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post #1 of 4 (permalink) Old May 6th, 2014, 02:14 PM Thread Starter
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The real problem I would like to hear about from anyone who has had an engine problem, my mini has 40,000 miles and engine blew two days ago, a large ERODED hole in head from firing chamber into cooling duct at number two cylinder. Engine block not damaged at all, head gasket has burned space, head is obviously ruined, and has taken a long time to erode the size hole. Is it due to NIKISIL? What recourse with BMW? Any help will be appreciated.:
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post #2 of 4 (permalink) Old May 6th, 2014, 02:39 PM
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Erode? you mean its due to corrosion?
Has it had the correct dilution of the correct antifreeze in it all the while? as that is an anti corrosion inhibitor too, using plain water plays havoc with engine internals and its castings.
Using the incorrect dilution or wrong type of antifreeze, if thats the reason BMW wont be the slightest bit interested Im afraid, they will put it down to bad servicing.

If its due to a casting/materials fault then they might help you out.
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post #3 of 4 (permalink) Old May 7th, 2014, 01:14 PM Thread Starter
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It has BMW antifreeze, the erosion is in the aluminum head from the combustion chamber out to the cooling duct, it has been going on for a long time from the size of the hole, but when it failed, the coolant hose was blown off and all the coolant dumped immediately. It looks like the head had a casting flaw and I was just wondering if anyone else has had this problem. I have lots of closeup photos, will try to send one.
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post #4 of 4 (permalink) Old May 7th, 2014, 03:33 PM
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If its always had the correct anti freeze in it and its set at the correct dilution then nothing should erode.
How old is the car?
Have you had the car from new?
Never been allowed to overheat?

If not a previous owner could have run it without for a period, or even had some sort of repair done in the past, but if you know its exact history and its always been serviced correctly then it sounds like it could be a casting fault, so BMW should honour a claim if so I would think?
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