If you save on the timing gear, you're saving in the wrong place. Wear here affects not only the timing belt, tension rollers and idler rollers, but also the water pump if this has been integrated. A new timing belt with higher tension puts a greater load on the water pump, with failure a foregone conclusion after only a few thousand kilometres.
The efficient solution: RUVILLE's water pump kit for more than 150 vehicle models; also with thermostat for the corresponding VW, Audi, Škoda and Opel types.
All parts necessary for professional repair of the timing gear are contained in one single kit: tension, idler and guide rollers, timing belt and water pump (including the paper seal or O-ring, also including the thermostat where applicable).