I have a 1986 190E 2.3-16 with 110,000 miles. After completing a 50 mile trip last Friday, I parked in a local store for a few minutes. When I came out and started my car, it bucked once and fired-up followed by smoke and a loud screeching noise. I immediately turned the ignition off, and popped open the hood. There was smoke coming from the A/C pulley and drive belt.

I crawled under the front of the car and unplugged the a/c compressor from the side connection, and this disengaged the a/c magnetic clutch. I re-started the engine but I noticed my idle speed to be at 1500 rpm. A friend of mine suggested that I remove the main battery connection which will re-boot the main computer. So I did just that. Idle speed dropped to 1200 rpm, which is better than 1500 rpm but still not normal. How do I drop the idle speed back to normal? Thank you in advance!

Bernie
1986 190E 2.3-16
Euro Headlights with clear blinkers
Bilstein Sports
400E front sway bar
K&N air filter
Jacob's Omni Ignition

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