507/508 CE reported both cab wipers No w ~~~~~ 507/508 CE reported both cab wipers No water coming out from wiper.  3507/3508 both cars wiper tanks found empty. Retopped both cars wiper tanks. Function checked both A/S & B/S wipers - OK. No water leakage detected at wipers & wiper tanks.     Sarma/Anand 44479