Fig. 151: Identifying AGM Battery
Introduction
In September 2002 so-called VRLA batteries, better known as AGM batteries ,
were introduced.
(VRLA stands for Valve Regulated Lead Acid, i.e. lead acid battery with pressure
relief valve; AGM stands for
A bsorbent G lass M at, i.e. absorbent glass f
Principle
In the valet parking mode, the Control Display is
disabled. The operation via iDrive is no longer
possible.
E.g., this mode can be used when the vehicle is
handed over for valet parking.
General information
In the valet parking mode, it is not possible to
change vehicle settings via iDriv