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System limits
Syst
em limits
Cruise control may be unable to maintain the
stored speed on uphill gradients. The stored
speed is resumed when the gradient evens out.
Change into a lower gear in good time on long and
steep downhill gradients. Take particular note of
this when driving a laden vehicle. By doing so, you
will make use of the engine's braking e ect. This
relieves the load on the brake system and pre-
vents the brakes from overheating and wearing
too quickly.
Do not use cruise control in the following situa-
tions:
In tra c situations which require frequent
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changes of speed, e.g. in heavy tra c, on
winding roads.
On slippery roads. Accelerating can cause the
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drive wheels to lose traction and the vehicle
could then skid.
If you are driving when visibility is poor.
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F F unction of t
unction of the limit
he limiter er
The limiter restricts the speed of the vehicle. To
reduce the speed to the set speed, the limiter
applies the brakes automatically.
You can limit the speed as follows:
V V ar ariable:
iable: for a short-term speed restriction,
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e.g. in built-up areas
P P er ermanent
manent: : for a longer-term speed restric-
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tion, e.g. in winter tyre mode
You can store any speed above 20 km/h up to the
maximum design speed or up to the set winter
tyre limit. You can also perform settings while the
vehicle is stationary if the vehicle has been star-
ted.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognise
dangers (
page 172).
/
Mercedes‑
Mer
cedes‑AMG v
AMG vehicles:
ehicles: the limiter is available
up to a maximum speed of 250 km/h.
Display
Displays in t
s in the Ins
he Instr trument Display
ument Display
È (grey): variable limiter is selected but not
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yet activated.
È ( ashes grey): variable limiter is tempo-
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rarily passive.
È (green): variable limiter is activated.
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Driving and parking 181
A stored speed appears along with the È dis-
play. The segments in the speedometer light up,
up to the currently stored speed.
If you depress the accelerator pedal beyond the
pressure point (kickdown), the variable limiter
switches to passive mode. The
Limiter passive
message appears in the Instrument Display and
the È display ashes.
The variable limiter is reactivated in the following
situations:
If the vehicle speed drops below the stored
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speed.
If the stored speed is called up.
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If you store a new speed.
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Oper
Operating cr
ating cruise contr
uise control or t
ol or the v
he var ariable limit
& W W ARNING
ARNING Risk of accident due to stored
speed
If you call up the stored speed and this is
lower than your current speed, the vehicle
decelerates.
181
iable limiter er
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