still losing coolant
07-01-2019, 12:53 PM
#1
Senior Member
Thread Starter
still losing coolant
So the CLK550 is still losing coolant. And I keep getting like 1% glycol in oil when I have it analyzed.
I changed the gasket on the plate exchanger but still have to add coolant.
I read about the radiator problem, but isn't that just for transmission and glycol mixing?
Is this a blown head gasket?
I changed the gasket on the plate exchanger but still have to add coolant.
I read about the radiator problem, but isn't that just for transmission and glycol mixing?
Is this a blown head gasket?
07-01-2019, 10:59 PM
#2
MBworld Guru
You should not have the Valeo radiator issue on a MY2007. My guess is that your coolant expansion tank is leaking. The seal between the two halves (the black top section and semi-transparent bottom) can leak.
07-01-2019, 11:41 PM
#3
Senior Member
Thread Starter
That's what I hoped was the problem, it's a new tank, cap, and sensor.
Also:
Cam solenoids, coils, plugs. Was getting a code for the solenoid but after the replacement all is good. No codes at all.
The oil cap is nice and clean.
The car still has a rough idle. Seems to be worse when cold.
Also:
Cam solenoids, coils, plugs. Was getting a code for the solenoid but after the replacement all is good. No codes at all.
The oil cap is nice and clean.
The car still has a rough idle. Seems to be worse when cold.
Last edited by Kelvin Bellrose; 07-01-2019 at 11:45 PM.
