion between steel and aluminum bolts.
Some bolts, for example, are steel
such as the cylinder head cover bolts. This is possible, due to the plastic
cy
REMOVING AND INSTALLING/SEALING OR REPLACING TRANSMISSION SUMP
(GA6HP26Z)
IMPORTANT: Remove transmission sump only after it has cooled down.
After completion of work, check transmission oil level.
Use only the approved gear oil.
Failure to comply with this requirement will result in serious damage