Spark Plugs issues: 2011 MB C300 W204 3.0
#1
Newbie
Thread Starter
Spark Plugs issues: 2011 MB C300 W204 3.0
2 Days ago I Installed 6 brand new double platinum spark plugs in my 2011 MB C300 with the 3.0 engine. After installing the new plugs I started up the vehicle and it was running very rough. I turned it off and restarted it and it was fine. Driving around I encountered no issues. Now today it's running rough again and RPMs are going between 500 and 1,000 at idle in drive and in park. I took the cover and packs back off, checked all plugs and made sure they were torqued down to spec. Engine codes came up as "too rich in banks one and two" Has anyone else experienced something similar who can offer some incite?
The following users liked this post:
SeanMGibson1835 (08-08-2017)
#5
Newbie
Thread Starter
After cleaning the MAF sensor the problem has been resolved. I used K&N filters so make sure anyone using these filters takes the time to ensure they are not over oiled. These particular ones were overoiled from the factory.
#6
Super Member
This just reinforces my fear of K&N stuff.
#7
Super Member
For years there have been articles talking about how K&N filters' increased airflow has no benefit for the average stock motor and how they let in more dirt and lead to piston/cylinder wear. Good only for high volumetric race engines that get rebuilt every season or sooner.
Trending Topics
#8
Newbie
Thread Starter
For years there have been articles talking about how K&N filters' increased airflow has no benefit for the average stock motor and how they let in more dirt and lead to piston/cylinder wear. Good only for high volumetric race engines that get rebuilt every season or sooner.
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)