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Old 08-31-2016, 09:30 AM
treetops treetops is offline
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Join Date: Mar 2014
Location: Philly
Posts: 492
Quote:
Originally Posted by compu_85 View Post
If you keep the car above 2000 rpm does it start cooling again? The computer might shut the compressor off momentarily when you accelerate to give more power to the wheels. I'd venture that if you notice a vent temp difference the charge is low or the compressor is worn.

-J
It depends on rpm, I did an up hill test in 3rd gear with rpm in the high 2000s with the ACC menu up, ambient 83F, #3-4 increased about 4 degrees, #5 about 8(from the low 40s to 51-52) and #7 dropped to about 9-10 from 15-17. So Id have to say this seems to happen mostly above 3K rpm.

I dont have gauges, but will ask my mech to run some tests when the car is in for inspection in the next week or so.

Thanks for all the input....hoping the compressor is not showing signs of its age-which is unknown to me.
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Treetops
06 E320 CDI 127K Miles
87 300TD 231K Miles

99 E300 269K Miles-Sold
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