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#1
01-30-2002, 09:41 AM
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A/C compressor auto shut off?
Found a set of uninhabited roads last night and decided to re-acquaint myself with the upper limits of my 500E.
 I had both distributor caps replaced recently and noticed a bit more power on tap. I decided to find out just how much. After doing several WOT starts from 1st gear, I noticed that on WOT starts, and as the speed climbs on full WOT, the a/c compressor cuts out (i.e. a/c air is not cold). After letting off the accelerator (as I run out of road), cold air comes back on. Is this just my car or does it happen to others as well? It makes sense to me to cut out the a/c compressor on WOT for a few more horsies...and I ain't complaining. Just worried that instead of MB's technological prowess showing up, something may actually be wrong with my baby. (After replacing both distributor caps, by the way, the car was willing to break loose the rear tires a bit more eagerly  )
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Rainmaker 93 500E, 43k mi, Pics of upgrade parts Evo II Wheels on Dunlop FM901 235/45x17s 94 Facelift RennTech CF Airbox RennTech ASR Defeat RennTech Chip 1st Gear Start 97 Range Rover 4.6 HSE Vitesse, Yellow, "Tonka" (sold) 
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#2
01-30-2002, 11:00 AM
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Non-technically speaking---
last summer, I tested some E500 WOT spurts with a/c on and a/c off (city and highway) I didn't observe the a/c cut out on WOT in city or highway spurts performance-wise: I did observe that the a/c zaps a noticable amount of juice from the E500 (vs. w/ a/c off)...and we all know that with 100 degree coolant temps even more juice has disappeared.... -fad
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#3
01-30-2002, 11:06 AM
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 uh oh
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Rainmaker 93 500E, 43k mi, Pics of upgrade parts Evo II Wheels on Dunlop FM901 235/45x17s 94 Facelift RennTech CF Airbox RennTech ASR Defeat RennTech Chip 1st Gear Start 97 Range Rover 4.6 HSE Vitesse, Yellow, "Tonka" (sold)
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#5
01-30-2002, 11:11 AM
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Nope. But then again, I didn't play with it often enough. Just sold it last week too. Too bad I can't check.
Anybody else have this happen to 'em?
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Rainmaker 93 500E, 43k mi, Pics of upgrade parts Evo II Wheels on Dunlop FM901 235/45x17s 94 Facelift RennTech CF Airbox RennTech ASR Defeat RennTech Chip 1st Gear Start 97 Range Rover 4.6 HSE Vitesse, Yellow, "Tonka" (sold)
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#6
01-30-2002, 11:46 AM
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There's no A/C cutoff-funny, 'cuz my '82 Mustang GT shut off the A/C under WOT.
I'd be willing to bet your monobelt is slipping...how's the tensioner look? First place you should check....if the system detects any slippage, it takes the A/C offline
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"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss Michael 2014 E63S Estate 2006 SLK55 1995 E500 1986 Porsche 944 turbo
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#7
01-30-2002, 11:52 AM
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Good stuff, Michael!
I'll have it checked this weekend. ...and I thought I had a really smart car! hahaha
__________________
Rainmaker 93 500E, 43k mi, Pics of upgrade parts Evo II Wheels on Dunlop FM901 235/45x17s 94 Facelift RennTech CF Airbox RennTech ASR Defeat RennTech Chip 1st Gear Start 97 Range Rover 4.6 HSE Vitesse, Yellow, "Tonka" (sold)
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