2003 MERCEDES-BENZ S430 4MATIC Owner's Manual

297 Practical hints
What to do if …?
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Possible cause
Suggested solution
ABC
ACTIVE BODY CONTROL
DRIVE CAREFULLY
!
The capability of the ABC system is restrict-
ed. This can impair the handling.

Do not exceed a speed of 50 mph
(80 km/h).

Visit a service center as soon as pos-
sible.
The vehicle is losing oil.

Stop your vehicle as soon as it is safe
to do so.
ACTIVE BODY CONTROL
STOP, CAR TOO LOW!
The vehicle is parked on an extremely
uneven surface.

Press the vehicle level control button
to select level 2 (
page 215).
ABC is malfunctioning.

Stop and press the vehicle level con-
trol button to select a higher vehicle
level (
page 215).

Do not turn steering wheel too far to
avoid damaging the front fenders.

Listen for scraping noises.

Do not exceed a speed of 50 mph
(80 km/h).

Visit a service center as soon as pos-
sible.
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The display for ABC or the ABC system it-
self is malfunctioning.

Visit an authorized
Mercedes-Benz Center as soon as
possible.

298 Practical hintsWhat to do if …?ABC
VISIT WORKSHOP!
The capability of the ABC system is restrict-
ed.

Do not exceed a speed of 50 mph
(80 km/h).

Visit a service center as soon as pos-
sible.
ABS
MALFUNCTION!
VISIT WORKSHOP!
The ABS has detected a malfunction and
has switched off. The ESP and the BAS are
also deactivated.
The brake system is still functioning nor-
mally but without the ABS available.

Continue driving with added caution.
Wheels may lock during hard brak-
ing, reducing steering capability.

Have the system checked at an au-
thorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The ABS or the ABS display is malfunction-
ing.

Continue driving with added caution.
Wheels may lock during hard brak-
ing, reducing steering capability.

Have the system checked at an au-
thorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Display
Possible cause
Suggested solution

299 Practical hints
What to do if …?
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AIR FILTER
CHANGE CARTRIDGE
VISIT WORKSHOP!
The air filter is clogged.

Have the air filter checked by an au-
thorized Mercedes-Benz Center.
@
AIRMATIC
STOP, CAR TOO LOW!
The vehicle is parked on an extremely
uneven surface.

Press the vehicle level control button
to select the raised vehicle level
(page 212).
The vehicle level control is malfunctioning.

Stop and press the vehicle level con-
trol button to select a higher vehicle
level (
page 212).

Do not turn steering wheel too far to
avoid damaging the front fenders.

Listen for scraping noises.

Do not exceed a speed of 50 mph
(80 km/h).

Visit a service center as soon as pos-
sible.
AIRMATIC
DRIVE CAREFULLY!
The capability of the AIRMATIC system is
restricted.

Do not exceed a speed of 50 mph
(80 km/h).

Visit a service center as soon as pos-
sible.

300 Practical hintsWhat to do if …?@
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The display for AIRMATIC or the AIRMATIC
system itself is malfunctioning.

Visit an authorized
Mercedes-Benz Center as soon as
possible.
AIRMATIC
LEV. SELECT. CANCELED!


You have exceeded a speed of 75 mph
(120 km/h).
or


You have maintained a speed of be-
tween 50 mph (80 km/h) and 75 mph
(120 km/h) for more than 5 minutes.

Press the vehicle level control button
to adjust the vehicle level
(page 212).
BAS
MALFUNCTION
VISIT WORKSHOP!
The BAS has detected a malfunction and
switched off.
The ESP is switched off, too. The ABS may
still be operational.

Continue driving with added caution.

Have the system checked at an au-
thorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The BAS or the BAS display is malfunction-
ing.

Continue driving with added caution.

Have the system checked at an au-
thorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Display
Possible cause
Suggested solution

301 Practical hints
What to do if …?
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#
BATTERY/ALTERNATOR
VISIT WORKSHOP!
The battery was charged with a battery
charger or jump started.

Have the battery checked at a ser-
vice station.
The battery is no longer charging.
Possible causes:

Alternator malfunctioning


Broken poly-V-belt
Do not forget that the brake system re-
quires electrical energy and may be operat-
ing with restricted capability. Considerably
greater brake pedal force is required and
the stopping distance is longer.

Stop immediately and check the
poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise
the engine will overheat due to an in-
operative water pump which may re-
sult in damage to the engine. Notify
an authorized Mercedes-Benz
Center.
If it is intact:

Drive immediately to the nearest au-
thorized Mercedes-Benz Center. Ad-
just driving to be consistent with
reduced braking responsiveness.

302 Practical hintsWhat to do if …?Display
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2
BRAKE WEAR
VISIT WORKSHOP!
The brake pads have reached their wear
limit.

Have the brake pads replaced as
soon as possible.
Except Canada:;Canada only:3
BRAKE FLUID
VISIT WORKSHOP!
There is insufficient brake fluid in the reser-
voir.

Risk of accident! Stop the vehicle
and notify an authorized
Mercedes-Benz Center. Do not add
brake fluid! This will not solve the
problem.
!Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Service Book-
let.
Warning!
G
Driving with this message displayed can re-
sult in an accident. Have your brake system
checked immediately. Don’t add brake fluid
before checking the brake system. Overfill-
ing the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and
the brake fluid catching fire. You can be se-
riously burned.
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks.

303 Practical hints
What to do if …?
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Possible cause
Suggested solution
F
CHIP CARD
CHECK BATTERY
KEYLESS-GO*card batteries are dis-
charged.

Change the batteries (
page 328).
CHIP CARD
NOT RECOGNIZED!
KEYLESS-GO*card is not recognized while
the engine is running because

the card is not in the vehicle


there is strong radio-frequency interfer-
ence

Stop the vehicle as soon as it is safe
to do so.

Search for the card.
Otherwise the vehicle cannot be central-
ly locked nor can the engine be started
again after it has been stopped.
KEYLESS-GO*card is momentarily not rec-
ognized.

Change the position of the card in
the vehicle.

Operate the vehicle with the
SmartKey in the ignition if necessary.
CHIP CARD
DETECTED IN VEHICLE
KEYLESS-GO*card left in the vehicle was
recognized while locking the vehicle from
the outside.

Take the card out of the vehicle.
CHIP CARD
VISIT WORKSHOP!
The KEYLESS-GO* system is malfunction-
ing.

Visit an authorized Mercedes-Benz
Center as soon as possible.

304 Practical hintsWhat to do if …?Display
Possible cause
Suggested solution
F
CHIP CARD
DO NOT FORGET
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no SmartKey in
the ignition.
Message is only a reminder.

Insert SmartKey in the ignition.

Take the KEYLESS-GO*card with you
when leaving the vehicle.
B
COOLANT
CHECK LEVEL!
The coolant level is too low.

Add coolant (
page 268).

If you have to add coolant frequently,
have the cooling system checked by
an authorized Mercedes-Benz Cen-
ter.
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You can be seriously burned.
!Do not ignore the low engine coolant
level warning. Extended driving with
the message and symbol displayed
may cause serious engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Do not drive without a sufficient
amount of coolant in the cooling sys-
tem. The engine will overheat, causing
major engine damage.