1997 BMW 740iL Q&A
1997 BMW 740iL Question: water pump leak
just arrived and park at my drive way and I noticed that coolant dripping under the engine. I open the hood and saw coolant coming out the water pump behind the pulley. Please let me know where to start before removing the water pump? Hoping that the problem is the gasket only. Also please let me know why the gasket leaked? Is there any other parts need to check? Thank you in advance. Jr1997. - jr1997
10-1 it is the internal shaft seal in the water pump. Behind the pulley, there will be a hole drilled up from the bottom, (weep hole) and most likely this is where the coolant is coming from. - Wilsonite
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Leaks are known to develop in the cooling system. It is common to see more than one part recommended for repair/replacement due to overlapping labor and the use of many plastic parts in the system.
my car looses coolant when I drive it. I can drive 3 miles and I need to add coolant. What could be the problem?