2008 MERCEDES-BENZ S-Class TPMS

657 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Shift to P or N
to Start Engine
You have attempted to start the engine
while the automatic transmission was set to
reverse gearR or drive positionD.

Shift the automatic transmission to park positionP or neutral
positionN (
page 426).
Tire Pressure Monitor
Inoperative
The Advanced TPMS or a wheel sensor is
malfunctioning.

Have the Advanced TPMS checked by an authorized
Mercedes-Benz Center.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Follow recommended tire inflation pres-
sures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated. Do
not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes
etc.

658 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Tire Pressure Monitor
Inoperative
No Wheel Sensors
The Advanced TPMS is deactivated be-
cause wheels without proper sensors were
installed.

Have the wheel sensors installed by an authorized
Mercedes-Benz Center.
As soon as all wheels with sensors have been mounted, the
Advanced TPMS is switched back on after driving for several
minutes.
Tire Pressure Monitor
Currently Unavailable
The Advanced TPMS is unable to monitor
the tire inflation pressure due to:

a nearby radio interference source


the on-board voltage is too low


excessive wheel sensor temperatures
As soon as the causes for the malfunction are no longer present,
the Advanced TPMS automatically becomes active again after a
few minutes of driving.

703 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Wheel Sensor(s)
Missing
One or more sensors malfunction (e.g. bat-
tery in one or more wheel sensor is empty).
One or more wheels without wheel sensors
mounted (e.g. spare tire).
No pressure value is shown on the multi-
function display for the tire in question.

Have the Advanced TPMS checked by an au-
thorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.
The tire pressure for the respective tire is
shown in the multifunction display after a few
minutes of driving.
Tire Pressure
Please Rectify
The pressure is too low in one or more tires.
Or the tire pressures of the individual
wheels differ too radically from one anoth-
er.

Check and adjust tire inflation pressure as
required (
page 593).

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.

786 Index
ESP
®
29, 629, 634
Front passenger front air bag off 51,
640
High beam headlamp 29
Maintenance service indicator 612
Park Assist* 29
Parktronic* 29
Seat belt telltale 29, 635
SRS 29, 637
TPMS malfunction telltale 638
TPMS* malfunction telltale 29
Turn signals 29
Language (COMAND) 262
LATCH-type child seat anchors see
Children in the vehicle
Lever
For automatic transmission
(gear selector lever) 426
For cruise control 447
For DISTRONIC Plus* 457
License plate lamps
Messages in display 689
Replacing bulbs 715
Light alloy wheels, Cleaning 623
Light sensor
Message in display 688Lighter see Cigarette lighter
Lighting 399
Automatic headlamp mode 400
COMAND display illumination 89
Corner-illuminating lamps 404
Daytime running lamp mode 401
Door entry lamps 407
High beam flasher 403
Instrument cluster illumination 444,
492
Interior 406
Low beam headlamps 400
Manual headlamp mode 400
Trunk 407
Limp-Home Mode 443
Loading see Vehicle loading
Locator lighting (COMAND) 265
Lock button
Door handle (KEYLESS-GO*) 364,
415
Key, SmartKey 358
Key, SmartKey with
KEYLESS-GO* 361
Locking 421
Automatic central locking
(COMAND) 267Vehicle in an emergency 709
Locking knob 367
Loss of
Key, Mechanical 366
Key, SmartKey 366
Key, SmartKey with
KEYLESS-GO* 366
Service and Warranty Information
Booklet 747
Low beam headlamps 400
Replacing bulbs 715
Lowering
Vehicle 727
Lubricants 764
Lumbar support (COMAND) 283

795 Index
Tilt/sliding sunroof see Power tilt/sliding
sunroof
Time
Setting (COMAND) 259
TIN 608
Tire and Loading Information
Placard 586
Tire Identification Number see TIN
Tires 582
Advanced Tire Pressure Monitoring
System (Advanced TPMS)* 593
And Rims 754
And Wheels 582
Care and maintenance 583
Chains 611
Checking inflation pressure electroni-
cally with Advanced Tire Pressure
Monitoring System (Advanced
TPMS) 593
Cleaning 584
Cold tire inflation pressure 606
Combination low tire pressure
malfunction telltale 29, 638
Direction of rotation 585
Driving instructions 563Important notes on tire inflation
pressure 591
Inflation pressure 590
Information placard 586
Inspection 583
Load rating 599, 608
Load rating, Maximum 603, 607
Minispare wheel 707
Ply composition and
material used 608
Problems under-/overinflation 590
Retreads 582
Rotating 609
Service life 583
Sizes 754
Snow 610
Spare wheel 759
Speed rating 564, 600, 608
Storing 584
Temperature 591, 605
Terminology 606
Total load limit 608
TPMS malfunction telltale 638
TPMS* malfunction telltale 29
Traction 564, 608Tread depth 584
Tread depth, Winter 610
Treadwear indicators 608
Vehicle maximum load on 609
Wear pattern 609
Winter 610
Tools 705
Top tether
Children in the vehicle 62
Towing eye bolt (vehicle tool kit) 705,
740
Towing the vehicle 737
Tow-start 734, 737
Traction 564, 605, 608
Transmission see Automatic transmission
Traveling abroad 567
Tread 608
Tread depth, Tires 584
Tread depth, Winter tires 610
Treadwear indicators 608
Trip odometer 291
Resetting 292
Troubleshooting
Voice Control 352