All-St4r

Hi, i've had my check engine light be on for the past month, and just recently I got it checked out. The codes that were given to me were p0456 and p0203. I was told p0456 could just be a loose gas cap and is not much to worry about, but p0203 is caused by the cylinders misfiring. I opened up the engine and found there was oil where the coil pack sits. (2 of the 4 cylinders were filled with oil)
I have a 2005 c230 K, and the engine looks like this I do not know if this is a result from a loose spark plug, or there is something wrong with a seal of some sort. What would be the best way to approach this? Thanks a lot for any help!

04mbc230

uhhh.. do a tune up and change the affect parts; coil packs and plugs as a starter. Since you are at it, mind as well change the whole thing, it ensures a clear state of mind in the long run.

When as the last time you did a maintainence? What does it say you are due in for? Service A? B?

Glyn M Ruck

Either the cam box gasket is leaking or someone messed up with oil top up.

LILBENZ230

Given that you have an 05 with code P0456 you likely have a leaking fuel filler neck. That's very common on the 05s.

All-St4r

I am going to take it apart and see if I can find any leaks. I will also post some pictures soon too so hopefully that will help. Thanks

ambit

I've gotten oil in the spark plug closest to the front by being sloppy putting oil in the fill hole.

All-St4r

jiffy lube changed the oil for me about 4 months ago.

http://imgur.com/21MDv,Cr2Yi,KVTho#0

I have some pictures here of how much oil is in the second compartment. The first one also had oil, but I cleaned it out.

LILBENZ230

Jiffy Lube? WTFail.

Grey Rabbit

Hate to say it my friend but Jiffy Lube is your problem most likely. If you get the problem fixed, never ever go to jiffy lube or any fast in and out place. Either do it yourself or go to the dealer. How do you know if they even put the right oil in there? 0w-40 or 5w-40(hot weather states) synthetic ONLY (mobile one if possible). Good luck with the problem though.

capt_paul

I had the same problem with the oil leaking. It is not a result of oil topoff. I replaced the four seals around the spark plug recesses and the seal around the whole valve train cover in order to fix the problem. I did not have any codes, but the oil leaking was a concern, even though I didn't appear to require any oil adtion between the oil changes.

Glyn M Ruck

+1^ The gasket & plug seals are sold as a kit by places like RMeuropean.

All-St4r

thanks, I will look into it!