One problem related to water pump has been reported for the 2003 Volkswagen Jetta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Volkswagen Jetta based on all problems reported for the 2003 Jetta.
Transmission strained to shift out of first gear. Water pump went out cause car to run hot. . Water pump was replaced but blower head gasket. . . . Airbag light comes on and off.