Hi,
I have a EC300 2008. With some strange enginge behavior. A couple of times i have experience suddenly power loss and a change in engine sound. First I thought i lost the silencer or the exhaus gasket. But they semes to be fine.
Then i notice that it can go back to normal if I do a couple of more runs. You can listen to the sound i the clips on you tube.
The first is very loud with bad power output.
https://youtu.be/82lFPtz-hPY
The other is normal power.
https://youtu.be/NRMCXnJ5rKQ
Between these clips i only did a 100m run.
What do you think can cause this?
Regards Mika