Ok, this is one for the record and the pros... Very well maintained, 130k reached and... PO306 - Misfire on Cyl #6 . (one of 4 MDS cylinders) I swap the coil with another cylinder. No change. - Coil eliminated. It goes to the shop. Change fuel injector - No change. Fuel injector...

I'm getting significant white exhaust smoke (the warmer the engine the more the smoke) when the engine goes from fuel saver mode to full displacement. I've just completed changing piston and rings in cylinder #6 after a Multiple Displacement Solenoid (MDS) failure due to mechanic using the...

Has anyone had issues with the MDS system. My 05 300C runs rough at constant throttle but when you ever so slightly increase throttle, it smoths out. Happens at 30 mph through 70 mph. Thinking it may be an issue with cylinder deactivation. Thoughts? Thank you in advance. PS engine will...

I have seen a few threads on the MDS system the Hemi 5.7 and how to disable it: I have read a mixed review on changing the viscosity/type of oil, I assume not everyone gets the same results down to ambient temperatures and driving conditions, i.e. a lot of short journeys will see the oil...

I just recently purchased a 2007 300C. Just curious if the 5.7L Hemi has MDS? Do all 300Cs come with this? Also, what would be the first thing you would upgrade with this car?

Hello everybody, I have been tirelessly searching for a hack or mod allowing me to see when the MDS was activated on my '06 300C. After trying repeatedly to access the "secret" EVIC menus and turn on the MDS notification, I came across this post...

Ok, generally I haven't had any serious issues with my 05 300C since it came off warranty 30k miles ago. Recently though, some strange things have been happening. I know it's not running right because you get used to what is normal for a car you've owned for a long time - you know what I mean...