In my 3.2 liter M104 engine, the throttle actuator actually combines all of those functions into one part. I have held it in my hand. It sits under the intake manifold.

The earlier 300E's with the m103 engine do not have a throttle actuator. I don't know what it is called, but it is not called the "throttle actuator".

I was under the impression that M119 engines have the same (or similar) throttle actuator that M104 engines have, and I haven't changed my mind, (at least not yet).

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".