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#11
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Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
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#12
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Crystalworks was right, it is a stretch belt on this model. My last N52 (07 328i) just had one single serpentine belt that went around all components. This later updated version has two belts, AC being a stretch belt with no tensioner. I've not seen that before.
This seems helpful: https://www.xbimmers.com/forums/show....php?t=1035648 |
#13
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Quote:
Look on YouTube etc. People have fashioned their own tool out of scrap at home. I would prob use some tire changing levers and hand crank the motor to turn a stretch belt on vs. buy the official tool I'll use twice in the life of the car. I'd be sad if I pulled=cut the belt and the sound didn't go away. Harbor freight has the mechanic stethoscope.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#14
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Put a large screwdriver handle to your ear as you poke around to better identify where the sound is coming from. By chance, when you do that, does it sound like it's coming from the oil filter housing? I'm having trouble deciphering the noise in your video, but oil pumps can sound like what I THINK I'm hearing. It'll sound like it's coming out of the OFH.
AM.
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E70 2010 3.0 M57 AT Titanium Silver with Black Leather E53 2004 3.0 M54 AT Toledo Blue with Gray Leather E83 2008 3.0 N52 AT Silver Gray Metallic with Black Vinyl E46 1999 2.8 M52TU 5MT Black with Tan Leather 250K+ miles (Sold, but not forgotten) |
#15
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I can definitely see oil pump making that sound.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#16
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Listen to the vid from 2:20 to 2:34 you can hear a distinct whine. It kind of sounds like an alternator with bad bearings. Or sometimes you see a junk old GM car with a whiny transmission sound like that.
Very tempted to snip that AC belt off. But I also think it might be DISA related? IDK. |
#17
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Unplug disa and confirm unrelated. Or remove disa and look at the flap.
DISA makes a distinct plastic click sound I didn't hear. Use a stick or large screwdriver to listen for the source. (or FFT app).
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#18
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Hey everyone, check out this other video I found: https://youtu.be/k0DDbmPvt0Q
This is exactly what it sounds like. The comment section not really clear on what the final fix was, either AC pulley or vacuum pump. This is the vacuum pump: https://www.fcpeuro.com/products/bmw...44-11667558345 Thoughts? |
#19
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The stethoscope/long screwdriver will tell you. So would cutting the AC belt. Installing them without a tool sucks. I ordered the Lisle 59370 tool for our E70 diesel for a reasonable cost. Maybe you can find one suitable for the N52 in your 35i?
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#20
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Yes yes, I will order the Lisle stethoscope haha.
Ok, it's 26 degrees out and I was desperate enough to hack off the AC belt. Easiest way forward considering it's a stretch belt. I cut the belt off and.... the noise is still there!!! So it's not the alternator, power steering pump, or AC compressor. Could this be the vacuum pump? |
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