You could also check car-parts.com.

I don't understand why there are no places to have these rebuilt. Some 93-95 Saab 9000s had similar electronic throttles, they are called TCS (Throttle Control Systems). They can be rebuilt for a few hundred. Why not the Mercedes?

You might check on the web. I think there was a place in the U.K. that does the rebuilds. I'm sure it would be cheaper to send it over and have it done then to buy a new one.

I have a 94 and I keep my eyes open to buy a spare.

-Charles