Troubleshooting
Points to remember
G
Risk of accident and injury
The operating safety of your vehicle could be compromised if service work is carried out improp-
erly. You could lose control of the vehicle and cause an accident. Safety systems may also not
be able to protect you or others as intended.
Always have maintenance work carried out at a qualified specialist workshop. The workshop must
have the necessary specialist knowledge and tools to carry out the work required. Mercedes-
Benz recommends that you use a Mercedes-Benz Service Centre for this purpose. In particular,
work relevant to safety or on safety-related systems must be carried out at a qualified specialist
workshop.
Warning and indicator lamps in switches and buttons
Problem
Possible causes/consequences and
X
X
Solutions
The seat heating* has
switched itself off pre-
maturely or cannot be
switched on.
The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e. g. reading lamp
or interior lighting.
When you press the
¿
button on the 1-
zone automatic air con-
ditioning/2-zone auto-
matic air conditioning
Thermatic*/3-zone
intelligent automatic
air conditioning
Thermotronic*/3-zone
Thermotronic* control
panel, the indicator
lamp flashes three
times or remains off.
The cooling system
cannot be switched on.
Cooling has been deactivated due to a malfunction.
X
Visit a qualified specialist workshop.
The rear-window heat-
ing has switched itself
off prematurely or can-
not be switched on.
The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e. g. reading lamp
or interior lighting.
Once the battery is sufficiently charged, the rear window heating
will switch back on automatically.
Troubleshooting
199
Prac
tic
al
advi
ce
* optional
X204_AKB; 1; 5, en-GB
wobuchh,
Version: 2.11.4
2008-10-15T13:20:56+02:00 - Seite 199
Z
Dateiname: 6515_0671_02_buchblock.pdf;
preflight
