Own a 98 E-320. jjust hit 150,000 and will do a spark plug charge before the fall. Any tips on what you guys prefer, using? thanks. Been tempted by some of the higher end NGK's but will need to re-gap to spec's of 0.032in ( 0.8mm ) Just a bit skeptical on messing with the tip of the plug. Appreciate any insight you might have.

 

Bosch has a plug with four electrodes that will last forever. I ran some of these in an Audi 100 for 150,000 miles and they were still going strong. You might also change your plug wires while you are in there.

Sam

 

Get the boot removal tool pm me $32,ngk 7090 plugs.039 gap.pm me for tips,no new wires needed

 

Some 98 manuals had a typo showing .032........039 is the correct gap,boot tool makes the job easier and saves damage to the plug wires. ohlord