[W126 Coupe] Radiator Additive

[Steve Nervig]

Just a clarification so as to clear up any confusion - when Alex said  
'dishwater' detergent, I think he means the type of detergent you  
would put into an automatic dishwasher, which is a non-foaming type of  
detergent; as opposed to handwashing dish soap, which will suds up  
(which you don't want).

The alkaline cleaner mentioned, is a heavy-duty detergent that could  
be used in place of Alex's dishwasher detergent step.

Steve


On Aug 20, 2008, at 8:42 AM, Camran Nassiri wrote:


> Hi Steve- no oil in the system, however as you and Alex suggested  

> I'll try the recommended steps.

>

> Thanks,

> Camran

>

>

> From: dakota at mac.com

> To: mbcoupes at mbcoupes.com

> Date: Tue, 19 Aug 2008 18:38:10 -0700

> Subject: Re: [W126 Coupe] Radiator Additive

>

> Oil in cooling system? After repair, use Alkaline cleaner, Disodium  

> trioxosilicate, pentahydrate.

> Part number is 001 986 21 71 (500 grams)

> Scale in cooling system? Use Citric Acid at 100 grams per liter.

> Part number is 000 989 10 25 (500 grams)

> Steve

>

>

> On Aug 19, 2008, at 5:45 PM, Axel Wulff wrote:

>

> Camran,

>

> If you are worried about your cooling system, an additive is not  

> going to help.

>

> I'd recommend a cooling system flush, replacing the thermostat,  

> checking the condition of the hoses and replacing the radiator cap.

>

> A cooling system flush is rather involved:

> - Drain the system (lower radiator hose is a good spot)

> - Run the system with water and dishwater detergent for 1/2 hour

> - Drain system and flush with water until water comes out clean

> - Fill with water and citric acid (MB sells this, you can also get  

> it at a pharmacy)

> - Run for 1/2 hour

> - Drain and rinse until water comes out clean

>

> Make sure the heater is set to max heat and defrost so that you  

> clean out the heater block. You may also want to clean out the  

> monovalve, a lot of crud seems to collect around it.

>

> Even if an additive was able to loosen the crud and build-ups, you'd  

> still need a flush to get it out of your cooling system

>

> Regards,

> Axel J. Wulff

> 610-731-5453 Cellular

> 610-572-4611 Home

>

>

>

> From: mbzman560 at hotmail.com

> To: mbcoupes at mbcoupes.com

> Date: Tue, 19 Aug 2008 09:15:14 -0700

> Subject: [W126 Coupe] Radiator Additive

>

> Does anyone have a suggestion of some sort of radiator additive that  

> could clean out (even partially) the water jets in a 420SEL engine?   

> My 420 SEL with 120K miles is beginning to over heat (the gage goes  

> up to the line between 80 and 120) and I am not sure if a new  

> radiator or cleaning the water jets in the engine would help.

>

> Thanks,

> Camran

> 90 560SEC, 91 420SEL

>

>

> Talk to your Yahoo! Friends via Windows Live Messenger. Find Out How  

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/mbcoupes/attachments/20080820/9083c6dd/attachment.htm>