SLK/R170: slk 320
MBWorld Fanatic!
Joined: Mar 2002
Posts: 1,537
Likes: 2
From: Arizona, USA
W205 C300
Well there are 12 of them and they are not that easy to get at. The 3.2L V6 is used in a lot of Benz models so there might be more help in the C-Class or E-Class forums. You have to remove the coils and the boots without damaging them so special tools may be needed. Dealerships charge over $200 to change the plugs because of the labor involved. Don't go cheap on the plugs either. I would stick to the factory bosch set. I believe they are FR8DPP33. They are $6 each at most places. Don't do the +2 or +4 plug models. The OE ones work best.
Junior Member
Joined: Sep 2011
Posts: 23
Likes: 0
From: S.F Bay
2001 SLK320
Well there are 12 of them and they are not that easy to get at. The 3.2L V6 is used in a lot of Benz models so there might be more help in the C-Class or E-Class forums. You have to remove the coils and the boots without damaging them so special tools may be needed. Dealerships charge over $200 to change the plugs because of the labor involved. Don't go cheap on the plugs either. I would stick to the factory bosch set. I believe they are FR8DPP33. They are $6 each at most places. Don't do the +2 or +4 plug models. The OE ones work best.
