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Old 01-13-2013, 05:24 AM
JNMNL52 JNMNL52 is offline
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Location: Woodbridge, Virginia
Join Date: Aug 2012
Posts: 188
Mein Auto: 2006 X-5 / 2014 X-5
Originally Posted by DirtyDan View Post
I have a 3.0i motor 03 X5. In my experience just 2 weeks ago, I was stuck with a bad alternator. I was able to drive 60 miles with a brand new battery to get a new alternator installed. When voltage is at 11.2 that means it is running off the battery. I would replace the alternator with a Bosch or quality version soon. You don't want to be broken down. Also replace the battery, as every time the battery gets drained the battery has a reduced life.

I had a new battery from Autozone (1 year old), warranty replaced it and I bought the alternator (reman) Bosch from there too. I had it installed by a local mechanic in WV where I was stranded for $140 bucks. It is 2.7 hours labor by the book. Don't let anyone tell you its hard to do. I went ahead and had the belt changed too. I wish I would have had the oil housing gasket too since they were almost to their but I didn't have it in the car.

Good luck!
Thanks for the input. I replaced the original battery 3 weeks ago which was 6 years old. When I jumped the dead battery to start the X5, the engine started but when the booster cables were removed the engine died. I suspected the alternator. Had the X5 towed to my indy. The alternator tested fine by my indy, so just the battery was replaced. Not sure if I had this problem before the battery died but 6 years on the original battery is pretty good. The intermittent nature of this problem is puzzling but I think I have heard enough. I will place an order for a new alternator with Max @ Will close the loop and let all know if this solves the problem after installation.
2014 BMW X-5 xDrive 35i F-15
2006 BMW X-5, 4.4i N62 engine E53

Last edited by JNMNL52; 01-13-2013 at 06:45 AM.
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