I have a grounding issue. Occasionally when I turn on my blinker, the entire instrument cluster loses power and the needles fall back to zero, only to catch themselves and reset. It's also causing a check engine light for the O2 sensors losing momentary power.
I have replaced the negative battery terminal and it has helped tremendously. It's gone from almost every time I use the blinker to maybe once or twice per car ride.
I want to check the other grounding locations to make sure they are tight and getting a good connection. I have googled and looked all over this forum, but haven't been able to find solid info about where they are. I've found wiring diagrams, but not the actual grounding locations on the chassis.
Could anyone shed some light on this?
Thanks
I believe it's on the passenger side near the bottom of the engine block. You can see it when you look down through the engine bay. It's a braided chord and It'll go from right to left.
As Welsh was saying, the engine grounding cable is on the passenger side engine mount. It runs under the mount and is attached to the bottom side of the passenger frame horn with a 13mm nut.
There are plenty of other grounds located throughout the car.
Would anyone know where I could find more info on this?
Here: (this address is for my M roadster, but you can then find the one for your car): http://wedophones.com/Manuals/BMW/19...g%20Manual.pdf
Thank you. Great link, plus the subdirectories are particularly useful.
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