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Practical hints
What to do if …
Problem Possible cause Suggested solution
{ The yellow ETS malfunction indi-
cator lamp comes on while the
4-ETS/ESP warning lamp v
flashes.
4-ETS has switched off to prevent overheat-
ing of the brakes. Also see 4-ETS/ESP warn-
ing lamp (
୴ page 258).
As soon as the brakes have cooled off,
4-ETS switches on again.
The indicator lamp goes out.
4-ETS is malfunctioning and has switched off. ̈ Have the 4-ETS checked at an autho-
rized Mercedes-Benz Light Truck Cen-
ter as soon as possible.
ê The yellow LOW RANGE indicator
lamp flashes after one or more
switching conditions.
The gear selection conditions have not been
adhered to.
̈ Repeat the gear selection process
(
୴ page 127).
ê The yellow LOW RANGE indicator
lamp flashes after switching the
ignition on.
LOW RANGE mode is malfunctioning. Have the LOW RANGE mode checked at
an authorized Mercedes-Benz Light Truck
Center.
The yellow fuel tank reserve
warning lamp comes on while
driving.
The fuel level has gone below the reserve
mark.
̈ Refuel at the next gas station
(
୴ page 219).
The yellow fuel tank reserve
warning lamp flashes when leav-
ing the engine running.
The fuel cap is not closed tightly. ̈ Check the fuel cap (୴ page 219).