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      06-27-2012, 06:19 PM   #16
luckyu's Avatar

Drives: 2007 328i, 1998 328i
Join Date: Jan 2007
Location: San Francisco Bay Area, California

iTrader: (1)

Originally Posted by Surly73 View Post
The sensor only adjust to changes in attitude WHILE DRIVING due to acceleration, braking, passenger or luggage load.
This is incorrect. The sensors work driving or no driving. The sensors do respond to changes in rake, as occurs in suspension upgrades, as well as luggage & passenger load.

If the headlight aim is way off after a suspension upgrade, then the sensor rod arms are the most likely cause of the problem.
2007 328i ZSP. M3 suspension: custom valved Bilstein shocks, Hyperco race springs, M3 lower control arms front and rear, M3 sway bars, and M3 subframe bushings. E46 front guide supports. Euro tail lights.