Mercedes-Benz CLK-Class Owner's Manual page 297

Practical advice
Display messages
Display messages
±
Display faulty
Visit workshop!
2
Brake wear
Visit workshop!
294
Possible cause/consequence
One or more electronic systems are
unable to deliver information to the
operating system. The following
systems may have failed:
Coolant temperature gauge
Rev counter
Cruise control or Speedtronic
display
The brake pads have reached their
wear limit.
Possible solution
Have the electronic systems checked at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
Have the brake pads replaced as soon as
possible.