service MERCEDES-BENZ S-Class 2008 W221 Comand Manual

656 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking Guidance
Finished
Advanced Parking Guidance* The vehicle is
in the end position.
The display message disappears automatically.
PRE-SAFE
Inoperative
See Oper. Manual
PRE-SAFE
® itself has failed. All other occu-
pant safety systems, such as the air bags,
are still available.

Contact an authorized Mercedes-Benz Center as soon as pos-
sible.
Radar Sensors
Deactivated
See Oper. Manual
You attempt to activate DISTRONIC Plus*,
Park Assist* or PRE-SAFE
® Brake* even
though you have switched off the radar sen-
sors* on the vehicle.

Check if the radar sensors* may be switched on (
page 307).

Switch on the radar sensors* using the instrument cluster
control system.
Service X
Due
Service X must be carried out (
page 612).

Have the maintenance service carried out by an authorized
Mercedes-Benz Center.
Service X Exceeded
by X days
by XXX mls (km)
Service X must be carried within the next ...
or before you have driven ... miles (kilome-
ters) (
page 612).

Have the maintenance service carried out by an authorized
Mercedes-Benz Center as soon as possible.

659 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Tire Pressures
Displayed After Driving
a Few Minutes
The tire inflation pressure is being
checked.

Drive the vehicle for a few minutes.
Service Required
Do Not Shift Gears
The automatic transmission cannot be
shifted out of the set position because of a
malfunction.
If the automatic transmission is shift to drive positionD
(page 426):

Without changing the automatic transmission from drive
positionD, contact an authorized Mercedes-Benz Center.
If the automatic transmission is shift to neutral positionN, re-
verse gearR or park positionP:

Do not drive.

Consult an authorized Mercedes-Benz Center.

666 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Service
See Oper. Manual
S 600 and S 65 AMG only:
The brake system sensors are malfunction-
ing. The brake system continues to function
normally with full brake force boost.

Continue driving with added caution.

Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
(USA only)(Canada only)
Check
Brake Pad Wear
The brake pads have reached their wear
limit.

Have the brake pads replaced as soon as
possible.
!
Brake pad thickness must be visually
checked by a qualified technician at the intervals
specified in the Maintenance Booklet.

695 Practical hints
What to do if …?
When the message “Check Engine Oil Level
at Next Refueling” (all models except S 600
and S 65 AMG) or “Check Engine Oil Level
(Add 1 quart). (Canada:1Liter)” (S 600
and S 65 AMG) appears while the engine is
running and at operating temperature, the
engine oil level has dropped to approxi-
mately the minimum level.When this occurs, the warning is at first in-
termittent and then remains on if the oil
level drops further.
Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest ser-
vice station to refill engine oil to the re-
quired level with an approved oil.For information on approved engine oils,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.Display
Possible cause/consequence
Possible solution
Check
Engine Oil Level
(Add 1 quart)
(USA only)
Check
Engine Oil Level
(Add 1 Liter)
(Canada only)
S 600 and S 65 AMG only:
The engine oil level is too low.

Check the engine oil level (
page 575) and
add engine oil as required (page 578).

If you must add engine oil frequently, have
the engine checked for possible leaks.
Check
Engine Oil Level
at Next Refueling
All models except S 600 and S 65 AMG:
The engine oil level has dropped to approx-
imately the minimum level.

Check the engine oil level (
page 575) and
add engine oil as required (page 578).

If you must add engine oil frequently, have
the engine checked for possible leaks.
!
Engine oil level warnings should not be ig-
nored. Extended driving with the symbol dis-
played could result in serious engine damage
that is not covered by the Mercedes-Benz Limit-
ed Warranty.

697 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
SRS Malfunction
Service Required
There is a malfunction in the supplemental
restraint systems. The air bags or emergen-
cy tensioning devices (ETDs) could deploy
unexpectedly or fail to activate in an acci-
dent.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Front Left SRS
Malfunction
Service Required
Components of the driver’s supplemental
restraint system may not work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Front Right SRS
Malfunction
Service Required
Components of the front passenger’s sup-
plemental restraint system may not work
properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Rear Left SRS
Malfunction
Service Required
Components of the left rear passenger’s
supplemental restraint system may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Warning!
G
In the event that a malfunction of the SRS is
indicated as outlined above, the SRS may
not be operational. For your safety, we
strongly recommend that you contact an
authorized Mercedes-Benz Center
immediately to have the system checked;
otherwise the SRS may not be deployed
when needed in an accident, which could re-
sult in serious or fatal injury, or it might de-
ploy unexpectedly and unnecessarily which
could result in an accident and/or injury to
you or to others.

698 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Rear Center SRS
Malfunction
Service Required
Components of the center rear passenger’s
supplemental restraint system may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Rear Right SRS
Malfunction
Service Required
Components of the right rear passenger’s
supplemental restraint system may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Left Side Curtain
Airbag Malfunction
Service Required
The left side window curtain air bag may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Right Side Curtain
Airbag Malfunction
Service Required
The right side window curtain air bag may
not work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Warning!
G
In the event that a malfunction of the SRS is
indicated as outlined above, the SRS may
not be operational. For your safety, we
strongly recommend that you contact an
authorized Mercedes-Benz Center
immediately to have the system checked;
otherwise the SRS may not be deployed
when needed in an accident, which could re-
sult in serious or fatal injury, or it might de-
ploy unexpectedly and unnecessarily which
could result in an accident and/or injury to
you or to others.

728 Practical hintsFlat tire6Wheel wrench
Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of
110 lb-ft (150 Nm).

Fully collapse the jack, with handle
folded in (storage position),
(page 706).

Store the jack and the other vehicle
tools in the designated storage space
underneath the trunk floor
(page 705).
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft (150 Nm).i
Vehicles with Advanced TPMS:
Do not activate the tire inflation pressure moni-
tor until a full size wheel/tire with functioning
sensor has been placed back into service on the
vehicle.

745 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions and weights
Fuels, coolants, lubricants, etc.

746 Technical dataThe “Technical data” section provides the
necessary technical data for your vehicle.Parts service
All authorized Mercedes-Benz Centers
maintain a stock of Genuine
Mercedes-Benz Parts required for mainte-
nance and repair work. In addition, strate-
gically located parts distribution centers
provide quick and reliable parts service.
More than 300 000 different parts for
Mercedes-Benz models are available.
Genuine Mercedes-Benz Parts are subject-
ed to stringent quality inspections. Each
part has been specifically developed, man-
ufactured or selected for and adapted to
Mercedes-Benz vehicles.
Therefore, Genuine Mercedes-Benz parts
should be installed.
!
The use of non-genuine Mercedes-Benz
parts and accessories not authorized by
Mercedes-Benz could damage the vehicle, which
is not covered by the Mercedes-Benz Limited
Warranty, or could compromise the vehicle’s du-
rability or safety.

747 Technical data
Warranty coverage
Warranty coverage
Your vehicle is covered under the terms of
the warranties printed in the Service and
Warranty Information booklet. Your autho-
rized Mercedes-Benz Center will exchange
or repair any defective parts originally in-
stalled on the vehicle in accordance with
the terms of the following warranties:

New Vehicle Limited Warranty


Emission System Warranty


Emission Performance Warranty


California, Maine, Massachusetts, and
Vermont Emission Control Systems
WarrantyReplacement parts and accessories are
covered by the Mercedes-Benz Parts and
Accessories warranties, copies of which
are available at any authorized
Mercedes-Benz Center.Loss of Service and Warranty
Information Booklet
Should you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Center arrange for a re-
placement. It will be mailed to you.