Tomorrow, I am taking my 2004 E55 to the repair shop for, among various annoyances, two front seats that are constantly (on an intermittent basis, of course) in motion. The side bolsters, the seat back, the seat bottom all randomly inflate and deflate -- even when I may be standing still at a light.

Does this happen to anyone else?

 

Nope... but I have noticed they are very sensitive.. I turned mine off just because I thought it was really toucy.. but in a few minutes I was missing it so back on.. I love'em so far.

 

I have had this problem, of course they can't diagnose it..

My experience: random and intermitten, no problem with random side bolster movements excep that after a long drive, they may just shut off all together. I can squeel the tires around a corner and nothing. Turn off and on and nothing.

Also, sometimes lumbar will inflate all the way for no reason, as you mention. Annoying. Goes well with the random radio volume increases (and decreases..). Let me know if you find a fix, and I'll do the same.

 

My wife has complained of the same sort of thing but it occurs on a rare enough basis so she is not sure. Today I thought the lumbar support pushed outwards on my seat -- perhaps because I was accelerating at that time.

 

I thought this was the "massage" feature at work!

 

Unrequested massage.

 

My passenger seat (dynamic) has not worked since day one and the car is going to the dealership next tuesday to fix it (hopefully).

 

I think its normal they should work like that, when you turn or smth they inflate and deflate...

 

The '04 E55 I drove at a dealership was doing this at the stoplight. It would inflate and deflate the lumbar support seemingly randomly. I asked the sales associate if he knew why it did this, but clearly he was unaware.

 

Both my front seats are out - all the inflatable features. Car is at the dealer right now!

 

my pas seat was fixed last week at the dealership. A small air leak was the problem. All smiles now.

 

I've experienced the same problem. Most often noticed: the slight inflation of the lumbar support as I'm braking for a stop sign or red light. Once or twice I've thought that one bolster or the other has also slightly inflated. This is all with the Dynamic Drive feature off.

 

well, all bets are off now!! driving home tonight, I couldn't get either seat to work. even turned the engine off and back on 1/2 way home. WTF probably (read - Hopefully) work fine tomorrow. BTW - saw White Chicks - was funny.

 

Broken wire - seats work as advertised now.