2008 MERCEDES-BENZ A-CLASS HATCHBACK steering

Display
messages 211Display messages Possible cause/consequence Possible solution
Tyre press. Check tyres
G
Risk of accident
The tyre pressure loss warning system has
detected a significant loss in pressure. X
Stop the vehicle witho ut making any sudden
steering or braking manoeuvres. Pay attention
to traffic conditions as you do so.
X Check the tyres.
X Check the tyre pressure. If necessary, correct
the tyre pressure (Y page 178).
X If necessary, repair the faulty tyre or change
the wheel ( Ypage 253).
X Then restart the tyre pressure loss warning
system once the tyre pressure is correct
(Y page 179). Run Flat Indi-
cator inoperative The tyre pressure loss warning system is
faulty. X
Visit a qualified specialist workshop. Check tyres Then restart Run
Flat Indicator A tyre pressure loss warning system dis-
play message appeared. X
Correct the tyre pressure on all tyres
(Y page 178).
X Restart the tyre pressure loss warning system
(Y page 179). Run Flat Indi-
cator inoperative The tyre pressure loss warning system is
faulty. X
Visit a qualified specialist workshop. SRS Restraint system
malfunction Con-
sult workshop G
Risk of injury
There is a malfunction in the restraint sys-
tem. X
Visit a qualified specialist workshop immedi-
ately. Practical advice
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Display
messages 215Display messages Possible cause/consequence Possible solution
The poly-V-belt ma
y have torn. X
Pull over and stop the vehicle safely and switch
off the engine, paying attention to road and
traffic conditions.
X Check the poly-V-belt.
X If the poly-V-belt is torn: do not continue
driving. Consult a qualified specialist work-
shop.
X If the poly-V-belt is not damaged: do not
start the engine again until the display mes-
sage disappears. Otherwise, there is a risk of
engine damage. B Top up coolant See
Owner's Manual The coolant level is too low. X
Top up the coolant, observing the warning
notes before doing so (Y page 175).
X If the coolant needs topping up more often than
usual, have the engine coolant system checked
at a qualified specialist workshop. 3 Power steer. mal-
function Consult
workshop G
Risk of accident
There is no power assistance for the steer-
ing. You will need to use more force to
steer.
The steering assistant STEER CONTROL is
also deactivated. X
Check whether you are able to apply the extra
force required.
X If you are able to steer safely: carefully drive
on to a qualified specialist workshop.
X If you are unable to steer safely : do not drive
on. Contact the nearest qualified specialist
workshop. Practical advice
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,V ersion: 2.10.6
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Troubleshooting
224 Warning and indicator lamps in the instrument cluster
Problem Possible cause/consequence Suggested solutions
-
Theyellow ABS warning
lamp comes on while the
engine is running. G
Risk of accident
ABS (Anti-lock Brake System) is
deactivated due to a fault. There-
fore, ESP ®
(Electronic Stability
Program), BAS (Brake Assist), the
steering assistant STEER CON-
TROL, the hill start assist and the
tyre pressure loss warning sys-
tem are also deactivated.
The brake system continues to
function normally, but without
electronic support. The wheels
could therefore lock if you brake
hard.
If the ABS control unit is faulty,
other systems may also not be
available: e.g. Parktronic sys-
tem*, the navigation system* or
the Autotronic*. X
Drive on carefully.
X Observe the additional messages in the multi-function display
(Y page 202).
X Visit a qualified specialist workshop. -
The yellow ABS warning
lamp comes on while the
engine is running. G
Risk of accident
The on-board voltage is too low.
ABS has been deactivated due to
undervoltage. X
Switch off consumers that are not required, e g. reading lamps or
interior lighting.
ABS will be available again as soon as the vehicle's electrical sys-
tem voltage increases. Practical advice
* optional
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Troubleshooting
225Problem Possible cause/consequence Suggested solutions
Therefore, ESP
®
, BAS, the steer-
ing assistant STEER CONTROL,
hill start assist and the tyre pres-
sure loss warning system are also
deactivated.
The brake system continues to
function normall y, but without
electronic support. The wheels
could therefore lock if you brake
hard. v
The yellow ESP ®
warning
lamp is lit while the engine
is running. In addition, a
message appears in the
multi-function display. G
Risk of accident
ESP ®
is unavailable due to a mal-
function.
The following systems have also
been deactivated:
R BAS
R the steering assistant STEER
CONTROL
R hill start assist
R the tyre pressure loss warning
system
The braking system remains
available with full brake boosting
effect but without the above func-
tions. X
Observe the additional messages in the multi-function display
(Y page 202).
X Drive on carefully.
X Visit a qualified specialist workshop. Practical advice
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Troubleshooting
239Key
Problem Possible cause/consequence Suggested solutions
You cannot lock or unlock the
vehicle using the key. The key batteries are discharged
or nearl
y discharged. X
Point the tip of the key at the driver's door handle from close range
and try to unlock or lock the vehicle again.
If this does not work:
X Unlock the vehicle using the emergency key element
(Y page 241).
X Check the key batteries (Y page 244) and replace them if neces-
sary ( Ypage 244). The key is faulty. X
Unlock the vehicle using the emergency key element
(Y page 241).
X Have the key checked at a qualified specialist workshop. The battery charge indicator lamp
of the key does not go on during
the test. The key batteries are discharged. X
Change the batteries ( Ypage 244). You have lost a key. X
Have the key cancelled at a Mercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. You have lost the emergency key
element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. The engine cannot be started
using the key. The steering lock is mechanically
blocked. X
Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. Practical advice
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Towing and tow-starting
268 Towing and tow-starting
Points to remember
G
Risk of accident
If you have the vehicle towed, you must use
a rigid towing bar if:
R the engine is not running.
R there is a brake system malfunction.
R there is a malfunction in the voltage sup-
ply or the vehicle's electrical system.
The electric power steering and the brake
force booster do not work when the engine
is not running. Greater braking force will
then be required and brake pedal travel will
be longer. If necessary, depress the brake
pedal with full force.
Do not tow the vehicle if the key cannot be
turned in the ignition lock. If this is the case,
the steering is locked and the vehicle can-
not be steered.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehi-
cle.
It is better to have the vehicle transported
than to have it towed. When towing, observe the legal requirements
in all countries concerned.
!
When towing, pull away slowly and with-
out jerking. If the tractive power is too high,
the vehicles could be damaged.
! Do not use the towing eye for recovery,
as this could damage the vehicle. If in
doubt, recover the vehicle with a crane.
! You may tow the vehicle for a maximum
of 50 km. A towing speed of 50 km/h must
not be exceeded.
With towing distances over 50 km, the
entire vehicle needs to be lifted up and
transported.
! Only secure the tow cable or towing bar
to the towing eyes. You may otherwise
damage the vehicle.
R Vehicles with AUTOTRONIC* must not be
tow-started.
R If the engine does not start, try jump-start-
ing it (Y page 266).
R If it is not possible to jump-start the vehicle,
have it towed to the nearest qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre. R
The selector lever must be in position N
when towing a vehicle with AUTO-
TRONIC*.
R If you are towing the vehicle over a consid-
erable distance, this must only be done
with the front axle raised.
R The ignition must be switched off if you are
towing the vehicle with the front/rear axle
raised. Intervention by ESP ®
could other-
wise damage the brake system.
R Before towing the vehicle, make sure that
the battery is connected and charged. Oth-
erwise:
-you cannot switch on the ignition
- you cannot move the selector lever
to N(on vehicles with AUTOTRONIC*)
- you have no support when braking
i Switch off the automatic locking feature
before the vehicle is towed (Y page 111).
You could otherwise be locked out when
pushing or towing the vehicle. Practical advice
* optional
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Towing and tow-starting
270
Vehicles with AUTOTRONIC* X
Turn the key to position 2in the ignition
lock.
X Move the selector lever to N.Tow-starting (emergency engine
starting)
Please note:
R Vehicles with AUTOTRONIC* must not be
tow-started.
R The battery must be connected.
R The engine and catalytic converter must be
cold.
R Avoid repeated and lengthy starting
attempts.
Vehicles with manual transmission X
Turn the key to position 2(Y page 62) in
the ignition lock.
X Fully depress the clutch pedal.
X Shift to neutral. X
Tow the vehicle or let it roll.
X Shift to a suitable gear and bring the clutch
pedal up slowly. Do not depress the accel-
erator pedal.
The engine is started. Removing the towing eye
X Take the wheel wrench from the vehicle
tool kit ( Ypage 200).
X Insert the wheel wrench handle into the
towing eye and turn it anti-clockwise.
X Unscrew the towing eye.
X Replace the cover and press it until it
engages.
X Return the towing eye and the wheel
wrench to the vehicle tool kit. Transporting the vehicle
The towing eyes or trailer coupling *can be
used to pull the vehicle onto a trailer or trans-
porter if you wish to transport it.
! Only lash the vehicle down by the wheels
or wheel rims, not by parts of the vehicle
such as axle or steering components. The
vehicle could otherwise be damaged.
Vehicles with manual transmission X
Shift to neutral.
Vehicles with AUTOTRONIC* X
Turn the key to position 2(Y page 62) in
the ignition lock.
X Move the selector lever to N.Practical advice
* optional
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