
Checking and refilling levels
188
Caution•
Other additives may give considerably inferior corrosion protection. The 
resulting corrosion in the cooling system can lead to a loss of coolant, 
causing serious damage to the engine.
•
The coolant additive G 12+ (purple) ca n be mixed with the additive G 12 
(red) or  G 11. Never mix G12 (red colour) with G 11.
Checking 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 180. 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 underneath the “MIN” mark, top up with coolant.
Topping up coolant
–Only use  new coolant.
– Do not fill above the “MAX” mark.
Closing the coolant expansion tank
– Screw the cap on again  tightly.
The position of the coolant expansion re servoir is shown in the corresponding 
engine compartment diagram  ⇒page 242.
Make sure that the coolant meets the required specifications  ⇒page 187. 
Do not use a different type of additive if coolant additive G 12+, 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 187.
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.
Fig. 129  In the engine 
compartment: Coolant 
expansion tank cap
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Checking and refilling levels189
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
The coolant additive G 12+ (dyed purple) may be mixed with G 12 (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 180.
•
When the engine is warm or hot, the cooling system is pressurised! Do 
not unscrew the cap on the expansion t ank when the engine is hot. This is 
a burn injury risk.Caution
•
When mixed with other additives the colour of G 12 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 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 specialised 
workshop immediately and have the c ooling system checked. Otherwise, 
there is a risk of engine damage.
Washer fluid and windscreen wiper bladesTopping up washer fluid 
The water for cleaning the windscreen should always be 
mixed with washer fluid.The  windscreen washer and the headlight washing system  are supplied with 
fluid from the windscreen washer fluid  container in the engine compartment. 
The container holds approx. 2 litres; in vehicles with headlamp washers* it 
holds approx. 4.5 litres.
The reservoir is located on the right-hand side of the engine compartment.
Plain water is not enough to clean th e 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.
Fig. 130  In the engine 
compartment: Cap of 
windscreen washer fluid 
reservoir.
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Index267
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Sunroof blind
Sliding/tilting roof . . . . . . . . . . . . . . . . . . . . . 88
Switch Hazard warning lights . . . . . . . . . . . . . . . . . . 92
Rear window heating . . . . . . . . . . . . . . . . . . . 91
Switches Electric windows  . . . . . . . . . . . . . . . . . . . . . . 84
Sliding/tilting roof . . . . . . . . . . . . . . . . . . . . . 87
Switching off the engine . . . . . . . . . . . . . . . . . . 135TTailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Tank fuel level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
reserve indicator  . . . . . . . . . . . . . . . . . . . . . . 54
tank capacity  . . . . . . . . . . . . . . . . . . . . . . . . . 54
TCS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
TCS (Traction control system) Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 66
The danger of not using the seat belt  . . . . . . . . 18
Tightening torque of wheel bolts  . . . . . . . . . . . 241
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Towing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Towing a trailer  . . . . . . . . . . . . . . . . . . . .  158, 240
Towing bracket . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Towing bracket, fitting  . . . . . . . . . . . . . . . . . . . 175
Towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 Traction control system
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 66
Trailer turn signals Indicator lamps  . . . . . . . . . . . . . . . . . . . . . . . 67
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 94
Trailer weights . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Trips, checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
Turn signals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Warning lamp . . . . . . . . . . . . . . . . . . . . . . 63, 94
Two-way radio  . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Tyre Mobility-System (Tyre repair kit) . . .  205, 211
Tyre pressure  . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Tyre pressures  . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Tyre repair kit . . . . . . . . . . . . . . . . . . . . . .  205, 211
Tyres and wheels Dimensions  . . . . . . . . . . . . . . . . . . . . . . . . . 198
Tyres service life  . . . . . . . . . . . . . . . . . . . . . . . . 197
Tyres tread depth . . . . . . . . . . . . . . . . . . . . . . . . 198
Tyres with directional tread pattern  . . . . . . . . . 196
UUnderbody sealant  . . . . . . . . . . . . . . . . . . . . . . 169
USB* connection . . . . . . . . . . . . . . . . . . . . . . . . 116VVehicle battery . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Vehicle data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Vehicle identification data  . . . . . . . . . . . . . . . . 238 Vehicle identification number  . . . . . . . . . . . . . 238
Vehicle interior heating or cooling system  . . . 123
Vehicle paint
Car care products  . . . . . . . . . . . . . . . . . . . . 163
Vehicle tools Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Vehicle wallet storage . . . . . . . . . . . . . . . . . . . . 110
vent wings*  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Ventilation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Ventilation slits  . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Volumetric sensor* Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . 81
WWarning lamp  . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Warning triangle  . . . . . . . . . . . . . . . . . . . . . . . . 116
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Washing by hand . . . . . . . . . . . . . . . . . . . . . . . . 164
Washing the vehicle  . . . . . . . . . . . . . . . . . . . . . 164
Washing with high pressure cleaners  . . . . . . . 165
Water in the windscreen washer tank  . . . . . . . 189
Wear indicators  . . . . . . . . . . . . . . . . . . . . . . . . . 198
Wheel bolts  . . . . . . . . . . . . . . . . . . . . . . .  208, 241Torque  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Wheel change  . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Wheel trims  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Wheels  . . . . . . . . . . . . . . . . . . . . . . . . . . .  196, 240
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