::ECS Tuning:: E350 Cylinder Head Expansion Plug Kit
#1
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2012 SLS AMG
::ECS Tuning:: E350 Cylinder Head Expansion Plug Kit
![](http://www.ecstuning.com/sales/ecs600header.jpg)
Click HERE to order or for more information.
Only $13.90*
If you have noticed some oil leaking out of your engine from the back of the cylinder head, the cause may be as simple as a failed expansion plug.
The expansion plugs are located in the rear of the cylinder head on your Mercedes-Benz engine. Over time, the rubber o-ring that seals this expansion plug to the cylinder head can become brittle and fail, causing oil to leak.
Don't put up with oil leaking out of your Mercedes-Benz. Replace all of your expansion plugs today.
![](http://www.ecstuning.com/marketing/MB_W211_E350_M272_Cylinderhead_Expansion_Plug_Kits/MB_W211_E350_M272_Cylinderhead_Expansion_Plug_Kits.jpg)
*Price subject to change.
#2
Senior Member
I replaced all my plugs 3 I think but still have a leak in the rear. passenger side head I have a w209 on the passenger side rear of the head there is a black round piece with 4 screws what is that called ? it may be leaking from there