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      11-15-2010, 02:28 PM   #2
Chriztofor
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Drives: '06 325i and '13 X5
Join Date: Feb 2010
Location: Chicago Burbs

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Quote:
Originally Posted by empirevalley View Post
Yesterday, I started my 335ix E92 and got a coolant level warning icon on the dashboard. I checked the iDrive under Vehicle Settings and got the same information. I shut the car down, waited an hour, checked the owner’s manual, and then removed the radiator cap. I found that the coolant reservoir was empty – no coolant. There was no coolant leakage that I could see, and no coolant on the garage floor.

I called the dealer today, spoke with a Service Advisor, and explained the problem. He told me that this was not unusual, that the coolant needs “topping up” every so often. He told me not to use Prestone, as BMW has its own “blue” in color coolant. He told me to come by the dealership and they would top off the reservoir at no charge. I asked him if it was safe to drive and he said there was no problem.

I drove to the dealership, talked with a different Service Advisor, explained the problem, and she turned behind her desk to pick up a gallon container of BMW coolant. We waited for 20 minutes for the car to cool down, and she filled the coolant reservoir. She repeated what the previous SA told me, that this was not at all unusual. I started the car and the low coolant warning alarm did not reappear.
Straight coolant not 50/50 mix?
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If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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