Coolant tank
 

Hy all,

I own a 3.0i X5 , a few weeks ago the coolant tank cracked. The question is if this is a common failure.
Has anyone else had this problem ?
I also want to ask if its normal when the engine is cold and you open the coolant tank it "ssssst" like a bottle of beer.

Greetings from Belgium

Thanks

Do some reading in this thread:
http://www.xoutpost.com/search.php?searchid=1364350

Was easily found using the Search Tab, upper right of page, 3rd tab
from right...

Very common problem and easily replaceable in a DIY.
Welcome to the Board.
Greetings from the Mtns of far western North Carolina.
BR,mD

It is a very common problem. I changed mine a couple of months ago. If you have some basic tools you can do it in about 1.5-2 hours.

Yep, happened to me as well.

me aswell, I wouldn't fix it, just replace it. It will be a headache if you fix it. Just my 02.

Ditto, mine was replaced at around 40K miles before I bought it.

has anyone had to replace the coolant tank more than once???

Yeah, the plastic parts in the cooling system are prone to failure after a few years of use... the plastic gets more brittle with all the constant heating/cooling. The coolant expansion tank is one of the more common fail points in all BMW's unfortunately, but it does its job until then.