Seat tongue dead, water deflector EOE,mysterious

Have a nice afternoon.

already a V8, and questions about questions - you get now ;-).

So...

1) My seat is dead in all four places. (I know you have to sit on it to make it work, but still, after minute-mlanges, you slide back and forth, if it doesn't get warmer somewhere, it's clear: My popo heats the chair, and not the other way around. I've checked all the fuses, I'm fine. (Or is the seat heating fuse not even in the driver's footroom? --> Respect right-handers!)

2) Alarm system: It reacts _not_ to the opening of the tailgate, is there a switch defective? Funny, too, my alarms are connected to the turn signals. I couldn't watch Carsten's V8.

3) What kind of sensor is this, shown in the picture in the appendix (on the left front of the cathedral is wrapped around a air-conditioning line (the driver's view)

4) Where did Zavoli hide the gas control unit - I don't find it, or do these analgesics even have a control unit (what actually --> signal comes from the Motronic, the duration of the injection process indicates whether this is a relay from the gas system or the injection nozzle is completely purplish --> therefore no control unit is necessary? Because I could only follow the wire harness from tank to Verdamper to the two relay batteries, another goes on the ignition coil on the cold start valve (which I suspect is that) The rest loses in the main wire harness and goes (probably) to Motoronic)

5) My waterbox cover is no longer in the most beautiful state (cracked), do not need to be removed o.E. - I don't think there's any alternatives, but I still want to make sure, so I'm asking here. Part No 442 819 403 A