—Only top up the engine coolant if there is coolant residue in the engine coolant expansion tank. Failure to comply
could damage the engine. If you cannot see any coolant in the coolant expansion tank, do not drive on. Seek
professional assistance.
—Refill only with new coolant that complies with the Volkswagen Commercial Vehicles specification (→ Coolant).
—If there is still a remaining quantity of coolant in the coolant expansion tank, refill coolant until the level remains
stable.
—The coolant level must be between the markings on the coolant expansion tank→ Fig. 1. Do not fill above the top
edge of the marked area →
.
—Close the cap tightly.
—If in an emergency you do not have access to coolant with the required specification (→ Coolant), do not use any
other coolant additive! Instead, initially refill with distilled water → only. Then add the correct proportion of the
specified coolant additive as soon as possible (→ Coolant).
WARNING
Hot steam and hot coolant can cause serious burns.
● Never open the bonnet if you can see or hear steam or coolant escaping from the engine compartment. Always
wait until you can no longer see or hear escaping steam or coolant.
● Always allow the engine to cool down completely before carefully opening the bonnet. Hot components can burn
the skin.
● The following points should be noted before opening the bonnet once it has cooled down:
● Switch on the electronic parking brake and move the gear lever to the neutral position or the selector lever to
the P position.
● Switch off the ignition.
● Always keep children away from the engine compartment and never leave unsupervised.
● The cooling system is under pressure when the engine is hot. Never open the cap of the coolant expansion tank
when the engine is hot. Coolant may spray out and cause serious burns and other injuries.
● Turn the cap slowly and very carefully anti-clockwise while exerting gentle downward pressure on the cap.
● Always protect the face, hands and arms from hot coolant or steam with a large, thick cloth.
● When refilling, do not spill any service fluids on engine components or on the exhaust system. The spilt service
fluids can start a fire. In certain circumstances, the ethylene glycol in the engine can catch fire.
NOTICE
● Refill only with distilled water. All other types of water can cause corrosion in the engine due to the chemical
components contained therein. This can also lead to engine failure. If any other type of water is refilled, the fluid
in the cooling system should be completely replaced immediately by a qualified workshop.
● Do not fill coolant above the top of the marked area→ Fig. 1. Otherwise the excess coolant will be pressed out of
the cooling system when the engine is hot and could cause damage.
● If a large amount of coolant has been lost, do not refill the coolant until the engine hascooled completely.
Significant coolant loss is an indication of leaks in the cooling system. The cooling system should be checked by a
qualified workshop as soon as possible. Failure to do so can result in engine damage.
● Do not refill coolant if there is no more coolant in the coolant expansion tank. Air could have entered the cooling
system. Do not drive on! Seek expert assistance. Failure to do so can result in engine damage.
● When refilling service fluids, please ensure that your pour the correct service fluids into the correct openings. The
use of incorrect service fluids could result in serious malfunctions and engine damage.
Brake fluid
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