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Old 01-08-2013, 02:39 AM   #4
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Join Date: Jan 2006
Location: Cyprus
Posts: 6,564
My Ride: ESS TS2 320ci
Originally Posted by E46Mango View Post
Have you ever considered the voltage regulator..........
Well yes, the car has the Valeo alternator which IIRC does not have a replaceable VR so I want to be sure before replacing parts.

Originally Posted by Megalocnus View Post
If the problem is intermittent, I'd suspect a ground problem, but it can be the alternator, or even an issue with the belt or the tensioner. Is there noise when this occurs, heavy steering, anything else besides the battery light?
The OBC test#9 readings look normal to me, but I suppose you didn't have a chance to check the voltage while the red light was ON.
Belt/tensioner checked ok, no noise or heavy steering. Just the battery light and -what I guess related to voltage- the random DSC/ABS flashing. I will check the cabling behind the alternator again to see. I showed to the owner how to get to the menu so that when it happens again he will tell me the readings.

Last edited by paraklas; 01-08-2013 at 02:43 AM.
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