We can't use regular antifreeze?! Truth or scare tactic? - Page 2 - Mercedes-Benz Forum

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post #11 of 21 (permalink) Old 10-07-2010, 02:36 PM Thread Starter
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Wasn't a matter of choice...

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Originally Posted by Mercedes Benz of Florida View Post
MB's are "sensitive suzie's" so Yes an unauthorized antifreeze mix "MIGHT" hurt your MB. But you were in an Emergency, so anything had to suffice.
Afterwards flush out the non spec antifreeze and move on with life.
Check Your Owners Manual. There is a Flyer with it. It DOES specify MB Fluids, Oils, Antifreeze, but not ONLY that. It actually does authorize and sanctify "equivalents". I have used Xerex G-05. It meets MB's specs.
Believe me, I know how this goes. I read the manual before I added some but it gave no hints as to what not to put in. Its going for a flush n' fill tomorrow and they said my car will be ok so long as it was a low corrosive formula antifreeze, which it is. The dilemma was that the car was low on coolant even though it wasn't heating up past normal as I drove.
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post #12 of 21 (permalink) Old 10-07-2010, 11:04 PM
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Sounds like different coolant was easier for you to get than distillate water?
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post #13 of 21 (permalink) Old 10-07-2010, 11:14 PM Thread Starter
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Question No idea what was in it already...

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Sounds like different coolant was easier for you to get than distillate water?
I thought water alone is not enough for coolant if its down, I felt if it was low it needed more of the real mccoy. Since there was none to be seen in the jug I had no idea what kind of mix was in there, nor how much water was part of that. Either way its getting a flush n' fill with good ol' MB coolant first thing in the morning, I left the car at the mechanic's overnight so I can get it back good and early. I mean I thought that's what people do when they are skint, fill up the jug with water when it needs coolant and then wonder why they got to keep filling it up as water boils off too readily.

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post #14 of 21 (permalink) Old 10-08-2010, 03:04 PM
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There are several antifreeze formulas meeting MB Sheet 325.0. In the US, Zerex 05 y G48 are the ones listed by Bevo Daimler.

As for the use of other formulas, account should be taken to the materials involved in radiators, engine, etc (aluminum, iron, magnesium, carbon steel, copper, plastic polymers, rubber...). Specially, knowledge should be had of the reaction of the different materials, e.g.: aluminum forms a sacrificial coat to protect it from rusting (gray film), this, with the fluid circulating, can be carried along the galleries or the serpentines in the radiators.

Why be penny wise, pound foolish? Or is it plain laziness?

A car would show appreciation for preventive maintenance by never leaving his owner stranded.

Defensive Driving is never having to say you're sorry: a true love story between man and machine.
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post #15 of 21 (permalink) Old 10-08-2010, 03:07 PM Thread Starter
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Playing it safe

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There are several antifreeze formulas meeting MB Sheet 325.0. In the US, Zerex 05 y G48 are the ones listed by Bevo Daimler.

As for the use of other formulas, account should be taken to the materials involved in radiators, engine, etc (aluminum, iron, magnesium, carbon steel, copper, plastic polymers, rubber...). Specially, knowledge should be had of the reaction of the different materials, e.g.: aluminum forms a sacrificial coat to protect it from rusting (gray film), this, with the fluid circulating, can be carried along the galleries or the serpentines in the radiators.

Why be penny wise, pound foolish? Or is it plain laziness?
Its in the shop right now being flushed of whatever the hell was in there to be replaced with proper MB coolant.
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post #16 of 21 (permalink) Old 10-08-2010, 03:51 PM
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I don't trust mechanics in general and I don't trust they will do good flushing even harder.
Just like with engine oil and other fluids -there is no way to drain all the stuff. Even if you remove engine block plugs, you'll be fortunate to get close to 90%. Than proper flushing takes running the engine at high operational temperatures (with heater on). There is no way to do it in the shop.
I changed the coolant on my Ford this summer. Bought 6 gallons of distillate water, started with draining, refilling with water plus recommended radiator flush, drove for a day, drained, refilled with water, drove for a day, drained, refilled, drove, drained and than I consider it ready for new coolant. My new coolant was fully mixable with other stuff. In critical contamination I would buy 2 more gallons of distillate water.

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post #17 of 21 (permalink) Old 10-08-2010, 07:57 PM Thread Starter
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Cool story bro

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Originally Posted by Kajtek1 View Post
I don't trust mechanics in general and I don't trust they will do good flushing even harder.
Just like with engine oil and other fluids -there is no way to drain all the stuff. Even if you remove engine block plugs, you'll be fortunate to get close to 90%. Than proper flushing takes running the engine at high operational temperatures (with heater on). There is no way to do it in the shop.
I changed the coolant on my Ford this summer. Bought 6 gallons of distillate water, started with draining, refilling with water plus recommended radiator flush, drove for a day, drained, refilled with water, drove for a day, drained, refilled, drove, drained and than I consider it ready for new coolant. My new coolant was fully mixable with other stuff. In critical contamination I would buy 2 more gallons of distillate water.
Its not a problem anymore they flushed it and filled it up with MB coolant.
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post #18 of 21 (permalink) Old 10-09-2010, 07:49 AM
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Here is a good article on coolant types*. It will help in understanding why one just can't substitute or mix coolant types willy-nilly without potential problems creeping up. In order to illustrate this point, the article uses Fords current move away from G-05 coolant to Dexcool coolant and how engine parts need to be redesigned and use different materials. Some Ford motors are being retired from production rather than going through the expense of a redesign.

Since the Mercedes Benz recommended type of G-05 is easy to get, it behooves one to use it. I just changed the coolant on a 2001 E320, and I used G-05 (in this case Ford Premium Gold Coolant, which is G-05 - it's cheap - $14).

Rumple

*the article is a .pdf download.
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post #19 of 21 (permalink) Old 10-20-2010, 12:48 AM Thread Starter
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Found the culprit!!

Anyway its not the hoses or the radiator as to why I was down on coolant, it was that little sensor that rests about the main hose at the bottom of the overflow jug. Drip by drip a little coolant leaks out until the fluid volume is underneath that sensor. I duct-taped all around that and added water to the remaining MB coolant I gained after my flush n' fill. I know this is not an ideal solution but it should hold me until I can get into my mechanic for either a new jug, new sensor, or (best case scenario) a new seal or whatever is letting out coolant around that sensor.
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post #20 of 21 (permalink) Old 10-20-2010, 09:15 AM
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Duct tape will help absolutely nothing on holding 15-20 psi pressure. You will be better off driving with the cap removed so the pressure will not build up. Summer is over, so not likely your engine will go over 100C.
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