Page 398 of 506

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.
Page 399 of 506

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.
Page 400 of 506
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.
Page 401 of 506

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.
Page 402 of 506

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.
Page 403 of 506

401 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
H
Tire pressure, RR
Check tire
The right rear tire inflation pres-
sure 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., FL
The left front 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, FL
Check tire
The left front tire inflation pres-
sure is low.
Carefully bring the vehicle to a halt.
Check and adjust the tire inflation pressure.
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.
Page 404 of 506
402 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
H
Caution
Tire pres., FR
The right front 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, FR
Check tire
The right front tire inflation pres-
sure 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).
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.
Page 410 of 506
408 Practical hintsWhere will I find ...?
In the case of a flat tire, you may tempo-
rarily use the spare wheel when observing
the following restrictions:
Do not exceed a vehicle speed of
50 mph (80 km / h).
Drive to the nearest tire repair facility
to have the flat tire repaired or re-
placed as appropriate.
Do not operate vehicle with more than
one spare wheel mounted.
For more information, see “Spare wheel”
(
page 457).
Luggage box
Remove luggage box
1Fastening clip
2Luggage box
Turn fastening clips1 to the left up-
wards from fastening bolts.
Lift luggage box in the area of the fas-
tening bolts and remove it from trunk.
Warning!
G
The dimensions of the spare wheel
(Minispare wheel or collapsible tire) are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted.
The spare wheel should only be used tempo-
rarily, and replaced with a regular road
wheel as quickly as possible.