Operation
Diesel engine
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6.6.4.1 Power reduction AdBlue filling level
AdBlue filling level System impact Capacity
approx. 10 % – 7.5 % DEF warning light is on Normal
approx. 7.5 % – 5 % DEF warning light flashes
LIM warning light is on
Torque reduction to 75% of the nomi-
nal torque
Slight reduction
approx. 5 % – 2.5 % DEF warning light flashes
LIM warning light flashes
Torque reduction to 50% of the nomi-
nal torque
Rotational speed limited to 60% of
nominal rotational speed
Strong reduc-
tion
approx. 2.5 % – 0 % DEF warning light flashes
LIM warning light flashes
Stop Engine warning light is on
Reduction to 20% of the nominal
torque
Reduction to the idling speed
Full reduction
begins
AdBlue 0% DEF warning light flashes
LIM warning light flashes
Stop Engine warning light flashes
Engine in idling speed
Full reduction
ADVICE
This type of power reduction is "self-healing", i.e. after refuelling, the power raises
itself again.
DEF control light (Diesel Exhaust Fluid). AdBlue® Warning
LIM control light, diesel engine torque limiter is active
Stop Engine warning light, shut off diesel engine (performance
reduced)