Yes, but It will usually die at weird times not just at idle. Does the car idle a little low all of the time? There is an idle modification that was on the Mercedes Red Fische that allowed for increased RPM while in gear. Also I have seen water in the connector for the CIS-E control unit. And I have seen the speed sensor faulty on the back of the speedo...My advise take it to a pro that knows these cars!!
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