Was never available as spare part!

ASR on 1991-93 cars with CIS-E injection ststems can be a total pain.
Most of the parts are so $$$ that many people use the control linkages from a regular M103 engine

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator