Mercedes Benz 2007 r 320 cdi User Manual

Page of 570
348
Operation
Driving instructions
Power assistance
Brakes
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 ve-
hicle.
Warning!
G
After driving in heavy rain for some time 
without applying the brakes or through wa-
ter deep enough to wet brake components, 
the first braking action may be somewhat 
reduced and increased pedal pressure may 
be necessary to obtain expected braking 
effect. Maintain a safe distance from 
vehicles in front.
Resting your foot on the brake pedal will 
cause excessive and premature wear of the 
brake pads.
It can also result in the brakes overheating, 
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the 
vehicle in sufficient time to avoid an 
accident.
!
Operational or performance test must only 
be conducted on a two-axle dynamometer. If 
such tests are necessary, contact an authorized 
Mercedes-Benz Light Truck Center. You could 
otherwise seriously damage the brake system or 
the transfer case which is not covered by the 
Mercedes-Benz Limited Warranty.
!
Because the ESP
®
 operates automatically, 
the engine and ignition must be shut off 
(SmartKey in starter switch position 0 or 1 or 
KEYLESS-GO* start/stop button in 
position or 1) when testing the brakes on a 
brake test dynamometer and such testing should 
be no longer than 10 seconds.
Active braking action through ESP
®
 may other-
wise seriously damage the brake system which is 
not covered by the Mercedes-Benz Limited 
Warranty.