Mercedes Benz 2009 M-Class User Manual

For more information, see “Practical hints” 
(

컄

page 413).

®

With the off-road driving program switched 
on (

컄

page 268), the ESP

®

 designed for 

off-road use is automatically activated. At 
speeds below 27 mph (45 km/h), the 
ESP

®

 assists in over-/understeering, thus 

improving vehicle traction.

®

If the trailer you are towing should begin to 
sway, the rig can only be stabilized by 
immediately applying the brakes hard. 
Steering during this maneuver will not help 
to stabilize the rig.

ESP

®

 will assist you in such situations. 

ESP

®

 recognizes when the trailer starts 

swaying and will apply the brakes to re-
duce the vehicle speed to a non-critical 
speed that allows the vehicle-trailer combi-
nation to stabilize.

The ESP

®

 Trailer Stabilization is functional 

at vehicle speeds above approximately 
40 mph (65 km/h) when the ESP

®

 is 

switched on.

The EBP enhances braking effectiveness 
by allowing the rear brakes to supply a 
greater proportion of the braking effort 
without a loss of vehicle stability.

For more information, see the “Practical 
hints” section (

컄

page 416) and 

(

컄

page 448).

G

The system will not be able to assist when 

the trailer jackknifes

앫

on wet or icy roads

앫

on roads with slippery surface

앫

in sand or gravel

Trailers with a high center of gravity may tip 

over before the system recognizes swaying 

of the trailer.

i

®

®

G

If the EBP is malfunctioning, the brake sys-

tem is still functioning. However, the rear 

wheels may lock during hard braking, caus-

ing you to lose control over the vehicle and 

possibly causing an accident. Adjust your 

driving style to the non-operating status of 

the EBP.