Mercedes-Benz M-Class 2014 Owners Manual - Manual (Page 303)

Display messages Possible causes/consequences and M Solutions
8
Ultra Low-sulfur
Diesel Fuel Only
Vehicles with a diesel engine: the fuel level has fallen below the
reserve range.
X
Refuel at the nearest gas station.
X Only use commercially available vehicular ULTRA-LOW SULFUR
HIGHWAY DIESEL FUEL (ULSD, 15ppm SULFUR MAXIMUM).
¸
Replace Air Filter
Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X Visit a qualified specialist workshop.
!
Check Fuel Filter
Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X Visit a qualified specialist workshop.
Ø
Check Additive See
Operator's Manual
The DEF tank is almost empty.
X Have the DEF tank filled as soon as possible at a qualified
specialist workshop (
Y
page 177).
Ø
Remaining Starts:
16
The DEF level has fallen to a minimum. You can start the engine a
further 16 times.
X Have the DEF tank filled immediately at a qualified specialist
workshop (
Y
page 177).
i You can start the engine a further 16 times. If DEF is not added,
it will then not be possible to restart the engine. Refill the DEF
tank with approximately 1 gal (3.8 l) DEF (
Y
page 177).
Driving systems
Display messages Possible causes/consequences and M Solutions
À
Attention Assist:
Take a Break!
Based on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.
X If necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest.
À
Attention Assist
Inoperative
ATTENTION ASSIST is inoperative.
X
Visit a qualified specialist workshop.
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