Page 242 of 317

Checking and refilling levels
240Checking the coolant level and topping up 
The correct coolant level is important for fault-free func-
tioning of the engine cooling system.Before opening the bonnet, read and observe the warnings  ⇒ in 
“Safety instructions on working  in the engine compartment” on 
page 232.
Opening the coolant expansion tank
– Switch off the engine and allow it to cool.
– To prevent scalding, cover the cap on the expansion tank with a 
thick cloth and carefully unscrew the cap  ⇒.
Checking coolant level
– Look into the open coolant expansion tank and read off the  coolant level. – If the level is below the “MIN” mark, top up with coolant.
Topping up coolant
–Only use new
 coolant liquid.
– Do not fill above the “MAX” mark.
Closing the coolant expansion tank
– Screw the cap on again  tightly.
The position of the coolant expansion reservoir is shown in the corresponding 
engine compartment illustration  ⇒page 291.
Make sure that the coolant meets the required specifications  ⇒page 239. 
Do not use a different type of additive if coolant additive G12+ is not avail-
able. In this case use only water and bring the coolant concentration back up 
to the correct level as soon as possible by putting in the specified additive 
⇒ page 239.
Always top up with  new coolant.
Do not fill above the “MAX” mark. Otherwise the excess coolant will be forced 
out of the cooling system when the engine is hot.
The coolant additive G12+ (dyed purple) may be mixed with G12 (dyed red) 
and also with G 11.
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 232.
Fig. 165  In the engine 
compartment: Coolant 
expansion tank cap
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        Page 243 of 317

Checking and refilling levels241
Safety First
Operating Instructions
Practical Tips
Technical Specifications
•When the engine is warm or hot, the cooling system is pressurised! Do 
not unscrew the cap on the expansion tank  when the engine is hot. This is 
a burn injury risk.Caution
•When mixed with other additives the colour of G12 will change to brown. 
If this occurs you should have the coolant changed immediately. Failure to do 
so will result in engine damage!•If a lot of coolant fluid has been lost, wait for the engine to  cool down 
before putting in cold coolant. This avoids damaging the engine. Large 
coolant losses are an indication of leaks in the cooling system. See a special-
ised workshop immediately and have the cooling system checked. Other-
wise, there is a risk of engine damage.
Washer fluid and windscreen wiper bladesTopping up washer fluid 
 Y
The water for cleaning the windscreen should always be 
mixed with washer fluid.The  windscreen washer  and the headlight washers  are supplied with fluid 
from the windscreen washer fluid container in the engine compartment.
The reservoir is located on the right-hand side of the engine compartment.
Plain water is not enough to clean the windscreen and headlights. We recom-
mend that you always add a product to the windscreen washer fluid. 
Approved windscreen cleaning products exist on the market with high deter-
gent and anti-freeze properties, these may be added all-year-round. Please 
follow the dilution instructions on the packaging.
WARNING (continued)
Fig. 166  In the engine 
compartment: Cap of 
windscreen washer fluid 
reservoir.
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        Page 293 of 317
Technical Specifications291
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Technical SpecificationsChecking fluid levelsFrom time to time, the levels of the different  fluids in the 
vehicle must be checked. Never fill with incorrect fluids, 
otherwise serious damage to the engine may be caused.
Coolant expansion tank
Windscreen washer fluid reservoir
Engine oil filler cap
Engine oil dipstick
Brake fluid reservoir
Vehicle battery (underneath the cover)
The checking and refilling of service fluids are carried out on the components 
mentioned above. These operations are described in the  ⇒page 232. Overview
You will find further explanations, instructions and restrictions on the tech-
nical specifications as of 
⇒page 287.
Fig. 208  Diagram for the 
location of the various 
elements
A1A2A3A4A5A6
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