AC Compressors put a serious drag on the motor! So yeah it is normal to slow it down somewhat. Really noticeable for me on my C230K cause that poor little 1.8 just can't spin it as easily as a V-6 or V-8 can! How much do you slow when the AC compressor kicks in?

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~Jamie
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2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....