[WINGS]

My 2005 Mazda 6S driver side heated seat turned on one day and there was an extremely very, very, hot spot that occurred at the rear right side of the seat. I think the seat almost started smoldering (smell). Anyway, I shut off the switch, trying the seat heater the next day. At this point, the seat 'does not' heat; however, the switch does light upo indicating the circuit is good to the switch and I'll assume to the seat heating coil. Checked all fuses and they're good. What I think happened, the heating coil where the really hot spot was felt, developed a high resistance; thus the very high heat being felt. Thereafter, I think that when it was turned on again, the heating coil 'opened' at that point. I assume I can check resistance of the seat coil when weather allows (Minnesota and very cold to work in garage). What I'm wondering is if anyone has ever replaced this heating coil in their seat. If so, do you have a source and P/N that can be ordered.

 

[kadowson]

My Audi A4 had a "hot spot" on the right side of the driver seat. If I left the seats turned up high, it eventually would burn my leg. I could run it at 1-2 and it would be fine and the whole seat would heat up but I knew better than turn it any higher. Nothing ever came of it, i.e. it never stopped working completely so I didn't mess with it.
I found the element part at parts.com. Hope it helps!
2005 Mazda MAZDA6 Electrical - Parts.com

 

[drew2468]

i bought my car used and had a symilar problem, i have a MS6 and found the previous owner spilled coffee i cleaned the connectors in the middle console with maf cleaner and have not had the problem from that time