[Double Nickel]

Have anybody ever had to do this on any BIMMER? $25 I might get one just cause.

[Surly73]

Which one is that? I was doing some other work with all the bottom covers off of mine and there's some blue-ish corrosion in my transmission ground strap so I'm thinking of putting that on my list. Early on in the investigation phase though.

[Double Nickel]

Originally Posted by Surly73

Which one is that? I was doing some other work with all the bottom covers off of mine and there's some blue-ish corrosion in my transmission ground strap so I'm thinking of putting that on my list. Early on in the investigation phase though.

Idk, but just looking at description it says tranny or engine

[StradaRedlands]

That looks like the interference strap grounding the valve cover/coils.

[M_Bimmer]

The original BMW part as shown on the left side of the OP's illustration, is part number 12427581396, and has been superseded by 12428643430 on the following vehicles:

• 5' F07 GT   (04/2011 — 06/2013)
• 5' F07 GT LCI   (10/2012 — 02/2017)
• 5' F10   (01/2009 — 06/2013)
• 5' F10 LCI   (08/2012 — 10/2016)
• 5' F11   (02/2009 — 06/2013)
• 5' F11 LCI   (08/2012 — 02/2017)
• 6' F06 Gran Coupé   (05/2011 — 03/2015)
• 6' F06 Gran Coupé LCI   (05/2014 — 09/2018)
• 6' F12   (01/2010 — 02/2015)
• 6' F12 LCI   (05/2014 — 05/2018)
• 6' F13   (04/2010 — 02/2015)
• 6' F13 LCI   (05/2014 — 10/2017)
• 7' F01   (06/2008 — 06/2012)
• 7' F01 LCI   (05/2011 — 05/2015)
• 7' F02   (09/2007 — 06/2012)
• 7' F02 LCI   (05/2011 — 05/2015)

....if you are going to replace with OE, buy the latest version.

[Double Nickel]

Originally Posted by M_Bimmer

The original BMW part as shown on the left side of the OP's illustration, is part number 12427581396, and has been superseded by 12428643430 on the following vehicles:


5' F07 GT   (04/2011 — 06/2013)
5' F07 GT LCI   (10/2012 — 02/2017)
5' F10   (01/2009 — 06/2013)
5' F10 LCI   (08/2012 — 10/2016)
5' F11   (02/2009 — 06/2013)
5' F11 LCI   (08/2012 — 02/2017)
6' F06 Gran Coupé   (05/2011 — 03/2015)
6' F06 Gran Coupé LCI   (05/2014 — 09/2018)
6' F12   (01/2010 — 02/2015)
6' F12 LCI   (05/2014 — 05/2018)
6' F13   (04/2010 — 02/2015)
6' F13 LCI   (05/2014 — 10/2017)
7' F01   (06/2008 — 06/2012)
7' F01 LCI   (05/2011 — 05/2015)
7' F02   (09/2007 — 06/2012)
7' F02 LCI   (05/2011 — 05/2015)


....if you are going to replace with OE, buy the latest version.

Ok, thanks man mine is a '15 hope this the case I personally haven't had the bottom pan off every since I had the tranny serviced. But I'll check it out later in the spring time.

[M_Bimmer]

Originally Posted by Double Nickel

Ok, thanks man mine is a '15 hope this the case I personally haven't had the bottom pan off every since I had the tranny serviced. But I'll check it out later in the spring time.

When you start to get to 0 or larger (00, 000, 000) gauge wires, even if they are multi-conductor, they become very "stiff".

I don't know how "flexible" the aftermarket ground strap shown in your original figure, but I would NOT recommend using that between something that vibrates (engine or transmission) and one that does not (chassis). There is the potential of transmitting more than just electrons (or holes) through the "stiff" wire.

I'd trust that BMW uses a very flexible ground strap for a reason on their vehicles at certain locations. And when signs of corrosion or "wear", replace with OE ($40).

IMHO.

[tringuyen7757]

I have it on my car and briefly helped them test it on my car. Its a thick gauge wire but its still flexible enough below the car. I recommend it if you want a piece of mind on something thats always exposed to the elements.

[tringuyen7757]

Originally Posted by Surly73

Which one is that? I was doing some other work with all the bottom covers off of mine and there's some blue-ish corrosion in my transmission ground strap so I'm thinking of putting that on my list. Early on in the investigation phase though.

It’s exactly for this ground strap. goes from the chassis to the bottom of the transmission