2006 MERCEDES-BENZ R500 light

408 Practical hintsWhat to do if …Problem
Possible cause/conse-
quence
Suggested solution
?
(USA only)
±
(Canada only)
The yellow engine malfunction
indicator lamp comes on while
driving.
A loss of pressure has been
detected in the fuel system.
The fuel cap may not be closed
properly or the fuel system
may be leaky.

Check the fuel cap (
page 342).
If it is not closed properly:

Close the fuel cap.
If it is closed properly:

Have the fuel system checked by an
authorized Mercedes-Benz Light Truck
Center.
Your fuel tank is empty.

After refueling start, turn off and
restart the engine three or four times in
succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.

409 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
v
The yellow ESP
® warning lamp
comes on while the engine is
running.
The ESP
® is deactivated.
Risk of accident!
Adapt your speed and driving to the prevail-
ing road, weather, and traffic conditions.

Switch the ESP
® back on
(
page 102).
If the ESP
® cannot be switched back on:

Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
v
The yellow ESP
® warning lamp
flashes while driving.
The ESP
® or traction control has come into
operation because of detected traction loss
of at least one tire.

When driving off, apply as little throt-
tle as possible.

While driving, ease up on the acceler-
ator.

Adapt your speed and driving to the
prevailing road and weather condi-
tions.

Do not deactivate the ESP
®.
Exceptions: (
page 101)
Failure to follow these instructions
increases the risk of an accident.
The yellow fuel tank reserve warning lamp
in the fuel gauge comes on while driving.
The fuel level has gone below the reserve
mark.

Refuel at the next gas station
(page 342).

411 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
1
The red SRS indicator lamp comes
on while driving.
There is a malfunction in the restraint systems.
The air bags or emergency tensioning device
(ETDs) could deploy unexpectedly or fail to
deploy unexpectedly in an accident.

Drive with added caution to the
nearest authorized
Mercedes-Benz Light Truck
Center.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Light Truck Center immedi-
ately to have the system checked, otherwise
the SRS may not be activated when needed
in an accident, which could result in serious
or fatal injury, or it might deploy unexpect-
edly and unnecessarily which could result in
an accident and/or injury to you or to
others.

412 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
H
Combination low tire pres-
sure/TPMS malfunction telltale
for the TPMS or Advanced
TPMS* illuminates continuous-
ly.
The TPMS or Advanced TPMS* detects a
loss of pressure in at least one tire.

Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers. Observe the traffic situation
around you.

Read and observe messages in the
multifunction display.
If the tire inflation pressure in the respec-
tive tire(s) has (have) been corrected, the
combination low tire pressure/TPMS mal-
function telltale goes out after few minutes
driving.
H
Combination low tire pres-
sure/TPMS malfunction telltale
for the TPMS or Advanced
TPMS* flashes 60 seconds and
then stays illuminated.
There is a malfunction in the TPMS or
Advanced TPMS*.

Read and observe messages in the
multifunction display.

Have the TPMS or Advanced TPMS*
checked by an authorized
Mercedes-Benz Light Truck Center.
After the malfunction has been remedied,
the combination low tire pressure/TPMS
malfunction telltale goes out after few
minutes driving.

414 Practical hintsWhat to do if …Lamp in center consoleProblem
Possible cause/consequence
Suggested solution
59
The front passenger
front air bag off indicator
lamp illuminates and re-
mains illuminated with
the weight of a typical
adult or someone larger
than a small individual on
the front passenger seat.
The system is malfunctioning.

Have the system checked as soon as
possible by an authorized
Mercedes-Benz Light Truck Center.

Also read and observe any messages
in the multifunction display and follow
corrective steps (
page 423).
Warning!
G
If the59indicator lamp
illuminates and remains illuminated with the
weight of a typical adult or someone larger
than a small individual on the front passen-
ger seat, do not have any passenger use the
front passenger seat until the system has
been repaired.

415 Practical hints
What to do if …
Problem
Possible
cause/consequence
Suggested solution
59
The front passenger
front air bag off indicator
lamp does not illuminate
and/or does not remain
illuminated with the
weight of a typical
12-month-old child in a
standard child restraint or
less on the front passen-
ger seat.
The system is malfunction-
ing.

Make sure there is nothing between seat cushion and
child seat and check installation of the child seat.

Make sure no objects applying supplemental weight
onto the seat are present.

Make sure no objects which apply forces to the seat
are present (e.g. objects such as books, briefcases
etc. lodged behind or around the seat, head restraints
pushing against roof etc.). The system may recognize
such forces as supplemental weight.

If the front passenger front air bag off indicator lamp
remains out, have the system checked as soon as pos-
sible by an authorized Mercedes-Benz Light Truck
Center. Do not transport a child on the front passen-
ger seat until the system has been repaired.

Also note any messages in the multifunction display
and follow corrective steps (
page 423).
Warning!
G
If the59indicator lamp does
not illuminate or remains out with the
weight of a typical 12-month-old child in a
standard child restraint or less on the front
passenger seat, do not transport a child on
the front passenger seat until the system
has been repaired.

416 Practical hintsWhat to do if …Vehicle status messages in the multifunction display
Warning and malfunction messages
appear in the multifunction display located
in the instrument cluster.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the vehicle status message
memory menu in the control system
(page 173) displays both cleared and
uncleared messages.
High-priority messages appear in the
multifunction display in red color.Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (
page 158) or
buttonj,k,ÿ, orè on the
multifunction steering wheel.
Other messages of high priority and mes-
sages of less immediate priority can be
cleared from the multifunction display
using the reset button (page 158) or
buttonj,k,ÿ, orè on the
multifunction steering wheel. They are
then stored in the vehicle status message
memory (
page 173). Remember that
clearing a message will only make the mes-
sage disappear. Clearing a message will
not correct the condition that caused the
message to appear.
Warning!
G
All categories of messages contain
important information which should be
taken note of and, where a malfunction is
indicated, addressed as soon as possible at
an authorized Mercedes-Benz Light Truck
Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property dam-
age or personal injury.Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
Contact the nearest authorized
Mercedes-Benz Light Truck Center.

418 Practical hintsWhat to do if …Text messagesDisplay message
Possible cause/consequence
Possible solution
ABS
Malfunction
Visit workshop
The ABS has detected a malfunction
and has switched off.
The ESP
® and the BAS are also deac-
tivated.
The brake system is still functioning
normally but without the ABS avail-
able.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

Have the system checked at an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
Failure to follow these instructions increases
the risk of an accident.
Display malfunction
Visit workshop
The ABS or the ABS display is mal-
functioning.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability

Have the system checked at an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
Failure to follow these instructions increases
the risk of an accident.