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Mercedes Benz 2009 M-Class User Manual

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Practical hints
Towing the vehicle
Warning!
G
If circumstances require towing the vehicle 
with all wheels on the ground, always tow 
with a tow bar if:
앫
the engine will not run
앫
there is a malfunction in the power 
supply or in the vehicle’s electrical sys-
tem
Prior to towing the vehicle with all wheels on 
the ground, make sure the starter switch is 
in position 2 (
컄
page 40).
Warning!
G
With the engine not running, there is no 
power assistance for the brake and steering 
systems. In this case, it is important to keep 
in mind that a considerably higher degree of 
effort is necessary to brake and steer the 
vehicle. Adapt your driving accordingly.
i
To signal turns while being towed with 
hazard warning flasher in use, set the starter 
switch to position 2 and activate combination 
switch for left or right turn signal in usual manner 
– only the selected turn signal will operate.
Upon canceling the turn signal, the hazard 
warning flasher will operate again.
i
If the battery is disconnected or discharged, 
the automatic transmission will remain locked in 
position P and the SmartKey will not turn in the 
starter switch. For more information, see “Bat-
tery” (
컄
page 507) and “Jump starting” 
(
컄
page 515).
!
When towing the vehicle with all wheels on 
the ground, note the following:
With the automatic central locking activated and 
the ignition in position 2 (
컄
page 40), the vehicle 
doors lock if the left front wheel is turning at a 
speed of approximately 9 mph (15 km/h) or 
above.
To prevent the vehicle doors from locking, 
deactivate the automatic central locking 
(
컄
page 126).
Towing of the vehicle should only be done using 
the towing eye bolt. Never attach tow cable, tow 
rope or tow rod to vehicle chassis, frame or sus-
pension parts.