One problem related to water pump has been reported for the 2003 Mini Cooper. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mini Cooper based on all problems reported for the 2003 Cooper.
Windshield cracked from the bottom where it meets the hood of the car. Driver's side window does not go down. I only hear a clicking sound. Water pump, oil pan and valve cover gaskets failed prematurely. I can't shift the car into first gear without multiple attempts.