A very bad day yesterday...

ladyavenue said:

I had it too with my SLK 230 AMG 1999. Cooler water was leaking into the automatic transmission. Don't drive it before you are sure. Automatic transmission repair is expensive.

Click to expand...

ladyavenue,

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So... finally I have time to share my experience...
After almost 6 months I found(hopefully) from where is all this oil in the water...
In december I had the cylinder head gasket replaced as it was damaged(and thought that from there is the oil in the water, also there were burned gases leaked into the water). Had also to grind the cylinder head with about 2mm(if I recall correctly).
The job was a succes, thankfully. Until this week I discovered again oil in the water when I was changing the supercharger oil and the crankcase gas hoses.

In the first post I mentioned a ”thermocouple”, this week I found that the correct term is oil cooler.
As the supercharger was off the engine the mechanic checked the oil cooler(one of his first thoughts in december), he discovered that the gaskets where affected and the oil cooler metal case was ”eaten” enough to allow engine oil get into water.
One of the previous owners also put some ”radiator sealing dust” in the water, the oil cooler was filled with these dust...
Tomorrow all the parts are ariving and the mechanic can finish the job. I pray that after this, I will not find oil in water again...

I have to mention that I am a ”bad” driver and I don't check the water/oil/etc. So from december until now(16.000km) I didn't checked the water not even once, I'm lucky that things didn't got worse... Please don't be like me... And under no circumstances put ”radiator sealing dust” in the water.