both AC and Heater makes engine sound

eerener · 02-20-2012, 04:34 PM

They make sound when I turn on the AC or heather. The sound is like the engine sound. It's like there is a second mini engine in the hood and following the main engine sound. I hope I described it well. BTW, heather heats and AC cools well.

eerener · 11-08-2012, 07:24 PM

like this sound

Noise coming from the AC system while compressor is ON. It ends ~1 sec after pressing the AC OFF button. It increases in intensity along with the engine RPMs.

eerener · 11-09-2012, 04:16 PM

No idea? anyone?

straight_beamin · 11-09-2012, 04:19 PM

Compressor on the way out maybe?

eerener · 11-09-2012, 04:22 PM

it is a $1000 part, I don't know if it is worth to replace

lcoleman · 11-09-2012, 04:26 PM

Read the description of the YT video. It posts a TIS link about this:

http://tis.spaghetticoder.org/s/view.pl?1/08/53/13

straight_beamin · 11-09-2012, 04:41 PM

Good find, im sure thats a fraction of the price of a compressor

straight_beamin · 11-09-2012, 04:43 PM

Here is a remanufactured compressor. Not as expensive as i thought. http://item.mobileweb.ebay.com/viewi...142&cmd=VIDESC

Wolrab · 11-09-2012, 04:45 PM

If I read the opening post correctly, this noise also happens when the heater is on and the AC off. That doesn't jive with a compressor problem.

eerener · 11-09-2012, 04:47 PM

Quote:

Originally Posted by lcoleman

Read the description of the YT video. It posts a TIS link about this:

http://tis.spaghetticoder.org/s/view.pl?1/08/53/13

According the TIS it is the "intake pipe from the evaporator to the air-conditioner compressor"

How can it causes this noise? Is it clogged?

lcoleman · 11-09-2012, 04:53 PM

Straight from that TIS:
Cause: The vibrations of the engine are transmitted into the vehicle interior through the intake pipe of the air-conditioning compressor.

Honestly, if it happens with A/C on, I would tend to suspect the compressor as well. not sure about the heater, unless you're doing something with an automatic setting where the heat turns on the compressor as well.

I turned up this thread searching that part #, too:

http://www.e46fanatics.com/forum/sho...d.php?t=513153

Good luck.

eerener · 11-09-2012, 05:01 PM

Thanks a lot everybody.

straight_beamin · 11-09-2012, 08:40 PM

No problem, post back and let us know! Do not buy an oem compressor you will get butt raped! Fcp euro ftw

02-20-2012, 04:34 PM	#1
eerener Registered User Join Date: May 2010 Location: usa Posts: 58 My Ride: 2001 BMW e46 325i View My Garage	both AC and Heater makes engine sound They make sound when I turn on the AC or heather. The sound is like the engine sound. It's like there is a second mini engine in the hood and following the main engine sound. I hope I described it well. BTW, heather heats and AC cools well.

11-08-2012, 07:24 PM	#2
eerener Registered User Join Date: May 2010 Location: usa Posts: 58 My Ride: 2001 BMW e46 325i View My Garage	like this sound Noise coming from the AC system while compressor is ON. It ends ~1 sec after pressing the AC OFF button. It increases in intensity along with the engine RPMs. Last edited by eerener; 11-08-2012 at 07:26 PM.

11-09-2012, 04:16 PM	#3
eerener Registered User Join Date: May 2010 Location: usa Posts: 58 My Ride: 2001 BMW e46 325i View My Garage	No idea? anyone? Last edited by eerener; 11-09-2012 at 04:16 PM.

11-09-2012, 04:19 PM	#4
straight_beamin Registered User Join Date: Apr 2010 Location: niagara falls Posts: 650 My Ride: 2000 bmw 323i View My Garage	Compressor on the way out maybe? __________________

11-09-2012, 04:26 PM	#6
lcoleman Registered User Join Date: Mar 2007 Location: the barnyard Posts: 2,410 My Ride: '79 Massey Ferguson View My Garage	Read the description of the YT video. It posts a TIS link about this: http://tis.spaghetticoder.org/s/view.pl?1/08/53/13 __________________

11-09-2012, 04:22 PM	#5
eerener Registered User Join Date: May 2010 Location: usa Posts: 58 My Ride: 2001 BMW e46 325i View My Garage	it is a $1000 part, I don't know if it is worth to replace

11-09-2012, 04:41 PM	#7
straight_beamin Registered User Join Date: Apr 2010 Location: niagara falls Posts: 650 My Ride: 2000 bmw 323i View My Garage	Good find, im sure thats a fraction of the price of a compressor __________________

11-09-2012, 04:43 PM	#8
straight_beamin Registered User Join Date: Apr 2010 Location: niagara falls Posts: 650 My Ride: 2000 bmw 323i View My Garage	Here is a remanufactured compressor. Not as expensive as i thought. http://item.mobileweb.ebay.com/viewi...142&cmd=VIDESC __________________

11-09-2012, 04:45 PM	#9
Wolrab Registered Gadfly Join Date: Jan 2009 Location: Houston Posts: 483 My Ride: 330Ci MT, 545i SMG View My Garage	If I read the opening post correctly, this noise also happens when the heater is on and the AC off. That doesn't jive with a compressor problem. __________________ Engineers do it with a torque wrench Last edited by Wolrab; 11-09-2012 at 04:50 PM.

11-09-2012, 04:53 PM	#11
lcoleman Registered User Join Date: Mar 2007 Location: the barnyard Posts: 2,410 My Ride: '79 Massey Ferguson View My Garage	Straight from that TIS: Cause: The vibrations of the engine are transmitted into the vehicle interior through the intake pipe of the air-conditioning compressor. Honestly, if it happens with A/C on, I would tend to suspect the compressor as well. not sure about the heater, unless you're doing something with an automatic setting where the heat turns on the compressor as well. I turned up this thread searching that part #, too: http://www.e46fanatics.com/forum/sho...d.php?t=513153 Good luck. __________________

11-09-2012, 05:01 PM	#12
eerener Registered User Join Date: May 2010 Location: usa Posts: 58 My Ride: 2001 BMW e46 325i View My Garage	Thanks a lot everybody.

11-09-2012, 08:40 PM	#13
straight_beamin Registered User Join Date: Apr 2010 Location: niagara falls Posts: 650 My Ride: 2000 bmw 323i View My Garage	No problem, post back and let us know! Do not buy an oem compressor you will get butt raped! Fcp euro ftw __________________

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