3624 - A4 DOOR ROLLER DELAM. ~~~~~ 3624 - A4 DOOR ROLLER DELAM. Heavy Vibration when door open/close. No FC registered.  3624delaminated A4 DOOR ROLLER replaced. Clean door rail & guide rail. Checked weather strip - OK.    Door gap 63.9mm. Door cyclic test, open/close timing - OK. Door indication - OK. Sarma/Sugu/Kamar/Anand/Lee PT 45175