Page 296 of 381

Troubleshooting
293Problem Possible cause/consequence Suggested solutions
The yellow reserve fuel warning
lamp comes on while the engine
is running. The fuel level has fallen below the
reserve range. The operation of
the auxiliary heating* can no lon-
ger be guaranteed. X
Refuel at the nearest filling station. Warning tones
Problem Possible cause/consequence Suggested solutions
The anti-theft warning alarm* is
triggered. You have opened the vehicle
using the emergency key element
without deactivating the anti-
theft alarm system* first. X
Switch off the alarm (Y page 63).You hear a warning tone. A message appears in the multi-
function display. X
See the explanations for the display message (Y page 259).You hear a warning tone. You are driving with the parking
brake applied. X
Release the parking brake. You hear a warning tone. You did not switch off the lights
when leaving the vehicle. X
Turn the light switch to MorU.
or
X If the rear foglamp is switched on: press the light switch in as far
as it will go. Practical advice
* optional
164_AKB; 5; 5, en-GB
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Troubleshooting
300 Parktronic*
Problem Possible cause/consequence Suggested solutions
Only the red segments in the
Parktronic warning display are lit.
You also hear a warning tone for
approximately two seconds.
Parktronic is deactivated after
approximately 20 seconds and
the indicator lamp in the Park-
tronic button lights up. Parktronic has malfunctioned
and has switched itself off. X
If problems persist, have Parktronic checked at a qualified spe-
cialist workshop. Only the red segments in the
Parktronic warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The Parktronic sensors are dirty
or there is interference. X
Clean the Parktronic sensors ( Ypage 251).
X Switch the ignition back on. Only the red segments in the
Parktronic warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The problem may be caused by an
external source of radio or ultra-
sound waves. X
See if Parktronic functions in a different location. Practical advice
* optional
164_AKB; 5; 5, en-GB
wobuchh
,V ersion: 2.10.6
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Page 314 of 381

Changing the batteries
3111
To move forwards
2 To push down
3 To push back
X Move the top of the head restraint cushion
forwards in the direction of arrow 1.
X Push the head restraint cushion down in
the direction of arrow 2as far as it will go.
X Push the head restraint cushion firmly
backwards in the direction of arrow 3until
it engages.
X Repeat this procedure for the second head
restraint. Changing the batteries
Notes
It is advisable to have the batteries replaced
at a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre. G
Risk of poisoning
Batteries contain toxic and caustic sub-
stances. For this reason, keep batteries
away from children.
If a battery is swallowed, consult a doctor
immediately. H
Environmental note
Do not dispose of batteries with the house-
hold rubbish. They contain highly toxic sub-
stances.
Take discharged batteries to a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre, or to a special collection
point for old batteries. Key or KEYLESS GO key*
Checking the batteries X
Press the jork button.
The batteries are in order if the battery
charge indicator lamp lights up briefly.
Changing the batteries You require two CR 2025 3 V cell batteries.
X
Remove the emergency key element from
the key (Y page 308). 1
Emergency key element
2 Battery tray Practical advice
* optional
164_AKB; 5; 5, en-GB
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Changing the bulbs
315
Observe the following points:
R
Use only the bulb types specified here.
R To prevent a short-circuit, switch off the
lights before changing a bulb.
R Only hold bulbs with a clean, lint-free cloth.
R Do not work with wet or greasy fingers.
R If the new bulb still does not light up, con-
sult a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
i Have the headlamp setting checked reg-
ularly at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. Changing the front bulbs
i ML 500: the fuse box in the engine com-
partment must be removed before a bulb is
changed in the headlamp on the right-hand
side. Have the work carried out at a quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre. Replacing dipped-beam headlamps
(vehicles with halogen headlamps) 1
Housing cover for dipped-beam headlamp
2 Bulb holder for dipped-beam headlamp
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 1anti-clockwise and
remove it.
X Turn bulb holder 2anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 2.
X Insert the new bulb into bulb holder 2.X
Insert bulb holder 2and turn it clockwise.
X Align housing cover 1and turn it clock-
wise.
Replacing the bulbs in the main-beam
headlamp 1
Housing cover for main-beam headlamp
2 Bulb holder for main-beam headlamp
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 1anti-clockwise and
remove it.
X Turn bulb holder 2anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 2.
36 These bulbs must be replaced at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre. Practical advice
164_AKB; 5; 5, en-GB
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Changing the bulbs
316
X
Insert the new bulb into bulb holder 2.
X Insert bulb holder 2and turn it clockwise.
X Place housing cover 1back on and turn it
clockwise until it engages.
Replacing side/parking lamp bulbs 1
Bulb holder for side/parking lamp
X Switch off the lights.
X Open the bonnet.
X Turn bulb holder 1anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 1.
X Insert the new bulb into bulb holder 1.
X Insert bulb holder 1and turn it clockwise. Replacing the bulbs in foglamps with-
out cornering light function/AMG Styl-
ing package* foglamps/foglamps on
the ML 63 AMG
Foglamps without cornering light function
1
Cover
2 Front foglamp
X Switch off the lights.
X Carefully detach cover 1using a suitable
object, e.g. a screwdriver.
Cover 1disengages.
X Remove cover 1. AMG Styling package* foglamps/foglamps on the
ML 63 AMG
1
Cover
2 Front foglamp
X Switch off the lights.
X Slide a suitable object, e.g. a screwdriver,
carefully into the recess between cover
1 and the bumper.
X Detach cover 1and pull it out. If neces-
sary, carefully use the screwdriver to prise
it off. Practical advice
* optional
164_AKB; 5; 5, en-GB
wobuchh,
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Changing the bulbs
317Front foglamp
3
Foglamp screws
X Remove screws 3.
i Only remove screws 3. Do not turn the
front foglamp adjustment screws. If the
adjustment screws are turned, the front
foglamp adjustment must be checked at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
X Remove front foglamp 2. Front foglamp
4 Bulb holder for front foglamp
X Turn bulb holder 4anti-clockwise to the
stop and remove it.
X Pull the bulb out of bulb holder 4.
X Insert the new bulb into bulb holder 4.
X Insert bulb holder 4and turn it clockwise.
X Insert front foglamp 2.
X Replace and tighten screws 3.
X Insert cover 1and press in firmly.
Cover 1snaps into place. Replacing the bulbs in foglamps with
cornering light function* 1
Front foglamp
2 Cover screws
3 Cover
X Switch off the lights.
X Remove screws 2.
X Remove cover 3with foglamp with cor-
nering light function. Practical advice
* optional
164_AKB; 5; 5, en-GB
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Changing the bulbs
3184
Bulb holder for front foglamp
X Turn bulb holder 4anti-clockwise to the
stop and remove it.
X Pull the bulb out of bulb holder 4.
X Insert the new bulb into bulb holder 4.
X Insert bulb holder 4and turn it clockwise.
X Insert cover 3with foglamp with cornering
light function.
X Replace and tighten the screws 2.Replacing the turn signal lamps 1
Bulb holder for turn signal (PY 5 W)
2 Bulb holder for turn signal (P 21 W)
X Switch off the lights.
X Open the bonnet.
X Turn bulb holder 1or2 anti-clockwise
and pull it out.
X Pull the bulb out of bulb holder 1or2.
X Insert the new bulb into bulb holder 1or
2.
X Insert bulb holder 1or2 and turn clock-
wise. Changing the rear bulbs
Opening and closing the side trim pan-
els You must open the side trim panel in the load
compartment before changing the bulbs in
the tail lamps.
Left-hand side trim panel
Left-hand side trim panel
1
Release catch
2 Side trim panel
X To open the side trim panel: turn catch
1 90° in the direction of the arrow and
remove side trim panel 2.Practical advice
164_AKB; 5; 5, en-GB
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Changing the bulbs
319Left-hand stowage compartment
1
Release catch
2 Stowage compartment
X To open the stowage compartment:
insert a suitable object, e.g. a coin, into the
slot of release button 1.
X Turn release button 190°in the direction
of the arrow and remove the stowage com-
partment.
X To close the stowage compartment:
insert the stowage compartment and turn
release button 1in the opposite direction
to the arrow until the slot in the release
button is in a vertical position.
X To close the side trim panel: insert the
side trim panel and turn catch 190° in the
opposite direction to the arrow. Right-hand side trim panel
Right-hand side trim panel
1
Release catch
2 Side trim panel
X To open: insert a suitable object, e.g. a
coin, into the slot of release catch 1on
side trim panel 2.
X Turn release catch 190° in the direction
of the arrow and remove side trim panel
2.
X To close: insert side trim panel 2and turn
catch 190° in the opposite direction to
the arrow. Changing the tail lamps X
Switch off the lights.
X Open the luggage compartment.
X Open the side trim panel (Y page 318). Tail lamps without LEDs*
1
Brake lamp
2 Reversing lamp
3 Rear foglamp (left)/tail lamp/parking
lamp
4 Rear foglamp (left)/tail lamp/parking
lamp
5 Turn signal lamp Practical advice
* optional
164_AKB; 5; 5, en-GB
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