Page 8 of 62

Maintenance Booklet6IntroductionInterior filters (e.g. dust filter, recircu-
lating air filter, activated charcoal filter or
combination filter) are replaced accord-
ing to the maintenance intervals listed.
Under severe dust conditions, or with the
Climate Control frequently operating in
the air recirculation mode, the respective
filter should be replaced correspondingly
sooner.
Tire inspection - Your vehicle’s tires are
a critical component to overall vehicle
performance and vehicle stability. The
useful life of tires will vary and is
proportional to tire type, speed rating,
ambient conditions, tire loading, tire
inflation pressure, road surfaces, and
individual driving style, among other
factors. Therefore, Mercedes-Benz
recommends regular checks for wear and
proper inflation.
The first tire inspection, which includes
checking for proper inflation pressure
and tread condition, is at no charge pro-
vided it is performed at an authorized Mercedes-Benz Center prior to
5,000 miles on the vehicle odometer.
For your convenience, this Maintenance
Booklet contains a tire inspection confir-
mation page on which you can record the
date and mileage when tire inspections
were performed.
Tire rotation - Tire rotations can only be
performed on vehicles with the same tire
dimensions on all four wheels (e.g. winter
tires). In cases where your vehicle is
configured with staggered tire sizes
(different tire sizes, front vs. rear), tire
rotations are not possible.
If your vehicle’s tire configuration allows
for rotation, tire rotation should be
performed by observing a front-to-rear
pattern that will maintain the intended
rotational (spinning) direction of the tire
(on unidirectional tires, an arrow on the
sidewall indicates the intended rotation
or spinning direction of the tire) and in
accordance with the tire manufacturer’s
recommended intervals, or sooner at first
signs of irregular (uneven) tread wear.
Page 15 of 62
13 Maintenance Booklet
Emission System Maintenance
d) The operation of the emission con-
trol system must not be altered in
any way. Alterations are not permissi-
ble by law. In addition, alterations may
result in damage to the catalysts, in-
creased fuel consumption, and im-
paired engine running conditions.
e) Irregular engine running conditions
should be corrected immediately by
an authorized Mercedes-Benz Cent-
er. Such irregular running conditions
can influence the proper function of the
emission control system.
If the “CHECK ENGINE” indicator lamp in
the instrument cluster illuminates when
the engine is running, it indicates a possi-
ble malfunction of the engine manage-
ment system or emission control system.
We recommend that you have the mal-
function checked as soon as possible.
Page 54 of 62

Maintenance Booklet
52
Service
Check condition/thickness of brake discs front/rear 4251
Check brake pads for lining thickness front/rear4251
Check and clean front and rear ventilation grille and air ducts for the brake system 6150
Parking brake - Adjust cable slack4261
Check tires for damage and condition4051
Measure tread depth, record in mm4051
Correct tire inflation pressure- - - -
Activate Electro-hydraulic brake system using STAR DIAGNOSIS- - - -
Underside of vehicle
Check and clean underbody panelling 61 51
Check and clean ventilation grille and air ducts of the rear axle61 5 0
Leakage - Major components
Check for chafe marks, line routing, damaged components
In the event of leakage, determine cause and perform repair via separate work order 0053
Check condition of front axle ball joints and rubber boots3353
Check conditions of steering mechanical components and rubber boots4653
Check rear axle mount for condition3557
Check drive shaft for condition3558
Check propeller shaft for condition41 5 4
Page 55 of 62
53 Maintenance Booklet
Service
Engine compartment
Leakage - Major components
Check for chafe marks, line routing, damaged components
In the event of leakage, determine cause and perform repair via separate work order 0053
Change engine oil and filter 01 01
Check condition of poly-V-belts 1351
Check engine mounts - - - -
Check the following fluid levels, correct if necessary
Brake system4210
Power steering4611
Engine cooling system (main and low temperature circuits), anti-corrosion/antifreeze protection2010
Bleed low temperature circuit2010
Ve h i c l e f ro n t / r e a r
Check window glass and exterior lighting lenses- - - -
Check headlamp setting 8260
Check wiper blade condition- - - -
Page 62 of 62

Maintenance Booklet
60
Description of Emission System Maintenance Jobs
The composition of exhaust emissions is
influenced not only by the special emission
control equipment, but also by various en-
gine components and their adjustments.
Therefore, emission system maintenance
must include these engine components.
Some maintenance jobs are actually only
tests. They are important however, be-
cause they allow early detection of dis-
crepancies which can later lead to
increased exhaust emissions. It is general-
ly less expensive to have such items ad-
justed immediately rather than allowing
them to contribute to costly repairs. The
maintenance intervals have been deter-
mined so that the vehicle, under normal
conditions, should operate properly be-
tween services. 0101 Engine oil and filter change
Change the engine oil and oil filter every
10,000 miles. If oil consumption should in-
crease, determine the cause and take nec-
essary corrective steps. Reset the
Maintenance System counter.
0980 Replace air filter element
Under normal dust conditions, replace air
filter element approximately every 20,000
miles or 2 years. Clean air filter cover and
housing prior to removal of air filter ele-
ment.0780 Replace fuel filter
Replace the fuel filter approximately every
60,000 miles or 4 years.
1351 Check engine poly-V-belt condi-
tion
The poly-V-belt is subject to wear and ag-
ing. It must be checked for cracks and
wear at every service. Replace poly-V-belt
if necessary.
1580 Replace spark plugs
Spark plugs are subject to electrode ero-
sion and must be replaced according to
schedule on page 57, or more frequently
as may be required when subject to severe
operating conditions.