C240 m112 engine dead??? please see video

[marschall]

Guys my car was giving vibrations so i changed the engine mounts and gear mounts alongwith the fuel filter,coolant,,,,,,,,after 2 months i started getting vibrations again during start especially during the first start or when the vehicle is cold.Star Diagnostic shows p0302 p0300 cylinder 2,3,5 misfire damages twc.
At night this is what happened please check the video the car refuses to start.
what is the issue coils? plugs? gasket blown?

https://www.youtube.com/watch?v=DZ7s-PfDkkU&feature=youtu.be

[YOUTUBE]https://www.youtube.com/watch?v=DZ7s-PfDkkU[/YOUTUBE]

 

[C36fan]

Guys my car was giving vibrations so i changed the engine mounts and gear mounts alongwith the fuel filter,coolant,,,,,,,,after 2 months i started getting vibrations again during start especially during the first start or when the vehicle is cold.Star Diagnostic shows p0302 p0300 cylinder 2,3,5 misfire damages twc.
At night this is what happened please check the video the car refuses to start.
what is the issue coils? plugs? gasket blown?

https://www.youtube.com/watch?v=DZ7s-PfDkkU&feature=youtu.be

<a href="http://www.youtube.com/watch?v=DZ7s-PfDkkU"]https://www.youtube.com/watch?v=DZ7s-PfDkkU[/URL]">YouTube Link</a>

It looks like is spinning too fast it might have a blown gasket or a hole in a piston or even a dropped valve .
But without taking it to a proper specialist it's just guessing game.

 

[carat 3.6]

Sounds like it's got no compression...

 

[marschall]

It looks like is spinning too fast it might have a blown gasket or a hole in a piston or even a dropped valve .
But without taking it to a proper specialist it's just guessing game.

Now that scares me a blown gasket or piston hole is gonna be costly

 

[marschall]

Sir would like to update you on the situation i came back home yesterday after almost 45days plugged the battery and the car started had heavy misfiring vibration at first but the engine picked up.Next morning we did the fol work.
1.Changed all sparkplugs (Bosh) the old ones were filthy and two of them were wet, we couldnt make out if it was fuel or water.
2.Throttle body was full of gunk loads of deposits gave it a thorough spray.
3. Took of the whole injector rail and checked the injectors in the machine 3 were not working effeciently,so we cleaned them via some waves idk what that machine did but it wasnt done by petrol.
4.Changed the airfilter as well.
The end result is that the car's response has increased sufficently we did a diagnostic check aswell and no codes were shown.The acceleration the smoothness has really come back.
Now back to the issues the engine mounts i had previously installed were of Febi and complete fake i have ordered Lemforder so i am still getting the slightest of vibrations during first start but if i switch it off and do a second start they are gone.
Some times during idle i can feel this grinding buzz like a cellphone on vibrations on the steering first for 5sec then short vibrations of 2 secs each its like
MMMMMMMMM mmmm mmm mm gone