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#1
02-14-2007, 06:43 PM
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300TE Revving at 1200rpm HELP
Hi techies;
My pops 93 300TE just started staying idling at 1200 RPM. Any idea what this could be and what we should do? Thanks! AA ...
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'87 924S '81 280SEL Sold -> 81 300SD - 93 300E w/ 3.2 85 300D- 79 300SD 82 300CD 83 300CD - CA 87 190E 5 spd 87 Porsche 924S "..I'll take a simple "C" to "G" and feel brand new about it..." 
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#2
02-15-2007, 04:32 AM
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Check the idle air valve is plugged in, and the connections aren't loose or corroded. Its also a good idea to give it a clean through with carb cleaner.
Try unplugging it to see if the idle increases further. If so, then you must have a vacuum leak on the engine side of the throttle body ie. the intake manifold.
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Ben '85 500 SEL '85 928S2 '88 560 SEC '90 750i
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#3
02-15-2007, 10:21 AM
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being a 93 does this car have asr?
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David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg
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#4
02-15-2007, 11:46 AM
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1200 Rpm
Check the following;Overvoltage relay, CC/ISC gets power via OVP.
Floor mat pushed up against pedal. sticking linkages starting at the pedal. I don't recommend using carb cleaner on the throttle body. Mike
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#5
02-15-2007, 03:53 PM
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Quote:
If that switch fails, your RPMs will stay high when you lift your foot from the accelerator. It removes in 2 seconds and costs about $50.00 from the dealer. You cannot visually determine if it is faulty, nor do so by hand. If the linkage it depressing the switch arm, and your RPM is not dropping, the switch is broken.
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2008 E350 4matic / Black/Anthracite ------------------------------------ Gone but not Forgotten: 2001 E430 4matic, 206,xxx miles, Black/Charcoal 1995 E320, 252,xxx miles, Black/Grey 1989 260E, 223,00 miles, Black/Black
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#6
02-15-2007, 04:00 PM
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Note:
Because you have a '93 car, your engine is different, and you may not have this switch. (I had that problem on my 89 260E)
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2008 E350 4matic / Black/Anthracite ------------------------------------ Gone but not Forgotten: 2001 E430 4matic, 206,xxx miles, Black/Charcoal 1995 E320, 252,xxx miles, Black/Grey 1989 260E, 223,00 miles, Black/Black
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