Wife has a my19 a5 cab sline with heated seats. Can went in for extended warranty check. I’m told the heated element on the back of the drivers side doesn’t work. It’ll be fixed under warranty. Is it correct that only the drivers side has this heating element on the back and butt? The passengers seat definitely only heats from the bottom. We always thought the car only heated our butts. Seems weird Audi would only fit a full heated seat for the driver only.