Mercedes-Benz 2003 E -Class Wagon - Manual (Page 248)

245 Malfunction and indicator lamps
Technical
data
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
An on-board diagnostic connector is located in the
passenger compartment near to the parking brake
pedal, allowing the accurate identification of system
malfunctions through the readout of diagnostic trouble
codes.
Brake warning lamp
Except Canada
Canada only
When the brake warning lamp and message appear
while the engine is running, this means:
• there is insufficient brake fluid in the reservoir
(engine running and parking brake released), or
• the parking brake is set (engine running).
Note:
If you find that the brake fluid in the brake fluid
reservoir has fallen to the minimum mark or below,
have the brake system checked for brake pad thickness
and leaks.
BRAKE
Warning!
Driving with the brake warning lamp illuminated
can result in an accident. Have your brake system
checked immediately if the brake warning lamp
stays on. Don’t add brake fluid before checking the
brake system. Overfilling the brake fluid reservoir
can result in spilling brake fluid on hot engine
parts and the brake fluid catching fire. You can be
seriously burned.