E46Fanatics - View Single Post - E46 COOLING SYSTEM GUIDE - overheating/coolant/etc
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Old 04-06-2012, 12:21 PM   #15
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Join Date: Dec 2007
Location: Overland Park, KS
Posts: 371
My Ride: '03 330i ZHP Sedan
Originally Posted by E46Mango View Post

Great story. How many miles on the rebuilt head? Glad to see its doing well to this day. And yes, age will also kill plastics. A lot of people come on here saying their E46 has 50k miles and thus needs no cooling maintenance. Nothing could be further from the truth.
So far around 3k

I was really paranoid so I had a compression and leakdown test and compression was solid across the board around 180-190 cold and leakdown zero on all cylinders except two that were at 1%. Solid as a rock now. The PO is an enthusiast and he had BMW certified techs doing the repair, so it was done right thankfully. They even went so far as to time-sert the block in case the aluminum threads had weakened from the heat and addressed vanos as well while in there.

Cooling system also looks to have been done right. I was given the order sheet from Pelican with every part replaced and it seems to be doing its job well.

It's not a death sentence, but it's definitely an expensive repair. I just went through and looked at his cooling system overhaul parts bill and it was 900, so you've clearly put together a very cost effective means of addressing it.
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