Frost and windscreen washer repairs under warranty. With the latest fan jet washer spray technology it is vital to insure adequate protection against frost. The consequence of using windscreen washers when the jets or pipes are frozen is that the pressure generated by the pump can force the pipejoints apart. This can lead to damage to headlining and trims, it can also damage the vehicles electrics leading to problems with alarms and central locking. Volkswagen recommend the use of their own additive G 052 164 A2. This is available from all Volkswagen retailers parts departments. To provide the correct protection it is recommended that in winter conditions water to additive mix should be a minimum of 2:1 or stronger in extreme conditions. Please refer to instructions for use issued with your chosen additive. It is important to note that the terms of the Volkswagen Warranty will not allow for a repair, where problems have arisen as a result of inadequate protection.