05 C230k 1.8L 6 speed Disappearing coolant
New to the forums as well as being a Benz owner. Been searching like a mad man for information to my issue.
Recently purchased at 188k, was already experiencing an overheating issue... now its drinking coolant faster than I can buy it. No leaks on the ground. No engine bay leaks (that I can see), car also is throwing misfire codes from all 4 cylinders (pending full tune up).
The car fan engages after about 10minutes of the car being started and has ran hot previously (no overheat just redlined).
Any ideas on where to search? I've came across the possibility of the transmission cooler lines being faulty seeing as The coolant literally DRAINS as the car is running.
Thanks in advance, happy holidays!




I was under the impression that the manual transmission cars did not have transmission cooler lines, but I could be wrong.
I suggest that you look at the oil filler cap and see whether there are any signs of coolant getting into the oil. There will be a substance that is often referred to as "mayonnaise" that is a tell-tale sign. If you have that situation, you may need to replace your head gasket.
Good luck and I hope it is nothing serious.
I was under the impression that the manual transmission cars did not have transmission cooler lines, but I could be wrong.
I suggest that you look at the oil filler cap and see whether there are any signs of coolant getting into the oil. There will be a substance that is often referred to as "mayonnaise" that is a tell-tale sign. If you have that situation, you may need to replace your head gasket.
Good luck and I hope it is nothing serious.




Are you planning to repair the car? I noticed Virginia license plates on your car. If you are in Central VA, I can suggest a shop that won't take advantage of you.
Definitely plan to keep. With that being stated, I am in the region and would love to check out your resource, highly appreciated.
The car was purchased from Auction. $800. I'm not deterred one bit! Are there any other applications that could possibly fit the 6 speed tranny in these vehicles? I'm aware its RWD... and the kompressor isnt really a powerhouse? Nonetheless. The current one will be repaired until I figure out the logistics of things.




Fortunately, you didn't pay much for the car so even if the repair is fairly expensive (which I'm fairly sure it will be) you will still have a nice car for less than the cost of 4 average car payments.
Good luck.
Agree, great looking car with factory xenon and a manual. Love it!
Last edited by BF_JC230; Nov 19, 2019 at 08:43 AM.
Trending Topics




The Best of Mercedes & AMG


