C55 coolant leak
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E55 AMG
C55 coolant leak
I have got a small coolant leak at the front of the engine which gets onto the belt which is damp and smells of coolant. What should I do? Would radiator stop leak products work? My coolant reservoir has been full for months so this leak is small but it smells. Here is a photo of the mess.
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The water pump is behind the pulley that is blurry in the photo, on the left. If it's not leaking from there, the other area where coolant flows is at the thermostat, more centrally located, where the upper rad hose connects. Check that out too. Best of luck!
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Oh, almost forgot - coolant also runs through the oil cooler, there are a couple lines there that lead to the water pump cover closer to the left/driver's side (but to the right in the picture) of the motor. Have a look at those as well.
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So basically I had a good look at the water pump, thermostat, and oil cooler. They are all clean. After another good look the worst area is near the bottom on the drivers side. 
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That looks like the A/C compessor that's leaking. AC refrigerant oil with dye is typically green. The coolant in these cars should be blue unless someone has changed it to green (which would be stupid).
And for the record, DO NOT use stop leak products! All they do is cause more problems clogging up all kinds of stuff, like small coolant passages and the thermostat.
And for the record, DO NOT use stop leak products! All they do is cause more problems clogging up all kinds of stuff, like small coolant passages and the thermostat.
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E55 AMG
The coolant is supposed to be blue? I looked at multiple clk55 and c55 cars locally and they all had green coolant. Also there is a coolant smell coming from the engine bay and filling my garage, It can't be the ac causing that smell.....
Last edited by Richardmozis; Jun 20, 2013 at 03:18 PM.
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My Mercedes coolant is orangey-yellow. But yeah, as 91RS said, the green is AC refrigerant, and it looks to be pooling at the AC compressor's pulley.
Can you see if the AC lines off the compressor are loose? Could be one of the rubber o-rings on the lines have blown.
Are you getting cold AC?
Can you see if the AC lines off the compressor are loose? Could be one of the rubber o-rings on the lines have blown.
Are you getting cold AC?
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2001 CLK55 AMG
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Thanks for the help guys. I should probably flush the green coolant and put in an MB one.
You guys are talking about the mess being the ac compressor. I do get ice cold ac in the car fast. The previous owner had the compressor replaced before I bought the car.....
You guys are talking about the mess being the ac compressor. I do get ice cold ac in the car fast. The previous owner had the compressor replaced before I bought the car.....
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Richard, did you get the leak sorted out?
I have to clarify my previous comments re: coolant (post #9). I was confused because my buddy had given me some spare Land Rover coolant in a Mercedes jug, and that stuff is orangey-yellow. I was reminded of this the other day when I picked up some genuine Mercedes blue fluid! Doh! Good thing I never put any of that into my AMGs!
I have to clarify my previous comments re: coolant (post #9). I was confused because my buddy had given me some spare Land Rover coolant in a Mercedes jug, and that stuff is orangey-yellow. I was reminded of this the other day when I picked up some genuine Mercedes blue fluid! Doh! Good thing I never put any of that into my AMGs!
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Richard, did you get the leak sorted out?
I have to clarify my previous comments re: coolant (post #9). I was confused because my buddy had given me some spare Land Rover coolant in a Mercedes jug, and that stuff is orangey-yellow. I was reminded of this the other day when I picked up some genuine Mercedes blue fluid! Doh! Good thing I never put any of that into my AMGs!
I have to clarify my previous comments re: coolant (post #9). I was confused because my buddy had given me some spare Land Rover coolant in a Mercedes jug, and that stuff is orangey-yellow. I was reminded of this the other day when I picked up some genuine Mercedes blue fluid! Doh! Good thing I never put any of that into my AMGs!
