The MB anti-freeze myth BUSTED! - Mercedes-Benz Forum

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post #1 of 20 (permalink) Old 12-13-2007, 08:02 PM Thread Starter
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Exclamation The MB anti-freeze myth BUSTED!

so...everyone wants to know if their Benz has special anti-freeze. Good news...IT DOES!

DON'T USE THE GREEN STUFF!

Since the dawn of MB time those nutbags have over-engineered everything. The idea is to make sure every nut and bolt is in place for a reason and should not be messed with!

This is why you drive the best automobile in the world.

For some unsolved mystery the green stuff has always found a way to leak in most people's Benz.

Here's why:

MB anti-corrosive, anti-freeze agent (PN BQ1030002) is a nuetral compound. Nuetral, as in Ph level of 7. Conventional anti-freeze is a basic compound and has a higher Ph level up to about 10. Why does this matter? Think about it...a base is like slippery or soapy water. (((FYI: Acids and bases are corrosive. Obviously Ph level determines how corrosive.))) Does it sound so unbeliaveable that slippery, even slightly corrosive things will find their way through rubber or paper or even silicone sealant eventually? I don't think so.

Trust me...you don't want to go leak finding in a Benz...not fun.

So if you have the green stuff, do youself and your car a favor and flush it out soon.

Do it yourselfers - Open the bleeder at the bottom of the radiator and open the reservoir cap. Drain, then flush with water until there is little or no trace of green stuff.
Then screw the bleeder back in and fill to spec with water this time adding MB cleaning compound PN A0019862171 (I would reccomend using this stuff durring normal flushes...it's awesome). Close the reservoir cap and start the car. Let it heat up as the detergent will begin to foam up an cleanse. Don't leave it running in there too long as pressure is slowly building. Turn off the car after a few minutes and drain. Then flush with water until there is no more soap.

When adding MB anti-freeze mix 50/50 and top off with water.

Hey, I realize OEM Benz usually means more $$$ but you get what you pay for. Dont be cheap...trust me you will regret it. You are driving the best car in the world...treat it that way. Besides, I'm sure there are discounts out there -PM me I can help you out!

Quick factoid(evedence of MB greatness): During Daimler Chrysler merger nightmare MB reliability dropped as Chrysler was magically ressurecting itself. Benz had been delegating most of the research and development towards Chryler. Outcome? Chrysler 300...car of the year. Reason: IT'S A BENZ! BTW the Crossfire is a glorified SLK!!! (M112 engine, 722.6 transmission...even the interior is the same!) So YEY! Chryler is back on their feet again, thanks to Benz, and as of this year on their own. Daimler took the loss and dumped Chrysler in the beginning of 2007. Second outcome? The new S, CL, and C Classes. Benz is back.

Mit Frendlichen Grüßen,
Sarasota Joe
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post #2 of 20 (permalink) Old 12-14-2007, 06:09 AM
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Thanks for the information Joe. Do you know how often I should change the MB coolant in my 2001 E320? I bought it in 2006 with 53,000 miles, it now has 67,000 and the antifreeze has not been changed since I have owned it. Vielen herzlichen danke, Musikmann

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post #3 of 20 (permalink) Old 12-14-2007, 08:31 AM
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Good to know.

S.


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post #4 of 20 (permalink) Old 12-14-2007, 08:56 AM
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Does it have a 112 engine? Sounds high to me but the Euro service sheet says every 15 years or 250 000 km. But there is an antifreeze and anticorrosion agent test every 2 years.
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post #5 of 20 (permalink) Old 12-14-2007, 09:12 AM
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You mean running the green stuff for last 20 years in 25-years old Mercedes can shorten it's life?

sorry, couldn't resist
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post #6 of 20 (permalink) Old 12-14-2007, 09:29 AM Thread Starter
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touché Kajtek1...nice

Every three years musikmann. Benz doesn't spec mileage...but use your judgement. If you drive more than the average 15K a year you might want to do it sooner!

Mit Frendlichen Grüßen,
Sarasota Joe
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post #7 of 20 (permalink) Old 12-14-2007, 09:44 AM
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post #8 of 20 (permalink) Old 12-15-2007, 08:09 AM
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Quote:
Originally Posted by Kajtek1 View Post
You mean running the green stuff for last 20 years in 25-years old Mercedes can shorten it's life?

sorry, couldn't resist
Instead of using MB Flush Additive, may I , dare if say, use the OTHER Green Stuff?
Ummm, AJAX? hehehe.

Ok i'm being malicious. Couldn't resist! I just felt the "A" word coming up!

Charles
New York City, NY
Richmond County

United States of America
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post #9 of 20 (permalink) Old 12-15-2007, 08:30 AM
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On the 103 motor and probably others as well, there is a coolant valve on the exhaust side of the block. It works like a brake bleeder valve. Just open it up and let the block drain itself too. With the radiator and block drained you can be sure 90% of the "green stuff" is gone. If you flush with clean water a couple of times, you won't have any of the old stuff in there any more. Just did this to mine two weeks ago and used MB antifreeze. I could swear a heard the motor go "ahhhhh..."

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post #10 of 20 (permalink) Old 12-15-2007, 11:29 AM
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Quote:
Originally Posted by sarasotajoe View Post
touché Kajtek1...nice

Every three years musikmann. Benz doesn't spec mileage...but use your judgement. If you drive more than the average 15K a year you might want to do it sooner!
You mean it is "every three years" for the 112 engine or was it a different engine? Or is the service guide different for the US? The Euro service guide says every 3 years for the 111 engine in a W210 (on multiple other engines that were not used on a W210 E320). But for the W210 E320 with 112 engine, the Euro guide says "every 15 years". A copy below, always better than a few random words from one forum member.

Last edited by Diesel Benz; 01-23-2008 at 10:46 PM.
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