Reply With QuoteYup. Undo the two screws on the plastic plate above the tank, pry out the tank, change the o-rings, lubricate them with antifreeze, push the tank back in, and reinstall the plastic plate.
expantion tank leaks
My expantion tank leaks!! It is not cracked. Is there a way I can replace the seals. Has anyone done this to there radiator before.
Major Contributor
Yup. Undo the two screws on the plastic plate above the tank, pry out the tank, change the o-rings, lubricate them with antifreeze, push the tank back in, and reinstall the plastic plate.
1997 535i V8
5spd, OBC, A/C, cruise, BMW phone, factory M-Tech wheel & suspension, 18" Alpinas
first try replacing the radiator cap. i went through 8 months with radiator problems. replaced hoses, expantion tank was still leaking, even bought a whole new radiator. but then i found a recall on the caps so i replaced it and no problems since. Just try that first.
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