Radiator - is it normal for the anti-freeze to decrease?
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Super Member
Joined: Jul 2008
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From: New York
Mercedes S55 AMG
Radiator - is it normal for the anti-freeze to decrease?
So I put some Mercedes Anti-freeze about 2 weeks ago, and it was filled to the top. (To the rubber lining where it is recommended.)
I opened up the radiator cap to check where the level was, and it had gone down about half an inch or so.
Is this normal? Does some of it evaporate? I see some white residue on my radiator tank area too. It's been very cold lately, so I am not sure if that causes it to act differently.
Or do I possibly have a minor leak?
I opened up the radiator cap to check where the level was, and it had gone down about half an inch or so.
Is this normal? Does some of it evaporate? I see some white residue on my radiator tank area too. It's been very cold lately, so I am not sure if that causes it to act differently.
Or do I possibly have a minor leak?
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From: Houston
2003 W211 E55, 2003 W220 S600
common problem on 03 cars - coolant leaks into transmission fluid system, because the transmission fluid is cooled via the radiator.
https://mbworld.org/forums/w211-amg/...s-lines-2.html
https://mbworld.org/forums/w211-amg/...s-lines-2.html
Last edited by shardul; Jan 18, 2010 at 06:16 PM.
Super Member
Joined: Jan 2008
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From: UK
E55K AMG
common problem on 03 cars - coolant leaks into transmission fluid system, because the transmission fluid is cooled via the radiator.
https://mbworld.org/forums/w211-amg/...s-lines-2.html
https://mbworld.org/forums/w211-amg/...s-lines-2.html
catch this problem early before you need a gearbox rebuild. Coolant fluid level dropping is not ok.
your SIG says 2001 model, is the car an S55 kompressor?
Thread Starter
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Joined: Jul 2008
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From: New York
Mercedes S55 AMG
It's not the kompressor engine, the 55 Naturally Aspired one.
I asked a mechanic today, and he said it could just be normal due to the temperature change - the level of the fluid can fluctuate a little bit if the car is warm or cold. Does that make sense?
I asked a mechanic today, and he said it could just be normal due to the temperature change - the level of the fluid can fluctuate a little bit if the car is warm or cold. Does that make sense?
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From: Queens, NY
04 w211 E55
When I installed my CM30 pump it had a little crack and it was leaking. I tried sealing it but I have my coolant light showing now. I saw the drip when I installed it and after sealing it stopped. I dont remember what I used to seal it 
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