11-07-2014, 08:25 PM | #1 |
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Help PLEASE! I'm driving and having a problem!
Fellow owners, anyone connected right now that could assist?
I'm on the road, suddenly my the engine fan started to work and has not stopped since (it's been like that for more than 40 minutes) I have no error nor warnings lights . I've just parked and the fan's still on, opened the hood, the engine is actually cold... What happened? I'm inside of a shopping mall parking lot, turned the engine off, but I'm scared to start it again and go home Any pointers my friends? |
11-07-2014, 08:48 PM | #4 |
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Well, I left the car turned off for like an hour, turned on again and the fan didnt started, but I'm concerned.... I don't know if once the engine gets warm it'll turn on forever again
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11-07-2014, 10:12 PM | #9 |
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Drives: 2015 M235i xDrive
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11-07-2014, 10:14 PM | #10 | |
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11-07-2014, 11:00 PM | #11 |
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Thing is my friends, that the fan stayed ON for like 45 minutes while I was driving the car and not in heavy traffic... I was doing an average of 30-40 mph and correct me if I'm wrong but the fan should not stay on for that long on normal driving on open road at night and in cold weather.... Last week I drove in very heavy traffic at mid day and the fan worked normal, on and off like it should
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11-08-2014, 05:28 AM | #12 |
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1) did you use the iDrive car info menus to see if everything registers O.K.
2) on other vehicles a couple of cycles of ON&OFF of the ignition switch can reset errors so MAYBE it is possible the issue will clear on it's own. 3) there is no way paper or plastic bag got lodged over your front grill while driving ? Last edited by overcoil; 11-08-2014 at 08:33 AM.. |
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11-08-2014, 10:28 AM | #13 | |
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11-08-2014, 11:06 AM | #14 |
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YOU GOT INTO SOFT LIMP MODE...
It has happened to me three times now... OP Does not mention if car was on or off but I suppose it was ON. Apparently all F series M sport cars have this problem, for no apparent reason and with normal water and oil temps suddenly the fans will blast full on, you will feel the vibration of that and also hear them, its very loud, if you have a way to check temps you will see that they will start to lower agressively. It is some kind of fault related to a sensor or DME programming but I have not heard of anyone that has had it fixed for good. And also there will be nothing in you dash to tell you that something is wrong (no cel or faults) but the car performance will be choppy with inconsistent power delivery. You should shut the engine off wait 10 - 30 secs and start it back up again... all should be normal. |
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11-08-2014, 11:09 AM | #15 | |
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11-08-2014, 01:03 PM | #16 | |
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Thanks a lot Jerich0 for sharing this with me, more than helpful information! |
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11-08-2014, 01:08 PM | #17 |
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11-08-2014, 01:14 PM | #18 | |
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I understand, its a strange problem if you check with the 3 series F30 forums you will see many people describing the same problems as you and I did. Did the dealer tell you anything about a DME (ecu control unit) update for your car? they only cleaned the sensor? Remember next time it happens just cycle the engine to get rid of the fan noise. |
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11-08-2014, 02:43 PM | #19 | |
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