The vehicle must not be moved if large quantities of coolant have been lost. Failure to observe this can lead to engine damage.
Work on the cooling system should always be carried out by a correspondingly qualified workshop. Volkswagen Commercial Vehicles recommends a Volkswagen Commercial Vehicles dealership for this.
The cooling system can be topped up in an emergency if it is not possible to visit a correspondingly qualified workshop.
This description of manual filling applies only to the engine codes DMZA, DNAA, DNAB and DNAC.
You can find information abut the engine code here Type plate.
Requirements when filling the cooling system
The vehicle must be stopped on a firm and level surface.
The engine must have cooled down Coolant.
The cooling system is not damaged (water loss).
A tool that is not included in the vehicle toolkit.
A sufficient quantity of coolant is available, in an emergency water filtered through a clean cloth.
Emergency top-up of the cooling system
The actions should only be carried out in the specified order:
Open the bonnet In the engine compartment
Open the coolant expansion tank.
Fill the cooling system up to the upper seam on the coolant expansion tank until the coolant level remains constant Coolant.
Wait around 5 minutes and add more coolant if necessary.
Switch on the ignition.
The automatic coolant bleeding process begins . This process takes around 5 minutes.
When automatic coolant bleeding is complete, refill the coolant up to the seam on the coolant expansion tank Coolant.
Start the engine and switch off the air conditioning system Heating, ventilation and cooling.
Drive the vehicle at an engine speed above 2,000 rpm for around 30 minutes to get the engine to operating temperature
Switch off the vehicle and allow it to cool down. Once it has done so, adjust the coolant level to around 3 cm above the upper marking. Set the air conditioning system to your preferred temperature.
Have the engine cooling system checked, repaired and filled with engine coolant of the correct specification by a correspondingly qualified workshop immediately. Volkswagen Commercial Vehicles recommends a Volkswagen Commercial Vehicles dealership for this.