The owners manual says to drive in 4wd for 16km every month. I have a long gravel road for a driveway, and use 4wd on this road.

Here are the details of the 4wd system.

http://users.757.org/~ken/T/27-Suspension%20and%20Axle.pdf

It explains what VSV are, and how the front axle locks.

If you don't want to fix it, it's possible to lock the front axle permanently.

In the pdf ^^ the rear axle is also explained.


97 T100 4x4
97 328i
95 540i restoration project