greyvan

When do they need to be change or when should they. Do I need a special tool? I have a 2001 E320 wagon,and they are difficult to get to.
Is there something I should know?

Franasia

every 100000 miles. There is one key tool needed: a special boot puller spanner (you can get from ohlord). The rest are simple tools such as a 3/8 ratchet with a couple of extensions, and a slim 16 mm (5/8") spark plug socket with rubber insert. Torque value is 28Nm. Some people do it very with torque wrench, some don't. I consider it important to torque them to spec. Hope it helps.

Cheers

greyvan

Thanks that is just what I needed to hear. What is ohlord, an automotive store?

Franasia

Sorry, did not realize you're a new member - welcome to the forum then. I have a 4Matic wagon also.

ohlord is a forum member. You can also find some excellent stickies and DIYs here:

http://www.benzworld.org/forums/w210...ain-drive.html

Cheers

tirona

sorry i couldn't resist

Rat

no, its some sort of God

anabase

or 100,000 miles--it's in the owner's manual.

Use Bosch or NGK 7090 plugs with the single side electrode--do not use multi-tip or any other snake-oil plugs, according to ohlord.

greyvan

Thanks I didn't realize NGK was OKay. Are Bosch Platinum 2 OKay?

Franasia

is the correct Platinum plug for the M112 engine. Stay away away from the other Bosch Platinum types. There have been bad reports by other members in the past.

Cheers

greyvan

Thanks, I would assume that's the single ground type. Hey I see on your car it says E320S4, what does the S4 stand for?

anabase

NGK 7090 single-side electrode platinum plug.
.039 gap, use no anti-seize, they are bivalent plated.
$3 each, and they'll last 100k.

Or Bosch 7422, about 4 bucks.

You'll be needing the 17mm Mercedes boot tool. You can get one of these from Ohlord.

Franasia

S is the designation for the wagon as the W is used for the sedan. So, S210 is a wagon and S4 stands for 4Matic wagon.

Cheers

Javys21

ohlord.

How can I buy the tool from you. I still have afew thousand miles left but I want to be ready!!!

ohlord

well past ready. The car is 8 years old and plugs were due to be changed 3 years ago.
Pm me for info

greyvan

Hi
I pulled a couple of plugs and they look just fine. My guess is someone changed them not to long ago, I got the wagon with 109k mi on it. I do have a pretty noticeable miss at idle, not really sure when moving along. What's a go way to locate the Problem? Is it common?
Help

ohlord

or at least the whole story.
Check the gaps. They could look fine and gap at 44tho.

greyvan

Hey,
What should the gap be? And if it is OK what would you look at next?
Thanks

ohlord

or .039tho in.
Toss in a can of seafoam brand injector cleaner into a half filled tank of fuel and drive till near empty then fill as normal with premium fuel.Never top off the tank.

Javys21

ohlord.

How can I get it from you, I PM you a few days ago.. Let me know

Thanks

ohlord

and it includes free phone support to talk you through the procedure.
That is if you need help.Extra tips and such make the job quicker and fewer busted knuckles