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6 Series
The BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 10-30-2012, 07:37 AM
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Mulchman Mulchman is online now
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Odd sound after startup.

Shortly after starting my car, while still in the garage I will hear what sounds like a kitten crying under my hood. Its a high pitched squeek that sounds like a kittens meow. Any ideas? Does not happen all the time.
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  #2  
Old 10-30-2012, 07:49 AM
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greco2000 greco2000 is offline
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Do you hear this sound when the A/C is turned on? When you hear it again, turn off your air completely and see if the sound goes away.
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  #3  
Old 10-30-2012, 11:41 AM
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Quote:
Originally Posted by greco2000 View Post
Do you hear this sound when the A/C is turned on? When you hear it again, turn off your air completely and see if the sound goes away.
Will do and report.
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  #4  
Old 10-30-2012, 04:43 PM
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Yorgi Yorgi is offline
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Might be belts, tensioner bearing, vacuum leak, vanos. Can you get someone to start the car for you while you stick your head under the hood?
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Old 11-01-2012, 11:23 AM
HerbP HerbP is offline
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You will here a air sucking sound from the air intake, until the engine goes into a closed loop program. The intake is just manually sucking unmetered air. This is usually on a cold morning start.
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  #6  
Old 11-01-2012, 11:58 AM
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I still need to stick my head under the hood when starting. It is not a belt or at least doesn't sound like one. Nor does it sound mechnical like VANOS. Vacuum is possible or the closed loop deal. I'll try to remember to check when I get home.
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  #7  
Old 11-01-2012, 05:20 PM
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pablo645 pablo645 is offline
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I believe I know that sound. I hear sometimes when I start my car and asked the dealer about it once. I was told it has something to do with the fuel pump priming up or something to that effect. SA said it's not anything to worry about but we'll see. I though it was from under the hood but it was from the backend but the sound seems to echo under the car.
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  #8  
Old 11-02-2012, 03:47 AM
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Of course now I can't replicate the noise. Will report back when I can.
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  #9  
Old 11-13-2012, 02:56 AM
garethparsonage garethparsonage is offline
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I get the same noise, after start up brief high squeak type sound from behind dash left side? I think its something to do with the fan motor, it has only started since the weather has gone cooler, not bothering me too much as its only for a few seconds
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  #10  
Old 11-13-2012, 04:05 AM
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It hasn't happened since I first posted...of course

Next time it does I will stick my head under the hood as I sould have the last time...

The fact that it has gotten cooler outside and I hear it less (or not at all) makes me wonder if greco2000 wasn't on to somthing with the A/C?
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