Noise at start only
Thread Starter
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Joined: Aug 2003
Posts: 39
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From: Alberta, Canada
ML500 and A64.2 sport
Noise at start only
When it is cold I get a whistling noise which seems to come from under the dash on the driver's side. It goes away after a minute or so. Length of time depends on outside temperature.
It is quite loud and annoying.
Any idea as to what it can be?
It is quite loud and annoying.
Any idea as to what it can be?
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Joined: Nov 2001
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Mercedes-Benz
Re: Noise at start only
Originally posted by EgilML500
When it is cold I get a whistling noise which seems to come from under the dash on the driver's side. It goes away after a minute or so. Length of time depends on outside temperature.
It is quite loud and annoying.
Any idea as to what it can be?
When it is cold I get a whistling noise which seems to come from under the dash on the driver's side. It goes away after a minute or so. Length of time depends on outside temperature.
It is quite loud and annoying.
Any idea as to what it can be?
Thread Starter
Almost a Member!
Joined: Aug 2003
Posts: 39
Likes: 1
From: Alberta, Canada
ML500 and A64.2 sport
Originally posted by haild
its the fan on the left side of the dash, i had mine replaced about 1 month ago. The dealer knows what it is.
its the fan on the left side of the dash, i had mine replaced about 1 month ago. The dealer knows what it is.
Thread Starter
Almost a Member!
Joined: Aug 2003
Posts: 39
Likes: 1
From: Alberta, Canada
ML500 and A64.2 sport
Re: Re: Noise at start only
Originally posted by AlBoston
Sounds like a jet engine almost? Try popping the hood next time you start it and you should hear it pretty loud from the engine bay. It is probably the air injection pump (which makes a whining sound) which runs for about 30 seconds to a minute, longer if it is cold outside. A lot of people complain about the ECU fan which is located on the drivers side and the fan will sometimes make noises but usually that noise is continuous... I think it is one of those 2 possibilities, take it in to the dealer to be sure.
Sounds like a jet engine almost? Try popping the hood next time you start it and you should hear it pretty loud from the engine bay. It is probably the air injection pump (which makes a whining sound) which runs for about 30 seconds to a minute, longer if it is cold outside. A lot of people complain about the ECU fan which is located on the drivers side and the fan will sometimes make noises but usually that noise is continuous... I think it is one of those 2 possibilities, take it in to the dealer to be sure.
Thanks.
Will do.
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