[W126 Coupe] FW: Anti Freeze Change Dilemma

[Markus Meyer]

You need to give it time to bleed itself through, as you aren't going to get
that much antifreeze in there super quick.  I always fill up the reservoir,
then grab the top radiator hose and squeeze it until I hear the fluid being
sucked through.  I'd be careful running the engine for too long until you
get the right amount of fluid in there.  Hopefully your thermostat wasn't
stuck closed and not letting fluid flow through?  I've never done it your
way draining the block so not sure how much fluid is in there.

Markus

On Fri, Oct 23, 2009 at 5:40 PM, Michael de Holl <mdeholl at ptd.net> wrote:


>  Thanks everyone for your input on getting the antifreeze block drain

> plugs out. I did get them out and drained the system (radiator & engine

> block).

> Now I'm trying to fill the system back up through the reservoir. I'm

> filling the reservoir up to the top, starting the engine, turning the

> defrost on high, and heating up everything until the auxiliary fan comes on.

> Allow to cool down than refill. Problem is I can't get any heat from the

> climate control (defrost or regular heat). Seems like I should be putting in

> a lot more coolant mix. I have not put in as much as I got out. Any

> suggestions?

>

> ----- Original Message -----

> *From:* Markus Meyer <markusfmeyer at hotmail.com>

> *To:* mbcoupes at mbcoupes.com

> *Sent:* Friday, October 23, 2009 9:15 AM

> *Subject:* [W126 Coupe] FW: Anti Freeze Change Dilemma

>

> A couple of helpful threads about draining the coolant/flushing with citric

> acid, etc:

>

>

> http://www.benzworld.org/forums/w126-s-se-sec-sel-sd/1474108-antifreeze-drain-fill.html

>

>

> http://www.benzworld.org/forums/w126-s-se-sec-sel-sd/1446652-c126-w126-water-pump-r-r-8.html

>

> Markus Meyer

> 484-919-9762

> *www.meyerprobateproperties.com*

>

>

>

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

> From: diefenbach at kingcon.com

> To: mbcoupes at mbcoupes.com

> Date: Fri, 23 Oct 2009 08:39:50 -0400

> Subject: Re: [W126 Coupe] Anti Freeze Change Dilemma

>

> Mike - Markus and Jonathan have the right idea about leaving the block

> drains alone and flush with water.  Make sure you leave your heat temps. on

> high to circulate all the old stuff out of the car.

>

> Dick

> Danville, VT

>

>

> Mike,

>

> I wouldn't bother, honestly.  I know someone who did this and it turned

> into quite a nightmare.  I'd simply drain the radiator, refill with water,

> run the car for a bit, then drain it again and refill with 50/50.  If you

> really want to go nuts, you can do the acid flush, but I've also heard

> cautions on doing that as it could loosen things and clog the system.

>

> Markus Meyer

> 484-919-9762

> *www.meyerprobateproperties.com*

>

>

>

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

> From: mdeholl at ptd.net

> To: mbcoupes at mbcoupes.com

> Date: Thu, 22 Oct 2009 20:48:33 -0400

> Subject: [W126 Coupe] Anti Freeze Change Dilemma

>

> I suspect its been 4 or 5 years or longer since the antifreeze has been

> change on my 1991 SEC. I have the car up on ramps, new MB antifreeze ready

> to add. My dilemma is I can't get the engine block drain plugs loose to

> properly drain all the fluid. If I'm reading the Service Manual correctly

> the location of the plugs correspond to a 6mm allen socket plug. I have the

> plugs drenched with liquid wrench. Any suggestion how to get these buggers

> out?

> Thanks Mike

>

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