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Problem
The indicator lamp in the 9 or
2 button of the Thermatic*/
Thermotronic* control panel is lit.
The cooling system cannot be
switched on.
The indicator lamp in the ¯
rear-window heating button is
flashing. The rear-window heat-
ing has switched itself off prema-
turely or cannot be switched on.
The 75 PASSENGER
AIRBAG OFF warning lamp on the
centre console is lit.
* optional
Possible cause/consequence
Cooling has been deactivated
due to a malfunction.
There is insufficient voltage
because too many consumers are
switched on.
A special Mercedes-Benz child
seat with automatic child seat
recognition has been fitted to the
front-passenger seat. The front-
passenger airbag has therefore
been disabled.
Suggested solutions
Visit a qualified specialist workshop.
X
Switch off consumers that are not required, e.g. reading lamps,
X
interior lighting, etc.
The rear-window heating will automatically switch back on as soon
as there is sufficient voltage again.
Practical advice
Troubleshooting
Z
191
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