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  #1  
Old 07-23-2018, 07:54 PM
macsooner macsooner is offline
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Location: Arlington, Texas
 
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Mein Auto: z4
Multiple yellow warning light, EPS, Auto Transmission, DSC

2007 z4 3.0i with 145K
last month while driving, there a shift noise the car go to slow mode. with the following Yellow warning lights. Electric power steering, automatic transmission, DSC, and brake. So I pulll in the side and restart and everything going away. Car drive normally. It occasionally has Service Engine Soon warning light. It begins to happen more often last 5 days almost once daily.
Check the battery, cold voltage is 12.49V
This morning , the z4 crank but could not start. Once it starts, all the warning lights are on ( Electric power steering, automatic transmission, DSC, brake, and Service Engine soon, the car is running slow. and the power steering is very stiff. hard to turn.

Has been research to see any clue. after check all the fuses and power distribution control module. Fuse look ok . do not know about Power distribution control module. Restart the car and very thing run normally. '
Went to auto zone to scan:
It took a while but the follow error code show up:

P0355 Camshaft Postion Sensor? A?Circ Malfunction
P0700 Transmission Control System (MIL Request)
P1727

Read through few forums. it suggest to change the power distribution Control Module.
Any suggestions
Thanks

Last edited by macsooner; 07-23-2018 at 09:01 PM.
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  #2  
Old 07-24-2018, 05:33 AM
RJ237 RJ237 is offline
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Location: Georgia
 
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Mein Auto: 2004 Z4 3.0i
Autozone will run a load test on the battery. If you have a weak cell the voltage could drop below 11 when starting, and the electronic modules get confused.
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  #3  
Old 07-24-2018, 04:41 PM
macsooner macsooner is offline
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Location: Arlington, Texas
 
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Mein Auto: z4
any recommendations on the battery
Thanks
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  #4  
Old 07-26-2018, 01:04 AM
Vladi Vladi is offline
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Location: Switzerland
 
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Mein Auto: Z4 M (2007)
Sounds like a battery problem to me, too.
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  #5  
Old 07-26-2018, 11:35 PM
macsooner macsooner is offline
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Location: Arlington, Texas
 
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Mein Auto: z4
battery was borderline after run load test.
New battery install same problem
have to look to other sources
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  #6  
Old 07-27-2018, 12:54 AM
Vladi Vladi is offline
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Location: Switzerland
 
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Mein Auto: Z4 M (2007)
Scan it with the INPA, then.
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  #7  
Old 07-27-2018, 09:37 PM
macsooner macsooner is offline
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Location: Arlington, Texas
 
Join Date: Oct 2015
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Mein Auto: z4
Get part from local BMW.
Change Crankshaft position sensor
Ran Great now

Thanks very much for the help.

Last edited by macsooner; 07-28-2018 at 04:48 AM.
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