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  1. #1
    Join Date
    Aug 2018
    Location
    Panama
    Posts
    4
    My Cars
    2008 e70 30d

    Low/foamy coolant on 2008 e70 30d

    Hello guys, I'm new over here but not new to BMWs. So I started receiving low coolant message on my 08 X5 and have been topping it off with coolant and water. First time this happened I used good quality coolant to top it off but when I received the low coolant light again in two days I decided to top it off with cheap coolant/regular tap water until I fixed the issue.

    Now while topping off the expansion tank I noticed the coolant was slightly foamy. The foam was white. At first I suspected a blown head gasket but the oil is fine and I see no white smoke coming off the exhaust.

    There is no noticeable puddle of water/coolant anywhere I park but the leak is considerable since I have to put about 3 quarts of water every two days. The car runs fine and I haven't had the overheating light ever.

  2. #2
    Join Date
    Aug 2018
    Location
    Panama
    Posts
    4
    My Cars
    2008 e70 30d
    turns out to be the hose that goes from the water pump to the radiator that's leaky.

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