C Class. W204 P0128 error Coolant Thermstat
So I cleared the error.... I have monitored the gauge while the error was on and after I cleared it.
There are no issues.
It warms up to optimal temperature just like it always has.
Left it overnight
Took it for a test drive.. It's cooling just fine..
The error has not come back
Bare in Mind we have been it was a unusually HOT day.
My QUESTIONS is this.
What could have happened and should I be concerned.??
Could it have just been a sensor malfunction.
It's not overheating??
And if it was really a should the engine light not come back on after my test drive this morning.
Last edited by Zubair86; Jan 27, 2019 at 01:15 AM. Reason: Type error


