0/5,

E9X BLOWER MOTOR WIRING DIY FIX

Summary

A step by step on how to fix your blower motor wiring to prevent a fire in your glove box.

Part numbers:
  • Blower Motor Resistor: 64119265892 You can find this on Amazon or EBay($60) for much cheaper than the dealer($120). Up to you how much you want to spend.
  • Connector: 61136925196 You can get this online or at the dealer parts department. Cost me $1.50 at dealer
  • Double Leaf Spring contacts: 61138377730 You can get this online or at the dealer parts department. Also cost me $1.50 each at dealer. I bought 5 just in case I messed one or two up when trying to crimp them on. This is for the small wire
  • Double Leaf Spring contacts: 61138377732 You can get this online or at the dealer parts department. Also cost me $1.50 each at dealer. I bought 5 just in case I messed one or two up when trying to crimp them on. This is for the bigger gage wires.
  • Wire: I went to AutoZone and bought some thicker gage multi strand copper wiring. I think a 5ft roll was like $5.
  • Electrical butt connectors or you can just solder the splice together. Soldering would be the most effective for not getting loose and would generate less heat in the future.

Tools:
  • Torx T20 and T15 I believe. Cant remember exactly.
  • Good set of wire cutters, wire stripper and connector crimpers. Usually an all in one tool.
  • Some heat shrink to cover the splice.
  • Soldering gun and solder.
Tags:
****DISCLAIMER: DO THIS AT YOUR OWN RISK. I AM MERELY SHOWING MY OWN STEPS I TOOK TO REPAIR MY CAR WITH THE HELP OF SOME PICTURES I FOUND OF SIMILAR SITUATIONS ONLINE. I DO NOT TAKE RESPONSIBILITY FOR ANYTHING YOU DO TO YOUR OWN CAR.****

With the recent recall of the blower motor wiring and BMW not doing shit about it, I thought I would share my solution to this problem. I fixed mine myself a few months ago before they started sending out this BS letter saying there is no fix. So instead of a fire extinguisher and a prayer here is my solution to the issue. :: Credits to e90Post member simon for his DIY pictures. I didn't take any when I repaired mine.::

  1. Disconnect your battery in the trunk.
  2. Remove the cover under the glove box. 2 Torx screws.
  3. Look under the glove box and you will see the blower motor resistor and the connector going to it. Unplug it and inspect the connector and the wires. If it shows bare wires, insulation damage, melting of plastic connector then you have a problem. You just prevented your car from going up in flames. Go ahead and LEAVE IT DISCONNECTED until you get parts to fix it. (Wrap electrical tape around the bare wires if any, to prevent it from shorting and sparking when you reconnect the battery later.)
  4. Remove the blower motor resistor(2 Torx screws) and inspect it too. If it's charred or showing signs of over heating you will need to replace that too.
  5. Now you can reconnect your battery until you get the parts to fix it.
  6. When you have all your parts and tools gathered. Go ahead and disconnect your battery again.
  7. ****THIS IS VERY IMPORTANT**** Make a note of what wire went where on the old connector so you know where they go on the new one. If you fuck this up you can ruin your blower motor. Cut the plug off the wires. Inspect how far back the damage on the wiring is. I cut back about 8 inches of wire just to be safe.
  8. Crimp your new contacts on to your new wires. Push them into place on the new connector.
  9. Slide a piece of heat shrink over each of the new wires. Splice in the new wires and connect them however you desire either with a butt connector or solder. ***DO NOT JUST TWIST THEM TOGETHER AND WRAP ELECTRICAL TAPE***
  10. Go ahead and heat up the heat shrink over the new connections.
  11. Install the new blower motor resistor.
  12. Connect your battery.
  13. On the HVAC controls, turn on the blower motor.
  14. ***DO NOT PUSH IN THE CONNECTOR ALL THE WAY YET***Slowly push in the connector to the resistor and make sure that it makes the blower come on and that its actually blowing air out the vents. If its working fine go ahead and push it all the way in.
  15. Put your under glove box tray back on.
IF ANYONE HAS BETTER TIPS OR SEES SOMETHING I FORGOT, PLEASE FEEL FREE TO TAG ME SO I CAN UPDATE THE ORIGINAL POST.

Photos for reference:
[​IMG] [​IMG] [​IMG] [​IMG] [​IMG] [​IMG] [​IMG]