I love my LS430 and it has been a great car. Until recently. It has started making a very very bad smell when the heater is on. It makes the smell most badly when decelerating or accelerating. I am going to check the a/c drain pipes to see if they are blocked. Is there anyway of cleaning the a/c unit because I am sure this is where it is coming from. Also the Mark Levinson amplifier appears to be very selective about operation. Sometime it works and sometimes it doesn't.The car has only covered 38,000 miles and I don't think this is acceptable that an audio component should fail with so little use.This has been an ongoing problem for over a year but the dealer wasn't interested.Has anyone else had similar problems ?