Front Seat Belt Retractor problems of the 1999 BMW Z3

Intermittently seat belts on the driver's and passenger's sides will not come out of retractor. Sometimes when hitting a bump in the road, seat bets lock up and will not release. Vehicle was serviced at the dealership for this problem. Owner was told that he was not using seat belt correctly.

Ongoing problem with passenger's seat belt retractor failing to release when needed. Unable to use safety belt. Dealer notified, and made repairs on two other occasions. But problem has reoccurred.

Ongoing seat belt problems and had to keep replacing seat belts. When unfastening seat belt, it will not retract back in holder. Had to feed it back into holder.