BMW X5: Wheels
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Checking Front And Rear Wheel For Face And Radial Runout
Special tools required:
36 1 030
Necessary preliminary tasks:
Check wheel bearings
Lift vehicle.
Check wheel with special tool 36 1 030 (measuring fixture) for lateral runout.
If applicable, r
Stationary Wheel Balancing
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 patter
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Valvetrain
The valvetrain on the N52 introduced in 2006, used 5 mm valve stems on both
the intake and exhaust. To
increase durability, the exhaust valve stems were increased to 6 mm from 6/06
production.
All of the new NG6 engine have adopted the 6 mm valve stem for the exhaust, the
intake stem remains at
Emissions Management
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
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