2004 MERCEDES-BENZ CLK CABRIOLET key battery

305
Practical advice
Display messag esDisplay messages Possible cause
/consequ ence Possible sol
ution HTyre
pressu remonitor
not available! The tyre pressure loss warning fea-
ture has
been deactivat eddue toa
fault. 6
Have the tyre pressure loss warning*
checked at a qualified specialist workshop,
e.g. a Mercedes-Benz Servi ceCentre. F
Key
Check battery! The KEYLESS GO key* batteries are
discharged. 6
Chang ethe batteries ( =pa ge 354). F
Key
not detected! The KEYLESS GO key* is
not detect-
ed while the engine is running be-
cause:
! the key is not inside the vehicle
! there is strong interference
from a radio source 6
Stopyour vehicle as soon as itis safe to do
so.
6 Look for the key.
Switchi ngoff the engine prevents you from
locking the vehicle centrally or starting the
engine.
Operate the vehicl eusing the key function. F
Key
not detected! The KEYLESS GO key* is currently
not detected. 6
Alterthe position of the key in the vehicle.
6 Insert the key into the ignition lock and op-
erate the vehicle using the ignition lock. 209en_d2.boo Seite
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306 Practical advice
Display
messages Display messages Pos
sible cause /consequence Possible solution
FKey
still in
vehicle! The key has been detected in the
vehicle during locking. 6
Remove the key from the vehicle.
Key
Visit work shop! There is a fault with the KEYLESS
GO system*. 6
Visit a qualif ied specialist workshop, e.g. a
Mercedes-Benz Service Centre.
Replace key The key
isno longer working. 6
Visit a qualif ied specialist workshop, e.g. a
Mercedes-Benz Service Centre. A
Reserve fu
el The fuel level has fallen
into the re-
serve range. 6
Refuel at the nearest filling station
( = page 241). J
Doors open! Yo
u are trying to pull away but at
least one of the doors is open. 6
Close the doors. #
Undervolta
ge
Charge battery The vehicle battery has insufficient
voltage. 6
Start the engine. #
Undervolta
ge
Switch off
consumers The vehicle battery has insufficient
voltage. 6
Switch off any consumers that are not re-
quired. 209en_d2.boo Seite
306 Dienstag, 25. Mai 2004 7:26 19

335
Practical advice
Tr ou bleshooting Problem Possible caus
e/consequ ence Suggested sol
utions The battery check lamp on the remote
control does not light up when teste
d. The remote control batteries are dis-
charg
ed. 6
Chang ethe batteries ( =page 35 4). You have lost
are mote control. 6
Have the remote control cancelled at a
Mercedes-Benz Serv ice Ce ntre.
6 Report the loss immediately to the vehi-
cl e insurers.
6 If necessary, have the manual locks
changed too. You have
lost the emergency key element. 6
Report the loss immediately to the vehi-
cl e insurers.
6 If necessary, have the manual locks
changed too. The key cannot be turned in the ignition
lock. The key has been
inposition 0for an ex-
tended period. 6
Remove the key and re-insert it inthe ig-
nition lock.
6 Check the starter battery and chargeit
if necessary.
6 Switch on the ignition. 209en_d2.boo Seite
335 Dienstag, 25. Mai 2004 7:26 19

336 Practical advice
Trouble
shoo ting Problem Po
ssible caus e/consequ ence Su
ggested solutions The key cannot be turned
inthe ignition
lock. The
on-board voltage is too low. 6
Switch off consum ers that are not re-
quired, e.g. seat heating or interior light-
in g, an d try toturn the key again.
If this does not work:
6 Check the star ter battery and charge it
if necessary.
or
6 The vehicle may be jump-started
( = page 379).
or 6 Consult a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. 209en_d2.boo Seite
336 Dienstag, 25. Mai 2004 7:26 19

338 Practical advice
Trouble
shoo ting Problem Po
ssible caus e/consequence Suggested solutions
You cannot lock or unlock the vehicle us-
ing the KEYLESS GO key. There is strong interference from a radio
source. 6
Lock or unlock the vehicle using the
emergency key element (=
page 341). The battery check lamp in the KEYLESS GO
key does not light up
when tested. The KEYLESS GO key batteries are dis-
charged. 6
Change the batteries ( =page 355). The vehicle cannot be started using the
KEYLESS GO key and the selector lever
button. The KEYLESS GO key is in the vehi-
cle. A door is open. The key cannot be easily
detected. 6
Close the door and restart the engine. You did not depress the brake pedal
when
starting the engine. 6
Depress the brake pedal and press the
KEYLESS GO button on the selector le-
ver. There is strong interference from a radio
source. 6
Start your vehic lewith the KEYLESS GO
key in the ignition lock. You have lost the KEYLESS GO key. 6
Have the KEYLESS GO ke ycancelled at
a Mercedes-Benz Servic eCentre.
6 Report the loss immediately to the ve-
hicle insurers.
6 If necessary, have the manual locks
changed too. 209en_d2.boo Seite
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354 Practical advice
Changing the key batteries
If the remote control or KEYLESS GO key*
batteries are discharged, you will only be
able lock and unlock the vehicle manually
with the emergency key element
( = pa ge 341).
If the auxiliary heating* remote control
batteries are discharged, you will only be
able to switch the auxiliary heating on and
off with the sw itch inside the vehicle
( = pa ge 176).
It is advisable to have the batteries re-
placed at a qua lified speci alist workshop,
e.g. a Mercedes-Benz Servi ceCentre. i
Onlyever replace batteries in pairs.
Suitable batteries can be ob tained at a qualified
sp ecialist workshop, e.g. at a Mercede s-Be nz
Service Centre.
They will also cha nge batteries for youand take
back old ba tteries. In manyEU cou ntries and
some other countri es, retail outlets are obliged
to take bac kold batteries. You need two
3VCR 2025 cell batteries.
1 Emergency key element
2 Battery tray with release cat ch
6 Pull out emergency key element 1
(= page 341).
6 Press the grey release catch in the
opening in the direction of the arrow
using the emergency key element.
The battery compartment is unlocked.
6 Pull battery tray 2out of the remote
control in the direction of the arrow. Changing the key batteries
G
Risk of poisoning Batteries cont
ain poisonous and caustic
substances. Yoush ould therefore keep bat-
teries out of the reach of children.
If a battery is swallowed, consult a doctor
immediatel y. H
Environmental note Do not dispose of bat
teries with the house-
hold rubbish. Batteries contain highly toxic
substances.
Take discharged batteries to a qualified
sp ec ialist works hop, e.g. a Mercedes -Benz
Service Centre, or a special collection point
for old batteries. Remote control209en_d2.boo Seite
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355
Practical advice
Changing the key batteries
3 Batteries
4 Contact spring
6 Remo ve old batter ies3 out of the bat-
tery tray.
6 Insert the new batteries undern eath
contact spring 4with the positive ter-
minal facing upwards. Use a lint-free
cloth to do this.
6 Slide the bat tery tray back into the re-
mote contro lhousing until itsnaps into
place.
i When inserting the batteries, make sure that
the yare clean and lint-free.
6 Test the function of all the remote con-
trol buttons on the vehicle. Yo
un eed two 3V CR 2025 cel lbatteries.
6 Pull out the emergency key element
(
= page 341).
6 Release the battery tray and pull out
the key (=
page 355).
1 Batteries
2 Contact spring 6
Pull out old batteries 1in the direction
of the arrow.
6 Insert the new batteries underneath
contact spr ing 2 with the posit ive ter-
minal facing upwards. Use a lint-free
cloth to do this.
6 Slide the battery tray back into thekey
housing until it snaps into place.
i When inserti ngthe batteries, make sure that
they ar eclean and lint-free.
6 Test the KEYLESS GO functions on the
vehicle. KEYLESS GO key*209en_d2.boo Seite
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356 Practical advice
Changing the key batteries
You need two 12V pin batteries.
1 Batteries
2 Battery cover 6
Slide off battery cover 2.
6 Remove old batteries 1.
6 Insert the new batteries. Observe the
plus and minus signs in the remote
control casing.
6 Slide the battery co ver back onto the
remote control.
i Whe ninserting the batteries, make sure that
the yare clean and lint-free.
6 Test the auxiliary heating functions on
the vehicle us ing the remote control. Auxiliary heating* remote control209en_d2.boo Seite
356 Dienstag, 25. Mai 2004 7:26 19