Troubleshooting
293Problem Possible cause/consequence Suggested solutions
The yellow reserve fuel warning
lamp comes on while the engine
is running. The fuel level has fallen below the
reserve range. The operation of
the auxiliary heating* can no lon-
ger be guaranteed. X
Refuel at the nearest filling station. Warning tones
Problem Possible cause/consequence Suggested solutions
The anti-theft warning alarm* is
triggered. You have opened the vehicle
using the emergency key element
without deactivating the anti-
theft alarm system* first. X
Switch off the alarm (Y page 63).You hear a warning tone. A message appears in the multi-
function display. X
See the explanations for the display message (Y page 259).You hear a warning tone. You are driving with the parking
brake applied. X
Release the parking brake. You hear a warning tone. You did not switch off the lights
when leaving the vehicle. X
Turn the light switch to MorU.
or
X If the rear foglamp is switched on: press the light switch in as far
as it will go. Practical advice
* optional
164_AKB; 5; 5, en-GB
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Locking/unlocking in an emergency
308 Locking/unlocking in an emergency
Emergency key
If the vehicle can no longer be unlocked or
locked with the key or the KEYLESS GO
key*, use the emergency key element.
If you use the emergency key element to
unlock and open the driver's door, the anti-
theft alarm system* will be triggered
(Y page 62).
There are several ways to turn off the alarm:
X Press the korj button on the key.
or
X Insert the key into the ignition lock.
or
X Press the KEYLESS GO button* in the igni-
tion lock. The KEYLESS GO key* must be in
the vehicle.
or
X Lock or unlock the vehicle using KEYLESS
GO*. The KEYLESS GO key* must be out-
side the vehicle. Releasing and removing the emergency
key element
1
Release catch
2 Emergency key element
X Push release catch 1in the direction of
the arrow and at the same time remove
emergency key element 2from the key. Unlocking the vehicle
If the vehicle can no longer be unlocked cen-
trally with the key or the KEYLESS GO key*:
X Remove the emergency key element from
the key (Y page 308). $
To unlock
X Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Firmly turn the emergency key element
anti-clockwise as far as it will go to position
$ and hold it in this position.
i On right-hand-drive vehicles, turn the
emergency key element clockwise.
X Pull the door handle firmly.
The locking knob pops up.
The door is unlocked. Practical advice
* optional
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