Product review (1 stars): Thermador products are garbage!  Don't waste your money!  Buy anything else.
I have the same issue as the other reviewers.  I bought this "top of the line" thermador wall oven and a thermador professional cook top for my kitchen remodel.  I thought I was buying quality (I certainly paid for it anyway).  The electronics in the oven are flawed.  The oven failed after less than a year of use.  I called for warranty service, and had the oven repaired under warranty.  They replaced the electronic control board.  Next time I used the oven, I had the same problem.  Called for warranty service, but by that time it was out of warranty.
Problem description: My oven will run normally, then out of the blue, the broiler element comes on and the oven eventually over-heats, and then shuts down with an "E115" error code.  By that time my dinner is ruined.  This could have caught my house on fire.  This happened at Thanksgiving, while I wasn't watching the oven....fortunately I came home and smelled the smoke.
I've called Thermador.  After spending hours on hold, I finally got thru to a "service representative", and they claim "I've never heard of that problem before".  I'm sure they're trained to say this.  Anyway, after dealing with this for months, I'm cutting my losses and getting rid of this piece of junk before it burns my house down.  There's 4 grand down the toilet!
By the way, I bought a GE advantium microwave oven at the same time as the thermador oven (didn't want to spend the extra $$$$s on thermador; it was the one good decision I made).  I'm really impressed!  The speed cook feature oven fries french fries and other foods amazingly well.  And best of all, it still works!  Maybe I'll look at the GE cafe series.....