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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Sep-30-2009, 11:48:09 AM   #11
Razkal
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Quote:
Originally Posted by cjrivera View Post
Very strange. My car just started with the same problem today. Any chance of taking a picture of the wire that was cut?
hi there,

mine is fixed now. The easiest way to see if it is a wire is to tilt the seat up as if someone was going into the back and look underneath. There are 2 motors under your seat. Look at the wiring harnesses and see if any wires are sticking out. On mine, the black wire going to the front/back motor was cut somehow. Once I added some more wire, reconnected it - it worked fine.

Best of luck, I know its annoying :S
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Old Sun, Oct-11-2009, 05:10:36 PM   #12
ginta99
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This post helped me out...thought I was going to have to dish out $105! THANK YOU.

BTW, seems very odd that almost the exact same thing is happening on multiple cars...I wonder what is cutting the wire?
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Old Wed, Mar-14-2012, 08:13:33 PM   #13
cducati
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Default Re: Power seat does not move foward or back

OLD thread resurrected!

Just wanted to say how great this forum is.
This helped me our years later!

I think that my kids are jamming their feet under the seat or pushing the seat back down after getting out with book bags or other stuff in the back.
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Old Tue, Nov-04-2014, 10:58:33 PM   #14
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Default Re: Power seat does not move foward or back

-

-

Here is a reference to the problem.

The cause is the raising of the seat to let a person into the back.

The design of the wire to this motor is relaxed when the seat is down. When raised up it does 2 bad things.
It tightens the wire as mine did.....basically rips the wire in half at the connection.

The other is where the wire ends up with the seat pulled up. It pressed up against a sharp bracket on one of the upper seat motors. You can easily see it.

On mine....the back plug sits on top of a white plug.....they are sitting on the bracket that's sharp.

The only fix really is to lengthen all the wires. We only seem to be having trouble with the black wire though.

I cut the zip tie on is motor to give me another 1/4 inch of length for al, the wires. I'm only going to lengthen the black wire

I took the plug apart and forced the pin out of the socket pretty hard. When putting back the pin I will pull out the tabs again allowing the pin to lock back into the plug.
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Discussing Power seat does not move foward or back in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)