317 Practical hints
What to do if ...
Left displayRight displayPossible cause/consequencePossible solution
ABSABS, ESP
inoperative
See
Oper. ManualRisk of accident!
The ABS and ESP
® ha ve s witc he d off
due to a malfunction.
The BAS is also deactivated.
The electro-hydraulic brake system
is still functioning normally but with-
out the ABS, the ESP
®, and the BAS
available.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases
the risk of an accident.
Convenience
functionstemporarily
unavailableThe battery for electrical consumers
has insufficient voltage and can no
longer supply the convenience func-
tions such rear window heating.As soon as the on-board voltage is sufficient,
you will see the following message in the multi-
function display:
Convenience functions
available again
. The electrical consumers are
switched on again.
Cruise control––– mph
(USA only)
––– km/h
(Canada only)
You have attempted to resume a
stored speed, but nothing is stored.Store a speed (page 204).
You have attempted to set a speed
below 20 mph (30 km/h).Accelerate to a speed exceeding
20 mph (30 km/h) and set the speed
(
page 204).
The ESP® is switched off.Switch on the ESP® (page 86).
Exceptions: (
page 85).
333 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
;(USA only)
3(Canada only)
Brakes overheated
Drive on, but with
even greater careThe brake system is overheated
due to an excessive load on the
brakes.Relieve the load on the brake system.
Drive more smoothly and think ahead to avoid
unnecessary braking.
Use the engine’s braking power more frequent-
ly. Shift into a lower gear (
page 174).
Cautiously continue driving so that the air
stream will cool down the brakes.
The message disappears after driving carefully
for a few minutes.
Warning!G
Overheating of the brake system will short-
en the service life of the brake disks. The
brake disks could fail. Have the brake disks
checked at an authorized Mercedes-Benz
Center.
