Mercedes-Benz C-Class, Owner'S Manual

Page: 339 / 489

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Possible causes/consequences and M M Solutions
¸
Replace Replace air air cleaner cleaner
Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X
Visit a qualified specialist workshop.
!
Clean Clean the the fuel fuel fil‐ fil‐
ter ter
Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X
Visit a qualified specialist workshop.
Refill AdBlue See Refill AdBlue See
Owner’s Manual Owner’s Manual
The AdBlue ® level has fallen below the reserve range. A warning
tone also sounds.
X
Refill AdBlue ® as soon as possible (
Y
page 204).
Refill AdBlue No Refill AdBlue No
start in ... mi start in ... mi
The AdBlue
®
level is only sufficient for the indicated distance. A
warning tone also sounds.
X
Refill AdBlue
®
immediately (
Y
page 204).
i If you drive the vehicle faster than 15 km/h the Refill Refill
AdBlue AdBlue No No start start in in ... ... mi mi message goes out after approx-
imately one minute.
Refill Refill AdBlue AdBlue Eng. Eng.
start not possible start not possible
The AdBlue
®
tank is empty. A warning tone also sounds. You can
no longer start the engine.
X
Add at least 3.5 l of AdBlue
®
(
Y
page 204).
X
Turn the ignition on for approximately one minute.
The system requires approximately one minute after refilling to
detect the change in the AdBlue
®
level.
X
Start the engine.
Check AdBlue See Check AdBlue See
Owner’s Manual Owner’s Manual
The AdBlue
®
system is malfunctioning. A warning tone also
sounds.
X
Visit a qualified specialist workshop.
Eng. Eng. start start not not pos‐ pos‐
sible sible
The AdBlue
®
system is malfunctioning. A warning tone also
sounds. You can no longer start the engine.
X
Consult a qualified specialist workshop immediately.
336
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