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      07-20-2019, 09:44 PM   #8
smass
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Drives: 06 325i - 10 335i
Join Date: Sep 2010
Location: Scottsdale, AZ

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2010 E90 335i  [0.00]
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Quote:
Originally Posted by Serf27 View Post
Ok I tried adding the second brown and red wire to the harness plug on my car and it still didn’t do anything.
I only tried it on the passenger side, do both seats need it done in order for both to work? Or should it still work even if one isn’t connected yet?

Did you add any extra fuses?
I am not sure what you did but if the 2nd thick wires are connected correctly, the lumbar will now work. If you ran new wires to the fuse block, new fuses need to be added. I did add a fuse for switched power needed for passenger side heat but that was all.
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