Had MB replace 7 heated seat elements till warranty expired,then the four went down to one,over time(car is 10 years old).Getting old and on a long trip ,I really felt the need for heat.( I DO live in Florida!)
Bought these on Ebay:$69 the set of 4 pads.
I found an upholsterer locally who did some nice work on my 73 Mustang.
Said it would take an hour,while I waited.
20 mins later, sad face appears in waiting room:"your seats don't move and I cant get to the bolts....".
I explained the POS seat relay was intermittent and I was going to re-solder it eventually.Whereupon he went on line, located said POS diagram,removed it and RE SOLDERED it!
3 hours later, back on the road with enough heat for TWO bums and backs.
Quoted price=$100,but the relay r&r was an extra $25 (bargain-new one is around $35)
A very happy