[W126 Coupe] Heater noise

[Markus Meyer]

Yup, that's how I do it too.  The 3 rightmost buttons are the fan speed
buttons, I didn't reference them when I talked about the 5 buttons below.
Fan speed is low, auto, high, going from top to bottom, so that should have
no effect on it being on or not.

Markus

On Wed, Jan 6, 2010 at 5:05 PM, Camran Nassiri <mbzman560 at hotmail.com>wrote:


> Thanks Markus, I was just pressing the O botton in and the right three

> vertical buttons, the "auto" button was pressed in.  I was trying to turn it

> off (by pressing in the O botton) after I started the car.  Now I'll make

> sure everything is off before start the car.  I'll let you know what

> haapens.  Once it gets a little warmer I'll take the cover off and see if I

> can lubricate the fan that is making the noise.

>

> Thanks,

> Camran

>

>

>

>

> ------------------------------

> Date: Wed, 6 Jan 2010 13:47:18 -0500

> From: markusfmeyer at gmail.com

> To: mbcoupes at mbcoupes.com

> Subject: Re: [W126 Coupe] Heater noise

>

>

> Camran,

>

> How do you turn the heating system off?  Might sound like a silly question,

> but, there is a way to press the buttons such that all are in or all are

> out.  The only way I found to truly shut it off is to have the first 4

> buttons (from left to right) "out", and the last button "in".

>

> There are two motors actually - a blower motor under the glovebox that

> circulates the air through the various ducts in the car.  Then, there is

> another aspirator motor that sits to the right of the glovebox which pulls

> air to the overhead interior temp sensor to tell the system whether it needs

> to heat or cool at that moment.

>

> Markus

>

>    On Jan 6, 2010, at 12:30 PM, Camran Nassiri wrote:

>

> Ever since the cold weather has hit our area (below 32 degrees) when I

> start the car from a cold start a screeching noise, like fan turning, comes

> from under the dash in the passenger compartment.  As soon as the car heats

> up a little (after 5 minutes or so) then the noise stops.  The noise is

> there even if I turn the heating/cooling sustem off.  Any ideas?

>

> Thanks,

> Camran

> 90 560SEC, 91 420SEL, 80 240D

>

>

>

>

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