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Old 12-07-2012, 12:01 AM
CJ745NZ CJ745NZ is offline
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Location: Auckland, New Zealand
Join Date: Apr 2011
Posts: 59
Mein Auto: 2009 730d
Correct. When the engine is running the hydraulic system activates all 4 brakes as if you are sitting with your foot on the brake. When you shut the engine off the hydraulics stop working and the mechanical park brake grips only the rear brakes. You will get a slight 'kick' as the park brake takes over.

Last edited by CJ745NZ; 12-07-2012 at 12:04 AM.
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