Quote:
Originally Posted by jeepo23
This thread is excellent, exactly the issue I ran into with my E46 drivers seat.
I am wondering, do you know if this can be achieved with any kind of mat? I've found some on ebay for $30,
2 Pcs Seat Heater Pads Heated Seat Pads Universal Carbon Fiber Seat Heater Pads | eBay
However, am I reading that correctly that these pads are only rated at 30W, while the one you bought is 100W and the BMW's are 50W?
And I am also wondering, how does the wiring work considering these pads only have 2 wires coming off them?
I did a fair bit of testing on my drivers seat, and it appears that if I apply pressure on the lower pad by the seatbelt buckle I can get the LEDs to stay on.. However I am not sure if this a issue with my heating grid or the temp sensor in the seat. |
Thank you, I hope it can help you find a solution for your defective heating seat.
I think that other kind of mats would work also. The one I found was higher wattage, so I had to use a resistor to drop the voltage. If you can find one with the same power as BMW and a dimension that fits in between the side bolsters, I think you will be ok.
I wouldn't use one with a wattage lower than the BMW one though.
For the wiring, if there is only 2 wires, that means they are for the heating element. The extra wires on other models usually are for the temperature sensor.
By pressing on your seat you can make it work because you make the broken wires to touch each other and complete the circuit. The control module then sees a working mat and applies voltage.