[dope626]

REPLACE THE SPARK PLUGS ON A 1990 300E. ALSO WHAT ARE THE BEST SPARK PLUGS AND WIRES I SHOULD GET, I HEAR DIFFERENT THINGS ALL THE TIME BUT IM JUST NOT SURE YET.:thumbsup:

 

[Jackd]

Replacing spark plugs is very easy on these engine with a normal spark plug socket.

Ideally you should get Bosch H9DC0 (hard to find, check with your local MB dealer) . Do not use a resistor spark plus

If need be, spark plug wires should be Bosch

 

[mountainredneck]

there is a champion equivalent that is very easy to find. i do not recall the part#

remember, change plugs with a stone cold engine or you risk hole deformaty.

 

[Inline6]

Spark Plugs: Champion-S10YCC, NGK-TR5GP/NG3186