Outside Temperature Indicator; Brake Pad Wear Indicator Lamp; Brake Warning Lamp - Mercedes-Benz 420 SEL 1986 Owner's Manual

Outside Temperature Indicator

The temperature sensor is attached
to the front bumper behind the
license plate base plate. Due to its
location, the sensor can be affected
by road or engine heat during idling or
slow driving. This means that the
accuracy of the displayed tempera­
ture can only be verified by compari­
son to a thermometer located next to
the sensor, not by comparison to ex­
ternal displays (i.e., bank signs, etc.).

Brake Pad Wear Indicator Lamp

The brake pad wear indicator lamp in
the instrument cluster comes on when
the key is turned to steering lock posi­
tion 2 and it should go out when the
engine is running. If the indicator lamp
lights up during braking, this shows
that the front wheel brake pads are
worn.
Have the brake system checked at an
authorized MERCEDES-BENZ dealer
as soon as possible.

Brake Warning Lamp

The brake warning lamp will come on
if insufficient brake fluid is in the re­
servoir (key in steering lock position 2
and parking brake released).
When the minimum mark on the re­
servoir is reached, have the brake
system checked (brake lining thick­
ness, leaks).
To test the brake warning lamp, de­
press the parking brake pedal. Turn
key in steering lock to position 2 and
the brake warning lamp should come
on; release parking brake and the
lamp should go out.