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-   -   Multiple yellow warning light, EPS, Auto Transmission, DSC (

macsooner 07-23-2018 07:54 PM

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)

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

RJ237 07-24-2018 05:33 AM

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.

macsooner 07-24-2018 04:41 PM

any recommendations on the battery

Vladi 07-26-2018 01:04 AM

Sounds like a battery problem to me, too.

macsooner 07-26-2018 11:35 PM

battery was borderline after run load test.
New battery install same problem
have to look to other sources

Vladi 07-27-2018 12:54 AM

Scan it with the INPA, then.

macsooner 07-27-2018 09:37 PM

Get part from local BMW.
Change Crankshaft position sensor
Ran Great now

Thanks very much for the help.

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