Page 271 of 361
To avoid the risk of burns, only touch those
components described in the Owner's Manual
and observe the relevant safety notes. G
Risk of injury
The radiator fan between the radiator and the
engine can start automatically, even if the key
has been removed from the ignition lock. For
this reason, you must not reach into the fan
rotation area. Otherwise, you could be
injured.
The electronic ignition system uses high volt-
age. For this reason, you must never touch
ignition system components (ignition coil,
ignition cable, spark plug connector or test
socket) while:
R the engine is running.
R the engine is being started.
R the ignition is switched on and the engine
is being cranked by hand.
X Make sure that the windscreen wipers are
switched off. G
Risk of injury
The windscreen wipers and wiper linkage
could be set in motion.
When the bonnet is open, you or others could
be injured by the wiper linkage.
Make sure that the windscreen wipers are
switched off. Remove the key or make sure
that no ignition position has been selected
with KEYLESS-GO. All indicator lights must be
off in the instrument cluster.
The bonnet release lever is located in the left-
hand footwell. X
Pull bonnet release lever 0001.
The bonnet is released.
! Make sure that the windscreen wipers are
not folded away from the windscreen .Oth-
erwise, you could damage the windscreen
wipers or the bonnet.
The handle for opening the bonnet is located
above the radiato rgrille. X
Reach into the gap, pull bonnet catch han-
dle 0002up and lift the bonnet.
Closing G
Risk of injury
Make sure that nobody can become trapped
as you close the bonnet.
X Lower the bonnet and let it fall from a
height of approximately 20 cm.
X Check that the bonnet has engaged prop-
erly. 268
Engine compartmentOperation
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Page 302 of 361
Display messages Possible causes/consequences and
0003 Solutions
0009
Turn on the igni‐
tion to release
the parking brake 0009
The indicato rlamp (red )flashes.
You attempted to release the electric parking brak ewhile the igni-
tion was switched off.
X Switch on the ignition. 0004
Check brake fluid
level G
Risk of accident
There is insufficient brake fluid in the brake fluid reservoir. In addi-
tion, the 0004indicator lamp in the instrumentc lusterlights up
and a warning tone sounds.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult a qualified specialist workshop.
Do not top up the brak efluid. This will not rectify the problem. 0004
EBD, ABS, ESP inop‐
erative See Own‐
er's Manual G
Risk of accident
EBD (Electronic Brake-force Distribution), ABS, ESP ®
, BA Sand hill
start assist are unavailable due to a malfunction. In addition, the
0002, 0001and0012 warning lamps in the instrument cluster light
up and a warning tone sounds.
The brake system continue sto function normally, but without the
functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 000F
Coolant Stop vehi‐
cle Switch engine
off The coolant is too hot. In addition, the
000Fwarning lamp in the
instrument cluster lights up and a warning tone sounds.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Make sure that the air supply to the radiator is not blocked, e.g.
by snow, slush or ice.
X Wait until the display message disappears before restarting the
engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display.
X If the coolant temperature increases again, visit a qualified spe-
cialist workshop immediately. Display messages
299Practical advice
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Page 319 of 361
Problem Possible causes/consequences and
0003 Solutions
The coolant tempera-
ture gauges shows a
value above 120 †. A
display message may
also appeara
nd a warn-
ing tone may sound. The coolant level is too low. The coolant is too hot and the engine
is no longe
rbeing cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 269). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled suffi-
ciently.
X
If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. PARKTRONIC
Problem Possible causes/consequences and
0003 Solutions
Only the red segments
in the PARKTRONIC
warning display are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds and
the indicator lamp in
the PARKTRONIC but-
ton lights up. PARKTRONIC has malfunctioned and has switched itself off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 284).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. 316
TroubleshootingPractical advice
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