2001 BMW 530 expansion tank

BadMotorWorks
Wed, 16 May 2018 13:55:41 +0000
Maintenance/Repairs

2001 BMW 530, 146,000 miles, Well Maintained, Original owner. Coolant flushed every 4 years as per manual. Pinhole leak near top of expansion tank, can see it bubbling when hot, no overheating problems but need to occasionally top of coolant. should I replace just the expansion tank or should I include the radiator since all is plastic?

3 posts - 2 participants