Can someone tell me what this all means? Alternator, tension
07-14-2009, 04:11 PM
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My Ride: E60
Model Year: 2004
Engine: N54
I know this has to do with the alternator. Is the hydraulic belt the same as a timing belt? Is it the most important belt?
07-14-2009, 04:28 PM
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My Ride: 530I Silver gray with gray leather with Premium Package, Logic 7 Premium sound system with Ipod interface, xenon adaptive headlights, Active steering, Power retractable rear sunshade, Comfort seats, Cold weather package and M5 OEM 166 wheels, Sprintbooster. Ceramic Tint all around, Bilstein Sports shocks with Eibach springs, Brake performance Rotors and Axxis ceramic pads.
I am not a mechanic but do undestand quite a bit about cars. The hydraulic tensioner looks like a small shock absorber with a pulley attachment that put tension to your serpentine belt which ties up your crank shaft pulley, alternator, air-con compressor, power steering and fan.
Base on the diagnostics, it seems you have a defective hydrolic tensioner pulley bearing. I believe this are 2 separate parts #.
Hope it helps GL
AL
Base on the diagnostics, it seems you have a defective hydrolic tensioner pulley bearing. I believe this are 2 separate parts #.
Hope it helps GL
AL
07-15-2009, 04:28 AM
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My Ride: 540i
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Originally Posted by AlwynMike' post='942647' date='Jul 15 2009, 02:50 AM
I hope your "Tech's" workmanship is better than his spelling - or am I being old fashioned???
Mike
Mike
Back to topic: OP. Maybe this RealOEM.com diagram will help.
07-15-2009, 06:25 AM
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My Ride: E60
Model Year: 2004
Engine: N54
I went to the dealer because of a whistling noise under the hood that sounded like a belt, bearing, or alternator and they fixed that. Today the same noise still exists! Don't they test drive these things, next to a building or going through a drive through you can really hear it loudly after the engine warms up.
07-15-2009, 03:17 PM
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Originally Posted by brianstash' post='942344' date='Jul 14 2009, 07:11 PM
I know this has to do with the alternator. Is the hydraulic belt the same as a timing belt? Is it the most important belt?
You will need to replace one of the alternator's belt tensioners.(a device that keeps tour belt tensioned).
You could find out exactly which one you'll need to change by going on www.bmwfans.info, and type in the codes that you got on the left of the page.
Good luck!
07-17-2009, 07:42 AM
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My Ride: E60
Model Year: 2004
Engine: N54
It's not really a squealing noise. It is a strait whistling noise. I took it back to the stealer yesterday and they are still working the problem. They think it might be the air conditioning compressor. The tech was using a stethoscope to find the whistling noise. I should get a call back today.
07-17-2009, 12:53 PM
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My Ride: E60
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Engine: N54
They just replaced the AC compressor. Can someone show me how and where to look up what was replaced? Like the pic above.
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