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545i Coolant leaking.

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Old 03-31-2011, 06:58 PM
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I drove down to the street, park a while and when i come back I saw some liquid came out from my car, I thought it was something else. then I realized that the smoke came from the head of the car.
I saw this.


By ImageShack.us

The computer said the coolant is low
But my point is, should I take it to the dealer and change the new tank or Cover the hole by something???
Old 03-31-2011, 07:23 PM
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is that a hole? looks like you need a new coolant expansion tank
Old 03-31-2011, 07:39 PM
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Originally Posted by turboawd
is that a hole? looks like you need a new coolant expansion tank
Its not a big hole, just a crack
Old 03-31-2011, 08:35 PM
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From what I hear, replacing this tank is a breeze and, commonly done There's quite a few threads regarding this issue. There may even be a DIY for it too. Good luck
Old 03-31-2011, 09:02 PM
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www.realoem.com
for part numbers and retail prices
Old 03-31-2011, 09:09 PM
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Easy DIY fix. I replaced mine for around $150 for the resevoir tank and BMW coolant. Dealer said it would cost anywhere between $300-$400.
Old 04-01-2011, 03:36 AM
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I got 18 or 20 percent discount in the dealer cause my brother work in there.
Old 04-01-2011, 04:40 AM
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+1 on replacing the tank. Covering or patching the hole will not work/last as the tank is under pressure.
Old 04-02-2011, 08:45 AM
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Thanks guys. I came to the dealer bought the tank and already put it in. Very easy to install.
But I don't know which coolant I can use for my car, so I bought 2 galons coolant at autozone Im not sure is that okay?
Old 04-02-2011, 09:31 AM
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I just put mine in it was like $75 OEM


545i Coolant leaking.-overflow-tank.jpg

Warning!

If the plastic on your tank is that brittle make sure to replace this part too! I very surprised it did not break when you touched it. The plastic on this tube is that brittle and if it is not broken yet it will break when you attempt to replace it. Mine was not leaking but broke into three pieces when I looked at it wrong.

545i Coolant leaking.-capture.jpg


Its the upper hose on the tank that leads to the radiator


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