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#31
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AirCon - not cold, but compressor working?
Final low/high gauges. 45/245 psi. It was BRUTAL HOT over 90F so those are relatively high but fantastic results. 39F output at dash not recirculating with 90F outside. . Do you have the final pressure numbers after the minor refill? I have a feeling it's just low still This example was Lumba2 (wife's car). At about 15 years old original compressor, I have a feeling I had to slightly overcharge to get dashboard results. I think maybe 40/240 weird be closer to on spec. Even though it was hot as hell that day I was only getting 50F in the dash with low side 40. 5 now psi and it's been working better than mine ever since. I don't think I've had to recharge either mine or wife's since the initial recharge after purchased. (2 Summers)
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
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#32
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I didn't take note of the pressures after the extra gas was added. I'll take the car back there and see if bumping up the pressures improves things further.
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'05 E53 Sportpac 3.0D, chipped to 200kW & 600Nm. The perfect racecar tow vehicle '12 E91 335i motorsport - wifey's wagon |
#33
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I did some more tests on the aircon system today, to better understand where the fault lies (I hate not knowing these things!!). The behaviour now is consistently showing that it can't cool the car when revs are low (<1500rpm) or when it's asked to do a lot of cooling.
Here are the results, using INPA to get the relevant figures:
So, a couple of questions from me:
Given the pressure levels are in range, yet the pressure sensor barely budged throughout, I reckon this is leaning more and more towards the variable compressor being stuck in its minimum compression setting. I've got a professional turning up on Thursday, so I'll ultimately leave it up to him to sort unless he starts sounding fishy.
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'05 E53 Sportpac 3.0D, chipped to 200kW & 600Nm. The perfect racecar tow vehicle '12 E91 335i motorsport - wifey's wagon |
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a/c, air conditioning, aircon |
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