Brake Pad Wear Indicator; Brake F Lu Id; Charge Indicator L Ig H T 43 Oil Pressure G A U G E; Coolant Temperature Gauge - Mercedes-Benz 280 E 1979 Owner's Manual

A leak or brake pad wear may cause
a shortage of brake fluid in the
reservoir.
Have brake system checked in a
MERCEDES-BENZ service station
as soon as possible.
Install only brake pads recom­
mended by us.
If other than recommended brake
pads are installed, the braking
properties of the vehicle can be
affected to an extent that the safety
is substantially impaired.

Brake Pad Wear Indicator

The brake pad wear indicator in the
instrument cluster comes on when
the key in the steering lock is
turned to driving position "2" and
it must go out when the engine is
running. If the indicator lights up
during braking or driving, this
shows that the front wheel brake
pads are worn down.
Have brake system checked in a
MERCEDES-BENZ service station
as soon as possible.
Brake Fluid
During the course of the operation
of the vehicle, the boiling point of
the brake fluid is continuously
being reduced through the absorp­
tion of moisture from the atmos­
phere. Under extremely hard ope­
rating conditions, this moisture
content can lead to the formation
of vapor in the system thus reducing
the system's efficiency. The brake
fluid must therefore be replaced
annually, preferably in the spring.
It is recommended to use only
brake fluid approved by
MERCEDES-BENZ.
Your MERCEDES-BENZ dealer will
provide you with additional infor­
mation.
Charge Indicator Light
Should the charge indicator light
fail to come on prior to starting
when the ignition key is in posi­
tion " 2" or should it fail to go out
after starting or during operation,
this indicates a fault which must be
repaired at a MERCEDES-BENZ
service station as soon as possible.
Safe Driving
Oil Pressure Gauge
The oil pressure may drop at idle
speed to 7.1 psi (0.5 kp/sq.cm) if
the engine is at operating temper­
ature. This will not jeopardize its
operational reliability. Pressure
must, however, rise immediately
upon acceleration.
The oil pressure gauge does not
provide any information concerning
the oil level in the engine.

Coolant Temperature Gauge

Due to the pressurized cooling
system, the coolant only starts
boiling at a temperature of approx.
257° F (125° C) with an antifreeze-
blended coolant fill protecting
down to —22° F (-3 0 ° C) (see also
" Fuels, Coolants, Lubricants, etc." ).
During severe operating conditions
and stop-and-go city traffic the
coolant temperature must rise to
red marking only.