My brothers 87 300E (gasoline motor) 190,000 miles, started downshfting on the highway for no apparent reason when the AC is on. He just had the auto tranny serviced : fluid change & filter, also just had a brand new AC compressor put in,new serpentine belt, new fan blower (fan only blows on highest setting!)
What the hell is wrong with this thing? I thought the fluid may be the problem. The guy who put the parts in (a moolighting Benz tech) said just to shut the AC off. Whats up?
'84 190E 2.3
'83 Porsche 944 (track car)
'84 Porsche 944 (parts car)
85.5 Porsche 944 (sled)