298 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
# 
Visit
workshop!
There is a malfunction in the elec-
tronic system.
Have the system checked at an authorized 
Mercedes-Benz Center as soon as possible.
# 
Electric
consumers
offline!
The consumer battery has insuffi-
cient voltage and can no longer sup-
ply the convenience functions such 
as seat ventilation*.
The electrical consumers will come back online 
as soon as on-board voltage is sufficient.
2 
Brake lining wear!
Visit
workshop!
The brake pads have reached their 
wear limit.
Have the brake pads replaced as soon as pos-
sible.
!Brake pad thickness must be visually 
checked by a qualified technician at the 
intervals specified in the Service 
Booklet.