Recently, after a long time, it was again at a Volvo workshop for the 240 TKM inspection. The timing belt should be changed. What did not happen was the simultaneous replacement of the WaPu, as this should not have been necessary. To this end, I received later from another car.-Master the indication that an age-weak WaPu carries the risk of destroying the timing belt in case of a defect, which in turn could cause an engine damage. I exchange the WaPu with the corresponding follow-up costs (approx. 450 €). Is this risk really given, so the proposal should be followed?