Hi,
I changed the spark plugs in my 300. After wards, the engine warning light and ESP dash lights are on. The operation was pretty smooth: Remove the Intake Manifold then change the plugs. I replaced the NGK coppers with Bosch platnums. Ideas?

 

get the codes for the light to start with and then once u have that go back and replace the plugs with champion platinum plugs OEM stuff only.

 

Not sure what "get the codes for the light to start" means. Sorry

 

when the engine light is on there are codes stored for the issue at hand visit an auto parts store and they will hook a scanner up to it and give u the codes.