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2001 BMW 740i Question: coolant

 

Question

searcypoj, Jacksonville, FL, July 14, 2010, 05:51
 Rookie

I recently had to replace the water hose on my BMW 740i and since then I have had to add coolant daily. Is this normal?

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, July 14, 2010, 09:23
     Master

    No, once the coolant level is good you should never have to add water. However you may have to add water once or twice if there was an air pocket in the cooling system, but no more than that. If it continues, look for a leak. If you don't see a leak, have the engine checked for a blown headgasket.

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    Visitor, July 14, 2010, 10:02

    If there is a blown headgasket this will be pricey to fix....correct?

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    Bret Bodas, July 15, 2010, 10:04
     Master

    Yes, quite expensive. You can get an idea of how much by using the RepairPrice Estimator: http://repairpal.com/estimator

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  • Answer #2

    Visitor, November 16, 2010, 18:14

    You better check the water pump or you vally pan gasket if you have any leak. you will see the leak at back of the engine on the floor or you head gasket is not good

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