spark plug wire question, trans oil question
 

I have recently purchased a E320 , 1998 with 100,000 miles on it. I want to do an initial maintenance routine as a base line. I have changed the crankcase oil and used mobil synthetic, I attempted to change the spark plugs but after the first one, the wires are extremely difficult to remove, is there a special spark plug wire removal tool? Also, I want to replace the trans oil with Mobil synthetic trans lube, but the local dealer said only Mercedes oil can be used, is this so?

Regards,
Ray

Hi, Ray

yes there is a tool that grabs the spark plug boot and you pull it out. About $20. I bought it through the net, Matco Tools if memory serves me right.
Good luck and welcome

rotate!!!!!
 

prior to pulling on the plug wire,twist/turn the holder while it's on the plug.this will loosen it ever so little but very important

While you're shopping, pick up a small tube of die-electric grease.
Apply a small dab into each wire end, before you plug them in.
This will surely help getting them off next time. ;)

The dealer is correct about the transmission fluid.Have a dealer you trust or a good independent Mercedes mechanic change the fluid. It can be a little tricky especially checking the fluid level. The fluid is supposed to be lifetime fluid, but at your mileage, i would definitely have it changed.