Seat heating, which heating element fits?

Hello community,

I need your support again.

In my V8 of Dec. In 1989 the seat heating on the passenger side does not work. In an old article from 2012, Uli P describes their examination. Therefore, the heating element of the seat is definitely by (no current outlet, the leh has the required 1.3 ohms, at least in approximately, the thermostat has 17 KOhm).

At Audi Tradition, a heating element with the spare part number 441 963 555 L is available. On the Internet I have researched a spare part number 441 963 555 J for seats with electrical adjustment (I have, with memory and in leather). On request, Audi Tradition tells me that I would have to install the spare part 447 963 555 S, since that would no longer exist.

The part numbers are very similar. Who knows the differences? Could I perhaps use the 441 963 555 L available???

Thank you in advance

Bernhard