Changing Spark Plugs
(1) What is the interval for changing spark plugs? 30K, 60K, 90K ? the answers seem to be all over the map
(2) What type of plugs that should be used? OEM or ???
(3) How easy is it to change plugs? any special tools?
(4) where can I find step-by-step instructions, with pictures?
Your input is greatly appreciated
Order plugs here...
Remove the air tube that crosses over the motor in the back.
Take off the black cover that runs down the center of the top of the motor.
All 6 spark plugs are in a row with the 3 coils on every other one and a plug wire on the others.
Change them every 30K.

Last edited by E-Klasse; Mar 15, 2005 at 01:14 PM.
Search this forum for lots of help on installing them. It's as easy as changing 6 lightbulbs. You'll need to buy a long socket extension in order to get to the plugs. (buy the 10 inch model just to be safe.) Also, buy some boot lubricant to put on the ceramic part of the plug so the connector doesn't stick next time you change them.
Go ahead and yank the engine cover off, it's one of the easiest jobs you can perform and there's really nothing you can do to mess it up...
Oh and you may want to change the connector harness while your at it, that's around $100.
Best Regards
Spark Plugs [/B]
Premium Class Iridium plug 5303 IK16 0.043 $11.99 [B]
Premium Class Double platinum 3275 PK16PR-L11 0.043 $8.00
Regular Class Traditional spark plug 3143 K16PR-L11 0.043 $2.24
http://www.densoproducts.com/
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Has anyone changed plugs on a 98 and later?
Thanks in advance
JeffreyP
The Best of Mercedes & AMG
Spark Plugs [/B]
Premium Class Iridium plug 5303 IK16 0.043 $11.99 [B]
Premium Class Double platinum 3275 PK16PR-L11 0.043 $8.00
Regular Class Traditional spark plug 3143 K16PR-L11 0.043 $2.24
http://www.densoproducts.com/
Iridium plugs are not worth the money. Stick with the OEM Bosch Super Coppers. Change them your self to save money and do it every 30K miles.
The V6 is more of a job to get at the plugs. There are 2 per cylinder and they are hard to get to. The owners manual sais they will last 100K miles.



