'09-11 models
Remove the front grille cover.
Disconnect the 1P connector (A) from the horn (B).
Connect the terminal (A) to battery power, and the bracket (B) to body ground.
If the horn does not sound, replace it.
'12-13 models
Remove the front grille cover.
Disconnect the 1P connector (A) from the horn (B).
Connect the terminal (A) to battery power, and the bracket (B) to body ground.
If the horn does not sound, replace it.
Brake System Indicator
Brake System Indicator (Red)
The brake system indicator (red) normally comes on when you turn the ignition
switch to the ON (II) position, and as a reminder to check the parking brake. It
will ...
If the Low Oil Pressure Indicator Comes On
■ Reasons for the indicator to come on
Comes on when the engine oil pressure is low.
■ What to do as soon as the indicator comes on
1. Immediately park the vehicle in a safe place.
...
Mercedes-Benz C-Class Coupe review
The Mercedes C-Class Coupe encapsulates all the excellence of the sedan, packaged in an attractive exterior. Discover why it stands out as one of the most desirable mid-size coupes with our expert r ...