329 Operation
Maintenance
Maintenance
In the “Operation” section you will find de-
tailed information on operating, maintain-
ing, and caring for your vehicle.
We strongly recommend that you have 
your vehicle serviced by an authorized 
Mercedes-Benz Center, in accordance with 
the Maintenance Booklet at the times 
called for by the maintenance service indi-
cator display.
Failure to have the vehicle maintained in 
accordance with the Maintenance Booklet 
and maintenance service indicator at the 
designated times/mileage will result in ve-
hicle damage not covered by the 
Mercedes-Benz Limited Warranty.
The maintenance service indicator will no-
tify you when your next maintenance ser-
vice is due.
Starting approximately one month before 
maintenance service is due, one of the fol-
lowing messages will appear in the multi-
function display while you are driving or 
when you switch on the ignition (example 
service A):
Service A in XXXXX miles (km)
Service A in XXX days
Service A in X day
Carry out service AThe maintenance services will be indicated 
by showing a service type A through 
type H in the multifunction display. 
Types A through H are classified based on 
estimated time needed to perform the 
maintenance service, ranging:
from
Service A(approx. one hour)
toService H(approx. eight hours)When the service type appears, you can 
use the vehicle’s control system to view a 
list of service items (1-13) that need to be 
performed at the called for maintenance 
service type (
page 333).
iVehicles equipped with FSS (F
lexible 
S
ervice S
ystem) only (Canada 
vehicles): The interval between mainte-
nance services depends on your driving 
habits. A gentle driving style, moderate 
engine speeds and the avoidance of 
short-distance trips will lengthen the 
interval between maintenance 
services.