Xoutpost.com - aircon - fan when should it fire up?

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- - aircon - fan when should it fire up? (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/96851-aircon-fan-when-should-fire-up.html)

Overboost

04-24-2018 10:47 PM

Quote:

Originally Posted by PCH BMW (Post 1133282)

Today’s AC problem and the fix. AC / air conditioner / Auxiliary Fan
Mech. recommended new BMW Aux Fan ($1,000 to replace. $550 parts/ $450 2.5 hours); and return in 1 week to visually inspect for leaks (look for dye with a special light ).
Outcome: I will likely replace the AUX fan myself once I zero in on a non-BMW brand fan that costs less than a new set of golf irons.

When I replaced mine I got a new Behr unit off fleaBay for under $200. You have to pull the front bumper but it honestly takes about 1 hour start to finish. :thumbup:

PCH BMW

04-24-2018 11:42 PM

Thanks for the info Overboost.

Blackjetvette97

04-25-2018 05:36 PM

Hi all,
So, my compressor clutch IS engaging. Tested low side pressure as I watched the clutch engage(pressure began at 100ish). Clutch engaged and pressure didn't hardly move at all. Fan does not turn on at start-up for test run or when A/C is on Max. There was NO cool air blowing out, even with comp clutch engaged. I assume, since pressure is so high on low side, that it indicates no leak(would there be low to no pressure if leak?).

80stech

04-25-2018 06:31 PM

That pretty much points to a bad compressor.

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