Coolant
08-04-2007, 10:43 PM
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Coolant
Hi,
I'm a newbie from Singapore.
For the engine cooling, is it a MUST to have the water mixed with anti-freeze coolant instead of having just 100% water?
It's pretty hot in Singapore & am not sure if it's not ok to have 100% water.
I'm a newbie from Singapore.
For the engine cooling, is it a MUST to have the water mixed with anti-freeze coolant instead of having just 100% water?
It's pretty hot in Singapore & am not sure if it's not ok to have 100% water.
08-04-2007, 10:57 PM
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1995 E320 SE, 162,000 Miles (Sold)
The coolant also contains corrosion inhibitors. You will have tons of rust and probably lose the heater core if you use plain water. I don't know if there would be any advantage in diluting the mixture or not, but corrosion inhibitor is important.
08-05-2007, 10:40 AM
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OK.
Just to confirm,
The MB owner's manual states the amount of anti freeze coolant to added into the system is 4.25 l for the 200E model engines.
The Haynes manual states the capacity of the engine cooling system is about 8.5 l.
Does it mean that the mixture of anti freeze coolant to water in the cooling system would be 50/50?
I'm asking cos the owner's manual also mentioned that too much of anti freeze coolant in the mixture would result in heat dissipation & I'm wondering if 50/50 ratio is too much as it is not specifically mentioned?
Just to confirm,
The MB owner's manual states the amount of anti freeze coolant to added into the system is 4.25 l for the 200E model engines.
The Haynes manual states the capacity of the engine cooling system is about 8.5 l.
Does it mean that the mixture of anti freeze coolant to water in the cooling system would be 50/50?
I'm asking cos the owner's manual also mentioned that too much of anti freeze coolant in the mixture would result in heat dissipation & I'm wondering if 50/50 ratio is too much as it is not specifically mentioned?
08-05-2007, 10:48 AM
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1995 E320 SE, 162,000 Miles (Sold)
OK.
Just to confirm,
The MB owner's manual states the amount of anti freeze coolant to added into the system is 4.25 l for the 200E model engines.
The Haynes manual states the capacity of the engine cooling system is about 8.5 l.
Does it mean that the mixture of anti freeze coolant to water in the cooling system would be 50/50?
I'm asking cos the owner's manual also mentioned that too much of anti freeze coolant in the mixture would result in heat dissipation & I'm wondering if 50/50 ratio is too much as it is not specifically mentioned?
Just to confirm,
The MB owner's manual states the amount of anti freeze coolant to added into the system is 4.25 l for the 200E model engines.
The Haynes manual states the capacity of the engine cooling system is about 8.5 l.
Does it mean that the mixture of anti freeze coolant to water in the cooling system would be 50/50?
I'm asking cos the owner's manual also mentioned that too much of anti freeze coolant in the mixture would result in heat dissipation & I'm wondering if 50/50 ratio is too much as it is not specifically mentioned?
08-05-2007, 11:28 AM
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W124
Make sure you use the right stuff as well. MBs are fussy on antifreeze.
Although there are some makes that are cheaper than MB and seemingly to the same spec it's probably best to stick with genuine stuff. The price difference is tiny and your waterpump/headgasket life could be shorter if you use the wrong stuff.
Although there are some makes that are cheaper than MB and seemingly to the same spec it's probably best to stick with genuine stuff. The price difference is tiny and your waterpump/headgasket life could be shorter if you use the wrong stuff.
08-05-2007, 12:22 PM
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1996 W124 E320 Coupé, 1990 W124 300E twin turbo, 1991 W126 300 SE, 1984 Ford Capri 2.8i
I'll second that. Apparently, MB coolant is pH neutral and I have seen others more expert than I am say that it matters particularly for the non-metals in the cooling system.
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08-05-2007, 12:47 PM
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95 E320 Cabriolet, 108K
Besides the lack of corrosion protection, running 100% water will have a lower boiling point. This results in nucleant boiling and cavitation that can destroy aluminum heads from the inside-out, plus the vapor blanket gives poor thermal transfer. I've seen warranty returns from Texas where owners ran 100% water and the heads are destroyed. Use a 50-50 mix.
