Looks like a 6000 litre tank capacity. The 4X4 chassis provides a modicum of off road capability, but I expect this unit will be used mainly for water supply duties in outlying suburbs of this industrial town of 80,000 people, where hydrant access may be problematical rather than much brush fire situations.
Correct, it is a water tanker with 6000 litre capacity. The fire dept. got a new one last year, the S10 with 10,000 litre capacity. With the development of the Audi factory and the industrial park servicing it, the population of our city experienced a quite big rise of population too. Now it has a population of c. 130,000 people. The Audi provides lot of material support to the city too.
There are only this one station in the city with 4 engines (3 main and 1 backup), 1 ladder, 1 aerial, 1 rescue crane, 2 water tankers, 2 roll-off container carriers, 1 logistic truck. Outside of the city there are lot of small volunteer fire departments at nearby villages for help at need. The fire dept of the Audi is also can be alarmed for major incidents.
Added by Rob Johnson on 02 May 2021.