Hi:
I was in the process of changing out the plugs on my 99 C230K. This is the M111 motor on the w202 chasis.

The job was going well....

I got the first three plugs out fine. There are two plug boots and two coil packs, on top of the other two boots.

When I removed the second coil pack, the coil pack came unplugged from the boot. On the first coil pack everything come up together.

I cannot get the sparkplug boot off the plug. I tried some gentle pulling with
pliers, but did not want to damage the boot.

Any ideas? Is there a tool that can get inside the spark plug channel?

I plugged it back in, put the cover on and everything is running fine, but I have three new plugs and one old plug.



Note: the engine was somewhat warm when I did this, not too hot too touch and work on, but not overnight stone cold either.

Thanks