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
Special tools required:
36 1 010
36 1 020
Necessary preliminary tasks:
Remove wheel
IMPORTANT: Use only BMW-approved balance weights.
Remove any fitted balancing weights, stones in tread pattern and larger
contaminants.
Check tire pressure, check tire for condition, damage, flat spots (out-