whine at idle....ideas ????

Si-M240i · 11-04-2014, 02:55 AM

I have notice that at idle I can hear a faint whine. As soon as the revs are raised it goes away. The car performs normally otherwise, any ideas ?

2deerwhistlers · 11-04-2014, 09:05 AM

Quote:

Originally Posted by Si-335d

I have notice that at idle I can hear a faint whine. As soon as the revs are raised it goes away. The car performs normally otherwise, any ideas ?

A/C compressor or related pulleys?

Mark M · 11-04-2014, 01:03 PM

Is your wife in the trunk?

Puerto Rican 335d · 11-04-2014, 01:47 PM

Mark M thats a good one jajajaja

Brad335d · 11-04-2014, 06:40 PM

There is a A/C Belt issue that has this TSB. I had this issue.

2011 BMW 335d Sedan (E90) L6-3.0L DSL Turbo (M57Y)
Vehicle » Engine, Cooling and Exhaust » Engine » Technical Service Bulletins » All Technical Service Bulletins » A/C/Engine - A/C Compressor Belt Squeals
A/C/ENGINE - A/C COMPRESSOR BELT SQUEALS
SI B64 08 11
Heating and Air Conditioning
December 2011
Technical Service
SUBJECT
Air Conditioning Compressor Belt Squeals
MODEL
E90 (335d)
Vehicles equipped with the M57Y diesel engine produced from 8/31/2008 to 8/30/2011

SITUATION
A squealing noise comes from the engine compartment when the vehicle is first started with the air conditioning (A/C) already activated.
CAUSE
Air conditioning compressor belt
PROCEDURE

1. Duplicate the issue.

2. Replace the A/C compressor drive belt with the part number listed below.

Note:
The replacement part is the E63 A/C drive belt.
The part number listed for this vehicle in ETK is not the correct part for this repair, request and invoice this item by the part number specified and listed below.

Performing a part number look-up in ETK by VIN or model will result with the wrong part being installed.

3. Refer to Repair Instructions REP 11 28 050 (Removing and installing/replacing the drive belt for A/C compressor).

dzlmoose · 11-04-2014, 08:28 PM

Quote:

Originally Posted by Mark M

Is your wife in the trunk?

GottaBeKD · 11-04-2014, 08:37 PM

Quote:

Originally Posted by Mark M

Is your wife in the trunk?

Oh Deere. Better keep it locked then

WreckerX5d · 11-04-2014, 09:48 PM

Quote:

Originally Posted by Mark M

Is your wife in the trunk?

There's other places to keep her? !?

Si-M240i · 11-05-2014, 01:12 AM

Thanks chaps. I thought the wife would be suggested but the whining gets a whole lot louder with the revs raising when the wife is in the car. This whine I am on about is faint at idle and stops as soon as the revs rise. It's not a squeal so alas the AC belt is not slipping.

Vreimann · 11-05-2014, 06:07 PM

Quote:

Originally Posted by Si-335d

I have notice that at idle I can hear a faint whine. As soon as the revs are raised it goes away. The car performs normally otherwise, any ideas ?

Until the oil is adequately warm, at around 1300-1500rpm's the turbo has a quiet whine/whistle.

It could be this now the weather is cooling down. It is very faint.

Si-M240i · 11-06-2014, 02:47 AM

Quote:

Originally Posted by Vreimann

Until the oil is adequately warm, at around 1300-1500rpm's the turbo has a quiet whine/whistle.

It could be this now the weather is cooling down. It is very faint.

that's possible but its only at idle so 700 RPM and it still does it when warm though

Dragosul · 11-26-2014, 06:32 AM

Quote:

Originally Posted by Si-335d

that's possible but its only at idle so 700 RPM and it still does it when warm though

I have the same problem with my car and it happened to me last winter as well.
The only solution I found to this problem is to let the car warm up then turn off the engine and then on again and the whine disappears.

Hope this helps.

Si-M240i · 11-27-2014, 03:21 AM

I will try that, thanks

Si-M240i · 11-28-2014, 02:37 AM

nope still does it after restarting

Get lit · 12-01-2014, 10:33 PM

Maybe check the power steering pump? I know they usually will whine at higher rpm also but it may be worth checking out?

Si-M240i · 12-02-2014, 02:30 AM

Quote:

Originally Posted by Get lit

Maybe check the power steering pump? I know they usually will whine at higher rpm also but it may be worth checking out?

the sound is similar to when you put the power steering under load but it only makes the noise at idle as soon as the revs rise above 1000rpm it completely gone, not worse

2deerwhistlers · 12-02-2014, 07:35 AM

Quote:

Originally Posted by Get lit

Maybe check the power steering pump? I know they usually will whine at higher rpm also but it may be worth checking out?

Haha welcome to the forum.. Get lit!

335D Alpha Pappa · 12-02-2014, 08:30 AM

I heard the smaller turbo whine for the first time. It was 21F outside. I only heard it at idle and it did increase pitch with rpms. Waited a minute to get the fluids warm before I left. Did not hear it when I got to work.

Si-M240i · 12-02-2014, 08:39 AM

Quote:

Originally Posted by 335D Alpha Pappa

I heard the smaller turbo whine for the first time. It was 21F outside. I only heard it at idle and it did increase pitch with rpms. Waited a minute to get the fluids warm before I left. Did not hear it when I got to work.

I hear the small turbo whine too and as you say it goes away when warmed up. This whine is here cold or warm and never goes away at idle

11-04-2014, 02:55 AM	#1
Si-M240i Major 153 Rep 1,450 Posts Drives: M240i LCI Join Date: Aug 2008 Location: England iTrader: (0)	whine at idle....ideas ???? I have notice that at idle I can hear a faint whine. As soon as the revs are raised it goes away. The car performs normally otherwise, any ideas ? __________________ M240i LCI (Mineral Grey):- M2 Door Mirrors, M2 Black Kidney Grills, Lower grille inserts, MP Exhaust, Dinan Carbon Fibre CAI, hot climate intake elbow
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11-04-2014, 01:03 PM	#3
Mark M Major 245 Rep 1,294 Posts Drives: E30M3 E83X3 E90335D Join Date: Aug 2007 Location: Lancaster, PA iTrader: (0)	Is your wife in the trunk? __________________
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11-04-2014, 01:47 PM	#4
Puerto Rican 335d Brigadier General 236 Rep 3,488 Posts Drives: Montego Blue 335d Join Date: Jun 2011 Location: Puerto Rico(Dominican Republic 03/2017) iTrader: (0)	Mark M thats a good one jajajaja __________________ RENNtech Flash(Lenny Wu)/WAGNER IC Enkei Rajin 18"/Execuhitch Hitch/Koni FSD Soft Ride Bike Rack/Brava Synthetic Motor Oil(Made in Puerto Rico)/Meth(in the works)/CBU done w Andrew EGR Race Pipe (whoa! what an animal it is now)
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11-04-2014, 06:40 PM	#5
Brad335d Oil Burner 26 Rep 231 Posts Drives: 2011 BMW 335d Join Date: Nov 2009 Location: Atlanta, GA iTrader: (0) Garage List 2014 Volvo XC60 T6 AWD [0.00] 2011 BMW 335d [0.00] 2007 Ford Shelby GT500 [0.00]	There is a A/C Belt issue that has this TSB. I had this issue. 2011 BMW 335d Sedan (E90) L6-3.0L DSL Turbo (M57Y) Vehicle » Engine, Cooling and Exhaust » Engine » Technical Service Bulletins » All Technical Service Bulletins » A/C/Engine - A/C Compressor Belt Squeals A/C/ENGINE - A/C COMPRESSOR BELT SQUEALS SI B64 08 11 Heating and Air Conditioning December 2011 Technical Service SUBJECT Air Conditioning Compressor Belt Squeals MODEL E90 (335d) Vehicles equipped with the M57Y diesel engine produced from 8/31/2008 to 8/30/2011 SITUATION A squealing noise comes from the engine compartment when the vehicle is first started with the air conditioning (A/C) already activated. CAUSE Air conditioning compressor belt PROCEDURE 1. Duplicate the issue. 2. Replace the A/C compressor drive belt with the part number listed below. Note: The replacement part is the E63 A/C drive belt. The part number listed for this vehicle in ETK is not the correct part for this repair, request and invoice this item by the part number specified and listed below. Performing a part number look-up in ETK by VIN or model will result with the wrong part being installed. 3. Refer to Repair Instructions REP 11 28 050 (Removing and installing/replacing the drive belt for A/C compressor). __________________ '11 BMW 335d Sport -JBD '07 Shelby GT500 -Not Stock
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11-05-2014, 01:12 AM	#9
Si-M240i Major 153 Rep 1,450 Posts Drives: M240i LCI Join Date: Aug 2008 Location: England iTrader: (0)	Thanks chaps. I thought the wife would be suggested but the whining gets a whole lot louder with the revs raising when the wife is in the car. This whine I am on about is faint at idle and stops as soon as the revs rise. It's not a squeal so alas the AC belt is not slipping. Last edited by Si-M240i; 11-05-2014 at 02:24 AM..
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11-27-2014, 03:21 AM	#13
Si-M240i Major 153 Rep 1,450 Posts Drives: M240i LCI Join Date: Aug 2008 Location: England iTrader: (0)	I will try that, thanks
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11-28-2014, 02:37 AM	#14
Si-M240i Major 153 Rep 1,450 Posts Drives: M240i LCI Join Date: Aug 2008 Location: England iTrader: (0)	nope still does it after restarting __________________ M240i LCI (Mineral Grey):- M2 Door Mirrors, M2 Black Kidney Grills, Lower grille inserts, MP Exhaust, Dinan Carbon Fibre CAI, hot climate intake elbow
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12-01-2014, 10:33 PM	#15
Get lit HMFIC 377 Rep 522 Posts Drives: 2016 F80 M3 Join Date: Oct 2014 Location: Charleston SC iTrader: (1) Garage List 2016 BMW M3 [0.00]	Maybe check the power steering pump? I know they usually will whine at higher rpm also but it may be worth checking out?
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12-02-2014, 08:30 AM	#18
335D Alpha Pappa Second Lieutenant 44 Rep 237 Posts Drives: 2011 335D Join Date: Apr 2014 Location: NY iTrader: (0)	I heard the smaller turbo whine for the first time. It was 21F outside. I only heard it at idle and it did increase pitch with rpms. Waited a minute to get the fluids warm before I left. Did not hear it when I got to work.
	Appreciate 0 Quote