That could be the problem, too if I remember correctly you still have the M104 engine in there and the part that controls the CC is the throttle body actuator. If that turns out to be bad its big $$ from the dealer I used this gentleman and it was the fix to end all. www.4mercedes.com . I paid 400 for a rebuilt one and couldnt be happier since!
Chris

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94 E320 with:
18" ///AMG Monoblock II's,AMG Gen II front bumper, H&R spings,500E sway bar, Bilstein sports, Eisemann Exhst, K&N,E500 Headlamps, Crystal Clear Corners, Avantgard Grill ...and more stuff to come! oh yeah 241k miles!!


My Car WOO HOO...... Now SOLD
New car.... 2001 Jaguar XJR!!!!