One problem related to ignition module has been reported for the 1998 Volkswagen Jetta. The most recently reported issues are listed below.
1998 Volkswagen Jetta vr6 has had second ignition coilpack fail, creating a dangerous driving condition and rendering the car inoperable. Car currently has 58,000 on Jan. 13th. , 2003 and required ignition coilpack replacement. Ignition coilpack was also replaced on 06/26/2000 when vehicle had 34,119 miles. Volkswagen service manager agrees that this failed prematurely, but customer complaint center refuses to acknowledge a problem exists. This problem caused vehicle to stall and sputter in highway traffic, thus causing a dangerous situation for my family and surrounding vehicles.