Owners Manual

Problem Possible causes/consequences and M Solutions
The auxiliary heating
switches off
automatically and/or
cannot be switched on.
The fuse is blown.
X
Replace the fuse; see the "Fuse allocation" supplement.
X
Have the cause of the blown fuse determined at a qualified
specialist workshop.
The auxiliary heating
switches off
automatically and/or
cannot be switched on.
A malfunction has occurred.
X
Switch the ignition on and off twice.
If the auxiliary heating still cannot be switched on, the heating
device is faulty.
X
Have the auxiliary heating checked at a qualified specialist
workshop.
The auxiliary heating is
overheated.
The coolant level is too low.
X
Check the coolant level and add more coolant if necessary
(Y page 172).
Central locking system
G
WARNING
If service work is not carried out correctly, the operating safety of your vehicle may be affected.
This could cause you to lose control of your vehicle and cause an accident. Moreover, the safety
systems may no longer be able to protect you or others as they are designed to do.
Always have service work carried out at a qualified specialist workshop.
Problem Possible causes/consequences and M Solutions
It is no longer possible
to lock the vehicle
using the remote
control.
The turn signals do not
flash when the vehicle
is locked.
The doors are not closed properly.
X
Close the doors properly and lock the vehicle again.
It is no longer possible
to lock the vehicle
using the remote
control.
The turn signals do not
flash when the vehicle
is locked.
The central locking system has malfunctioned.
X
Lock the vehicle using the folding key (Y page 56).
X
Have the central locking system checked as soon as possible
at a qualified specialist workshop.
220
Troubleshooting
Practical advice