Mercedes-Benz Forum banner
1 - 1 of 2 Posts

· Registered
86 560SEL
Joined
·
1,334 Posts
Get rid of those +4 spark plugs and put back the standard stuff on. The +4 is pretty much...

Get rid of those +4 spark plugs and put back the standard stuff on. The +4 is pretty much crap for older Benzs. They last longer but....many people have tried them and got rid of them.
 
1 - 1 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top