Mercedes-Benz C-Class 2014 Owner's Manual page 207

Refuelling
204
Problem
The fuel filler flap can-
not be opened.
®
AdBlue (BlueTEC vehicles only)
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent AdBlue
is part of the maintenance work.
When the supply of AdBlue
approximately 3.0 litres, the
AdBlue See Owner's Manual AdBlue See Owner's Manual
shown in the multifunction display.
When the AdBlue
mum, the Refill AdBlue Refill
km km message is shown in the multifunction dis-
play.
If you drive the vehicle faster than 15 km/h,
the Refill AdBlue See Owner's Manual Refill AdBlue See Owner's Manual
message goes out after approximately one
minute.
If the Refill AdBlue No start in X km Refill AdBlue No start in X km
message is shown in the multifunction dis-
play, you can still drive the vehicle over the
distance shown. If the AdBlue
up, you will subsequently be unable to
start the engine. If the
Start not possible Start not possible
the multifunction display and the engine does
not start, you must top up AdBlue
Possible causes/consequences and M M Solutions
The fuel filler flap is not unlocked.
or
The key battery is discharged.
Unlock the vehicle (
X
or
Unlock the vehicle using the emergency key element
X
( page 93).
Y
The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
Consult a qualified specialist workshop.
X
®
. Topping up AdBlue
®
is down to
Refill Refill
message is
®
supply drops to a mini-
AdBlue No No start start in in X X
®
is not topped
Refill AdBlue Refill AdBlue
message appears in
®
.
page 91).
Y
Add at least 3.5 l of AdBlue
X
Switch on the ignition for at least 60 sec-
X
onds.
Start the engine.
X
i You can also have the AdBlue
®
led at a qualified specialist workshop.
Before driving your vehicle outside Europe,
®
have the AdBlue
fied specialist workshop.
Further information about BlueTEC exhaust
gas aftertreatment and about AdBlue
be obtained from any Mercedes-Benz Service
Centre.
Important notes on the refilling proce-
dure
®
AdBlue is a water-soluble fluid for the
exhaust gas aftertreatment of diesel engines.
It is:
non-toxic
R
colourless and odourless
R
non-flammable
R
If you open the AdBlue
of ammonia vapour may be released.
Ammonia vapours have a pungent odour and
are particularly irritating to the skin, to
mucous membranes and to the eyes. You may
experience a burning sensation in your eyes,
®
.
®
tank refil-
supply checked at a quali-
®
®
tank, small amounts
can