Find Out How To Substitute A Seat Occupancy Sensor

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This venture has been a long time coming for me. Virtually a 12 months in the past I left my home windows down during a fairly impressive thunderstorm (accidentally pressed the unlock button on my key in my pocket whereas I used to be strolling away from the automotive and both windows and the sunroof opened), and due to some quite drastic measures on my part to dry out the automobile the only lasting harm was that I now had a seatbelt and airbag warning mild on my dashboard. I was pretty rapidly able to determine that these lights had been being attributable to a faulty passenger occupancy sensor. Sadly, BMW doesn't promote just the sensor, but moderately all the bottom seat cushion for a cool $1200. Effectively I did not want to do that. So I managed to make it by means of many a month with those annoying warning lights until sooner or later I happened upon a list on a salvage automotive elements site that was selling a standalone seat sensor! I snatched up the half after which spent an entire day switching them out. In researching tips on how to get into the seats I used to be unable to seek out much of anything helpful on this forum so I figured I should write up this DIY to help others out. 1. Remove the seat (duh). You may use the T50 bit to remove all four screws holding the seat down. As soon as unfastened, go to the trunk and disconnect the battery. Again within the cabin, https://www.thingiverse.com/rayzeek/designs push the chair again so you'll be able to see underneath and disconnect the yellow wiring harness. There is a black tab on the facet you could match a small screwdriver in. Pull that tab out so far as it's going to go, then pull out the wiring harness. There is a separate wire connector on high too: squeeze the sides to launch it and disconnect that too. Now pull the seat out of the automobile. This is simpler for those who also take the headrest off. 2. Now you're going to need to take away the plastic cowl on the righthand facet of the seat that has the seat controls on it. This piece is held on with 5 plastic tabs: Three are visible on the underside of the piece and a couple of are hidden inside close to the top. I was in a position to get all however the righthand inside tab utilizing just my fingers. To get that final tab I had to bend a hook form into a piece of thick wire and fish that by way of to the tab and pull the tab while pulling up on the entire piece. That was troublesome. As soon as off, you may see easy methods to controls are wired up, just unplug them so you'll be able to remove the trim solely. 3. As soon as the outer plastic trim is off, you will be confronted with a second plastic piece. To take away this there's only one bolt (T30) and then you definately just must wiggle it round until it pops off. There are some wires hooked up to this piece with a plastic rivet which does not look like it's meant to come back off so I left this piece still partially attached to the seat. 4. Subsequent, there's another plastic trim piece on the other facet of the seat on the again corner. Use the T20 bit to remove the screw, and pull the piece off. 5. There's now just one final piece of trim left, and it's a ache. It is the lower plastic piece on the entrance of the chair. You may see that there are three attachment factors. The outer two are simple: just depress the outward dealing with tab with a small screwdriver and pull outward on the piece. They're going to pop out. The center attachment level is tougher as a result of the tab you'd want to press in is actually facing inward in direction of the seat so that you cannot get to it. You may, nevertheless, use a small screwdriver and put the pinnacle contained in the attachment level, angling it in order that it catches on the tab on the inside, and pull the piece downward. It will come off ultimately. 4. Now it is time to begin removing the leather-based! The purpose of eradicating all this plastic trim was to be able to simply and absolutely remove your entire seat cushion. Notice how all across the seat the leather is stitched to this plastic lip. Now that we've eliminated all the trim, you possibly can pull this plastic lip off of its hold on the seat frame. There's one long piece for the complete front, one medium piece in the again, and two short items, one on both back facet of the chair. Also remember to undo the little bits on the again corners the place the leather-based is held by a plastic button and is stretched over a metallic nub. Now we will pull the again flap by the gap in between the upper and decrease halves of the chair and then, from the back ahead, pull the cushion up. There's just one final level of attachment: just earlier than the leg extension there is a plastic rib that's connected to the seat body. This rib is simply held in by some metallic tabs, you can start on one end and pull up and it will come out. 5. Now for the real fun half: we have to take away the leather from the foam cushion in order that we are able to get on the occupancy sensor. On the underside of the cushion, beginning from the back, you may see many steel hogties. I used a pair of pliers to remove them. Just pinch the ring and switch it until the ends are facing you, then pull them apart and take away the ring. There are four on the surface of the cushion to remove. Then on the inside you will need to remove a bunch more. I did eleven rings in whole, I believe. When you get get deep sufficient between the foam and the leather, you'll be able to fully remove the old sensor. It is glued in on the entrance and on both aspect bolsters. 6. Put in your new sensor! I glued mine again in with some Gorilla Glue Gel. Be careful as a result of not a lot appears to stick to that foam. I most likely went through 4-5 totally different glues before I found the Gorilla Glue. 7. It's all downhill from here. Now it's essential reattach the leather-based to the foam. To do this, I used zip ties. Simply put them in the precise spots the place you eliminated the metallic rings. For a few of the tougher parts to get a zip tie in place, I was in a position to push my metallic wire by means of the hole and use it as a information for the zip tie. 8. Reattach that sucker again to the seat body. Nothing too tough right here, simply take it sluggish and go in the reverse from earlier than. It'll all match. Don't forget to plug in your new seat sensor to the chair. 9. Reinstall the chair. General this mission took me about 6-8 hours. Eradicating the plastic trim is troublesome, removing the hog rings is a pain, and getting the leather-based reattached to the foam takes time. That stated, it is all fully doable with minimal tools. I've written this up as greatest I can, however I'm positive I ignored a couple of steps.