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
The car's interior can be cooled or heated before
driving off with the pre-ventilation. Depending on
set temperature and ambient temperature, the
car's interior is ventilated or possibly heated using
the residual engine heat.
General information
The system can be switched on and off direct