
Cockpit75
Safety First
Operating instructions
Practical tips
Te c h n i c a l  D a t a
•
The engine compartment is a dangerous area! Before you open the 
bonnet to work on the engine or in the engine compartment, you must 
switch the engine off and allo w it to cool to reduce the risk of scalding or 
other kind of injuries. Read and  observe the relevant warnings 
⇒ page 213.Note
•
The appropriate warning lamp for a fault  will light up in vehicles without 
warning or information texts in the display.
•
In vehicles with warning or information texts on the screen, the appro-
priate warning lamp for a fault will ligh t up and a warning or information text 
will also appear on the screen.
Fuel level / reserve 
This symbol lights up to indicate that the fuel tank under the 
reserve level.It lights up when only 7 litres of fuel remain in the tank. Also, an  audible 
warning  is given. This serves as a reminder to fill up with fuel at the earliest 
opportunity  ⇒page 210.
The instrument panel displ ays the following message
8): PLEASE REFUEL! .
Coolant Level* / temperature 
The warning lamp lights up if the coolant temperature is too 
high or if the coolant level is too low.There is a fault if:•
The warning symbol does not go out again after a few seconds.
•
The warning lamp lights up or flashes while the vehicle is moving, while 
three acoustic warning signals  ⇒  are emitted.
This means that either the coolant level is too low or the coolant temperature 
is too high.
Coolant temperature too high
The instrument panel disp lays the following message
9): CHECK COOLANT 
INSTRUCTIONS MANUAL  ⇒ page 220.
First look at the coolant temperature gauge. The coolant temperature is too 
high if the needle is over the warning area on the dial.  Stop the vehicle, 
switch the engine off and wait for it to cool down.  Check the coolant level.
If the coolant level is correct, the over heating may be caused by a malfunction 
of the radiator fan. Check the radiator fan fuse and have it replaced if neces-
sary  ⇒page 249.
If the warning lamp lights  up again after driving on for a short distance,  stop 
the vehicle and switch the engine off . Contact an Authorised Service Centre 
or a qualified workshop.
Coolant level too low
The instrument panel disp lays the following message10): STOP CHECK 
COOLANT INSTRUCTIONS MANUAL .
8)Depending on the version of the model.WARNING (continued)
9)Depending on the version of the model.10)Depending on the version of the model.
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Driving
168
WARNING
•
Never start or run the engine in un ventilated or closed rooms. The 
exhaust fumes contain carbon mono xide, an odourless and colourless 
poisonous gas. Risk of fatal accidents. Carbon monoxide can cause loss of 
consciousness. It can also cause death.
•
Never leave the vehicle unattended if the engine is running.
•
Never use “cold start sprays”, they could explode or cause the engine 
to run at high revs. Risk of injury.Caution
•
When the engine is cold, you should av oid high engine speeds, driving at 
full throttle and over-loading the  engine. Risk of engine damage.
•
The vehicle should not be pushed or towed more than 50 metres to start 
the engine. Unburnt fuel could enter th e catalytic converter and damage it.
•
Before attempting to push-start or tow a vehicle in order to start it, you 
should first try to start it using the batte ry of another vehicle. Note and follow 
the instructions  ⇒page 262, “Jump-starting”.For the sake of the environment
Do not warm-up the engine by running th e engine with the vehicle stationary. 
You should drive off as soon as you start the engine. This helps the engine 
reach operating temperature faster and reduces emissions.Switching the engine off– Stop the engine.
– Turn the ignition key to position  ⇒page 165, fig. 138   .
After switching the engine off, the radiator fan may run on for up to 10 
minutes. It is also possible that the fan turns itself on once more if the coolant 
temperature increases due to the heat accumulated in the engine compart-
ment or due to its prolonged exposure to solar radiation.
WARNING
•
Never switch the engine off until the vehicle is completely stationary.
•
The brake servo works only when the engine is running. With the 
engine switched off, more strength is needed to brake. As normal brake 
operation cannot be performed, risk of accidents and serious injury may 
exist.
•
The steering lock can be immediately blocked once the key is removed 
from the ignition lock. The vehicle cannot be steered. Risk of accident.Caution
If the engine has been driven hard for a long period, the engine could over-
heat when it is switched off. Risk of engine damage. For this reason, you 
should idle the engine for approx. 2 m inutes before you switch it off.
A0
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Cleaning and caring for your vehicle205
Safety First
Operating instructions
Practical tips
Te c h n i c a l  D a t a
Underbody sealant
The vehicle underbody is coated to protect it from chemical 
and mechanical damage.The protective coating can be damaged when driving. We recommend you to 
ckeck the protective coating under the body and on the running gear, and 
reinstated if necessary, before and after the winter season.
We recommend you to go to your Authorised Service Centre to carry out repair 
work and additional anti-corrosion work.
WARNING
Do not apply underseal or anti-corrosion coatings to the exhaust pipes, 
catalytic converter or the heat shields on the exhaust system. The heat of 
the exhaust system or the engine could cause them to ignite! Fire hazard.Cleaning the engine compartment
Take special care when cleaning the engine compartment.Anti-corrosion treatment
The engine compartment and the surface of the power unit are given anti-
corrosion treatment at the factory.
Good corrosion protection is particularly important in winter when the car is 
frequently driven on salted roads. To prevent the salt corroding the vehicle, 
the entire engine compartment should  be thoroughly cleaned before and 
after winter.
Your Authorised Service Centre  has got the necessary equipment to provide 
the correct cleaning and preserving products. For this reason, we recommend 
having this work performed by them. The anti-corrosion protection is usually removed if the engine compartment 
is cleaned with grease remo
ving solutions, or if you have the engine cleaned. 
On commissioning theis work, ensure that all surfaces, seams, joints and 
components in the engine compartment are given anti-corrosion treatment.
WARNING
•
When working in the engine compartm ent, always observe the safety 
warnings  ⇒page 213.
•
Before opening the bonnet, switch the engine off, apply the parking 
brake firmly and always remove the key from the ignition.
•
Allow the engine to cool before you clean the engine compartment.
•
Do not clean the vehicle underbody, wheel arches without protecting 
your hands and arms. You may cut your self on sharp-edged metal parts. 
Failure to comply could result in injury.
•
Moisture, ice and salt on the brakes  may affect braking efficiency. Risk 
of accident. Directly after washing,  avoid sudden and sharp braking.
•
Never touch the radiator fan. It is temperature-controlled and could 
start automatically, even when the key is removed from the ignition!For the sake of the environment
Fuel, grease and oil deposits could be removed when the engine is washed. 
The polluted water must be cleaned in an oil separator. For this reason, 
engine washing should be carried out on ly by a qualified workshop or a petrol 
station.
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Checking and refilling levels
214
WARNING
All work on the engine or in the engine compartment, e.g. checking and 
refilling fluids, involves the danger of injury and scalding as well as the risk 
of accident or fire.•
Never open the bonnet if you see steam, smoke or coolant escaping 
from the engine compartment. Otherwise, there is a risk of sustaining 
burns. Wait until no more steam or  coolant is emitted, then allow the 
engine to cool before carefully opening the bonnet.
•
Switch off the engine and remove the key from the ignition.
•
Apply the handbrake and move the gea r stick to neutral or selector 
lever to position P.
•
Keep children away from the vehicle.
•
Never touch hot engine parts. There is a risk of burns.
•
Never spill liquids on a hot engine or on a hot exhaust gas system. This 
is a fire hazard.
•
Avoid causing short-circuits in the electrical system, particularly at the 
points where the jump leads are attached  ⇒page 263. The battery could 
explode.
•
Never touch the radiator fan. It is temperature controlled and could 
start automatically, even when the engine has been switched off and the 
key removed from the ignition!
•
Do not unscrew the cap on the expansion tank when the engine is hot. 
If the coolant is hot, the cooling system will be pressurised!
•
Protect face, hands and arms by covering the cap with a large, thick 
cloth to protect against escaping coolant and steam.
•
Always make sure you have not left any objects, such as cleaning cloths 
and tools, in the engine compartment.
•
If you have to work underneath the vehicle, you must use suitable 
stands additionally to support the vehicle,  there is a risk of accident!. A 
hydraulic jack is insufficient for securing the vehicle and there is a risk of 
injury.
•
If any work has to be performed when the engine is started or with the 
engine running, there is an additional, potentially fatal, safety risk from the 
rotating parts, such as the drive belt s, alternator, radiator fan, etc., and 
from the high-voltage ignition system. You should also observe the 
following points:
−Never touch the electrical wiring of the ignition system.
− Ensure that jewellery, loose clothing and long hair do not get 
trapped in rotating engine parts. Danger of death. Before starting any 
work remove jewellery, tie back and cover hair, and wear tight-fitting 
clothes.
− Always think carefully about pressing the accelerator if a gear is 
engaged in either an automatic or manual gearbox. The vehicle could 
move, even if the handbrake is applied. Danger of death.
•
If work has to be carried out on the fuel system or on electrical compo-
nents, you must observe the following safety notes in addition to the above 
warnings:
−Always disconnect the battery. The vehicle must be unlocked when 
this is done, otherwise the alarm will be triggered.
− Do not smoke.
− Never work near naked flames.
− Always have a fire extinguisher on hand.Caution
When changing or topping up service fluids, make absolutely certain that you 
fill the fluids into the correct reservoirs. Failure to observe this point will result 
in serious malfunctions and engine damage!
WARNING (continued)
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Checking and refilling levels223
Safety First
Operating instructions
Practical tips
Te c h n i c a l  D a t a
WARNING
Any work carried out in the engine compartment or on the engine must be 
carried out cautiously.•
When working in the engine compartment, always observe the safety 
warnings ⇒ page 213.Caution
•
Never put radiator anti-freeze or other additives into the windscreen 
washer fluid.
•
Always use approved windscreen cleansing products diluted as per 
instructions. If you use other washer fluids or soap solutions, the tiny holes 
in the fan-shaped nozzles could become blocked.
Changing windscreen wiper blades
If the windscreen wiper blades are in perfect condition, you 
will benefit from an improved visibility. Damaged wiper 
blades should be replaced immediately.
Fig. 163  Windscreen 
wipers in the service posi-
tionFig. 164  Changing the 
front wiper blades
AlteaXL_EN.book  Seite 223  M ontag, 2. Februar 2009  12:26 12