[W126 Coupe] Radiator Additive

[Camran Nassiri]

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.comTo: mbcoupes at mbcoupes.comDate: Tue, 19 Aug 2008 18:38:10 -0700Subject: 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 systemRegards, Axel J. Wulff610-731-5453 Cellular610-572-4611 Home


From: mbzman560 at hotmail.comTo: mbcoupes at mbcoupes.comDate: Tue, 19 Aug 2008 09:15:14 -0700Subject: [W126 Coupe] Radiator AdditiveDoes 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,Camran90 560SEC, 91 420SEL
_________________________________________________________________
Talk to your Yahoo! Friends via Windows Live Messenger.  Find out how.
http://www.windowslive.com/explore/messenger?ocid=TXT_TAGLM_WL_messenger_yahoo_082008
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/mbcoupes/attachments/20080820/ac9d4949/attachment.htm>