2005 MERCEDES-BENZ E320CDI ac control

370 Practical hintsWhat to do if …Display
Display message
Possible cause
Possible solution
Low
Battery
Conven. functions
temporarily
unavailable
The battery has insufficient voltage
and can no longer supply conve-
nience functions such as the rear
window defroster.
As soon as the on-board voltage is sufficient,
the consumers will switch on again.
Please note:
Conven. functions
available again

On-board voltage is sufficient; the
consumers will switch on again.
Cruise control
Drive to workshop
Cruise control or Distronic* is mal-
functioning.

Have the cruise control or Distronic*
checked by an authorized Mercedes-Benz
Center.
Distronic
External interference
Reactivate
The Distronic* is switched off and is
temporarily unavailable.

Try activating the Distronic* again later.
Drive to workshop
The Distronic* is malfunctioning or
the display is malfunctioning.

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

386 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
G
Display malfunction
Visit workshop
The displays for several systems have
malfunctioned. Some systems them-
selves may also have malfunctioned.

Continue driving with added caution.
When the display is malfunctioning,
warnings and malfunction messages
might not be displayed.

Have the electronic systems checked
by an authorized Mercedes-Benz Cen-
ter.
±
Display malfunction
Visit workshop
Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:

Coolant temperature display


Tachometer


Cruise control display

Have the electronic systems checked
by an authorized Mercedes-Benz Cen-
ter.
J

Doors open
You are attempting to drive with one or
more doors open.

Close the doors.

394 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
High beam,
left
The left high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
High beam,
right
The right high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is malfunction-
ing.

Replace the bulb as soon as possible.
License plate lamp,
right

The right license plate lamp is malfunc-
tioning.

Replace the bulb as soon as possible.
Light sensor
Drive to workshop
The lamp sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp opera-
tion to manual mode (
page 162).

Switch on headlamps using the exteri-
or lamp switch.
Low beam,
left
The left low beam lamp is malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:

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

396 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. monitor
reactivated
The tire pressure monitoring system is
using the current pressure values as the
basis for monitoring.
Tire pressure

displayed only
after driving
a few mins.
The tire inflation pressure is being
checked.
Tire pres. monitor
temporarily
unavailable
The tire pressure monitoring system* is
unable to monitor the tire inflation pres-
sure due to

the presence of several wheel sensors
in the vehicle.


excessive wheel sensor tempera-
tures.


a nearby radio interference source.


unrecognized wheel sensors mount-
ed.

Remove any extra wheel sensors from
the vehicle.
As soon as the causes of the malfunction
have been removed, the tire pressure
monitoring system automatically be-
comes active again.
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. Contin-
ued driving with a flat tire will cause
excessive heat build-up and possibly a fire.

397 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. monitor
reactivated
The tire pressure monitoring system is
using the current pressure values as the
basis for monitoring.
Tire pressure

displayed only
after driving
a few mins.
The tire inflation pressure is being
checked.
Tire pres. monitor
temporarily
unavailable
The tire pressure monitoring system* is
unable to monitor the tire inflation pres-
sure due to

the presence of several wheel sensors
in the vehicle.


excessive wheel sensor tempera-
tures.


a nearby radio interference source.


unrecognized wheel sensors mount-
ed.

Remove any extra wheel sensors from
the vehicle.
As soon as the causes of the malfunction
have been removed, the tire pressure
monitoring system automatically be-
comes active again.
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. Contin-
ued driving with a flat tire will cause
excessive heat build-up and possibly a fire.

398 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
H
Reactivate
tire pres. monitor
after corr. pres.
There was a tire pressure warning mes-
sage.
The yellow warning lamp for the tire pres-
sure monitoring system comes on and
you have not reactivated the system
since the last tire pressure warning mes-
sage.

Reactivate the tire pressure monitor-
ing system after correcting the tire
pressure values (
page 324).
Tire pres. monitor
deactivated
Drive to workshop
The tire pressure monitoring system is
malfunctioning.
A wheel without proper sensor was in-
stalled.

Have the tire pressure monitoring sys-
tem checked by an authorized
Mercedes-Benz Center.

Change the wheel (
page 425).
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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

399 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres.
Please rectify
The pressure is too low in one or more
tires.

Check and correct tire inflation pressure as
required (
page 322).
Caution
Tire pressure
One or more tires is deflating.

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

Change the wheel (
page 425).

Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz Cen-
ter.
Tire pres.
Check tire
The tire inflation pressure in one or
more tires is already below the mini-
mum value.
The tire inflation pressure in one or
more tires is low.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

Check the tire.

Check and correct the tire pressure as re-
quired.

If necessary change the wheel (
page 425).
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. Contin-
ued driving with a flat tire will cause
excessive heat build-up and possibly a fire.

400 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
H
Caution
Tire pres., RL
The left rear tire is deflating.

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

Change the wheel (
page 425).

Have the damaged wheel repaired or replaced
at an authorized Mercedes-Benz Center.
Tire pressure, RL
Check tire
The left rear tire inflation pressure is
low.

Carefully bring the vehicle to a halt.

Check the tire.

Check and adjust the tire inflation pressure.

If necessary, change the wheel (
page 425).
Caution
Tire pres., RR
The right rear tire is deflating.

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

Change the wheel (
page 425).

Have the damaged wheel repaired or replaced
at 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. Contin-
ued driving with a flat tire will cause
excessive heat build-up and possibly a fire.