W124, sounds like a fan.

[mercmadjim]

I have just purchased an old 300te 1989, and when I put the ignition on I can hear what sounds like a fan running in behind the glove box area, it's not the heater fan, that makes a different noise....it sounds like the cooling fan on my computer!!!
Any ideas?? thanks.

 

[Myros]

I think there is a cooling fan for the ECU

but it's so long since i had my head under a 124 bonnet i don't trust my memory any more.
Isn't there also a fan for the thermostatic heater sensor. I'll have a shufti on the russian site and post back.
Enjoy that 300 Te experience.i still miss ours.

http://www.detali.ru/cat/oem_mb2.as...GM=717.430&CT=F&cat=506&SID=54&SGR=075&SGN=04

http://www.detali.ru/cat/oem_mb2.as...GM=717.430&CT=F&cat=506&SID=83&SGR=045&SGN=01

 

[Bolide]

That noise is - a fan running behind the glove box

It's the air sampling fan. It runs so the heating system knows what temperature the inside of the car is. The fan is connected to a rubber tube that runs up the n/s A pillar and across the headlining to the little grille by the sunroof switch in the roof console

Nick Froome
www.w124.co.uk

 

[television]

That noise is - a fan running behind the glove box

It's the air sampling fan. It runs so the heating system knows what temperature the inside of the car is. The fan is connected to a rubber tube that runs up the n/s A pillar and across the headlining to the little grille by the sunroof switch in the roof console

Nick Froome
www.w124.co.uk

It takes a 124 fan to know that

 

[mercmadjim]

Gentlemen I thank you all, I have just spoken to the previous owner who said it has been like that for 12 months, and it does not affect the running......looks like a case for turning the stereo up

 

[Jay Gee]

Gentlemen I thank you all, I have just spoken to the previous owner who said it has been like that for 12 months, and it does not affect the running......looks like a case for turning the stereo up

If the previous owner only noticed it 12 months ago,would that maybe suggest that the bearings/bushes are starting to show signs of wear? Just an observation,I have no idea how easy or otherwise it is to gain access to this fan.

 

[Bolide]

As the car has a glovebox, not an airbag, it should be a little easier than on a later car. But it won't be easy as it's quite busy back there

I've seen cars with a noisy fan and they're just the same a few years later - I wouldn't assume the noise implies imminent failure

There's a name for that fan but I can't remember it. Anyone?

Nick Froome
www.w124.co.uk

 

[television]

137 in the link

http://www.detali.ru/cat/oem_mb2.as...GM=717.430&CT=F&cat=506&SID=83&SGR=135&SGN=02

 

[bigasotonuk]

Hi,
I believe the fan running all the time is normal and its the bushes/bearings have gone, making it noisy.
http://www.mercedes-benz-parts.co.u...ls&flypage=shop.flypage&option=com_virtuemart

That price was gainned using the link Malc put up.
Mine went in the 202 but was a high pitched squeal so i replaced it with new.
My friends went in his 202 and he just disconnected it, till he replaced it later, a year on and its still not done so it could,nt of made a lot of difference, to the operation of the heater.

 

[mercmadjim]

Hi,
I believe the fan running all the time is normal and its the bushes/bearings have gone, making it noisy.
http://www.mercedes-benz-parts.co.u...ls&flypage=shop.flypage&option=com_virtuemart

That price was gainned using the link Malc put up.
Mine went in the 202 but was a high pitched squeal so i replaced it with new.
My friends went in his 202 and he just disconnected it, till he replaced it later, a year on and its still not done so it could,nt of made a lot of difference, to the operation of the heater.

I was going to ask if I could disconnect it.....thank you

 

[teddycatkin]

IF you can get to it -WD40 is your temp fix answer?

 

[mercmadjim]

IF you can get to it -WD40 is your temp fix answer?

I think it's too noisy for WD40

 

[television]

WD40 is not a lubricant and never has been, yet people spray it onto electronic parts and sensors, into door locks and everywhere else, once it dries you are worse off than before you started in most cases

 

[mercmadjim]

I tried silicone spray with no success:sad: it is now disconnected