Project Chrome Dome.
Got intake off car and separated and got the 4 screws out- scared to yank on it too much. How does that "inside" come out?
I have been chasing this for months, dating back to when I bought a MAF sensor because I got my check engine light with the code P170 (intake fuel trim something). I changed the MAF sensor, no luck!
I kept checking as recommended for a vacuum leak. I found this leak by running the car at idle and spraying MAS spray cleaner around the intake track, near the identified location, the spray effected the idle--bingo! I applied some extra torque to these bolts and the leak went away for about a month---but now it's back!
Needless to say I need to change this gasket, but I contacted my long time MB dealer and they said that the intake manifold is not “serviceable” here—in other words the intake manifold is sold as an assembly, so the gasket and torques specs are not available! They say I have to buy the entire intake manifold---big bucks!
In the photos in this thread it looks like this gasket is really an o-ring type seal right?
Help, has anyone come across this same problem on the 320 motor? How have you guys solved this? I can’t believe anyone that is mechanically inclined would buy an entire manifold to solve this leak.
Thanks for any help




I have been chasing this for months, dating back to when I bought a MAF sensor because I got my check engine light with the code P170 (intake fuel trim something). I changed the MAF sensor, no luck!
I kept checking as recommended for a vacuum leak. I found this leak by running the car at idle and spraying MAS spray cleaner around the intake track, near the identified location, the spray effected the idle--bingo! I applied some extra torque to these bolts and the leak went away for about a month---but now it's back!
Needless to say I need to change this gasket, but I contacted my long time MB dealer and they said that the intake manifold is not “serviceable” here—in other words the intake manifold is sold as an assembly, so the gasket and torques specs are not available! They say I have to buy the entire intake manifold---big bucks!
In the photos in this thread it looks like this gasket is really an o-ring type seal right?
Help, has anyone come across this same problem on the 320 motor? How have you guys solved this? I can’t believe anyone that is mechanically inclined would buy an entire manifold to solve this leak.
Thanks for any help
Would be nice to know what kind of sealant he used too since im i the middle of cleaning/polishing my intake mani...
Hi, I'm new on the forum. I took apart my manifold and I'm not sure about applying gasket maker around the ports. Did you get any resolution to your problem? The yellow line indicates the original gasket that I'm reusing, the areas marked in blue is what I'm wondering about.
I dont want to buy a new one but im not sure how to fix it at this point if I cant separate them..
Any help would be greatly appreciated!!
The Best of Mercedes & AMG
Hi, I'm new on the forum. I took apart my manifold and I'm not sure about applying gasket maker around the ports. Did you get any resolution to your problem? The yellow line indicates the original gasket that I'm reusing, the areas marked in blue is what I'm wondering about.
Ignore the spots you have in blue, but you need to connect the parts in yellow as well. Essentially you should have a thin beat of RTV that runs straight down the manifold as well as on the outsides (which has a larger, thinker bead)




The racing folks are gutting the secondary plates.
If you want to seal this intake properly use loctite RTV for Porsche and Mercedes Head gaskets. I have the number somewhere but it is intended for applications like this.
Recently modding my M113 and it was a necessity. Google head gasket sealants for Porsche Alusil engines. It is available on Amazon.
It is not recommended to gut the M113 intake secondaries without preparing for a re tune.
My 2 cents in this 2006 informative thread.
Cheers
Last edited by GatorMB; May 8, 2017 at 09:32 PM.
The racing folks are gutting the secondary plates.
If you want to seal this intake properly use loctite RTV for Porsche and Mercedes Head gaskets. I have the number somewhere but it is intended for applications like this.
Recently modding my M113 and it was a necessity. Google head gasket sealants for Porsche Alusil engines. It is available on Amazon.
It is not recommended to gut the M113 intake secondaries without preparing for a re tune.
My 2 cents in this 2006 informative thread.
Cheers
you mention the sealant but there’s very obviously some glue in some places inside the intake that need re - applied too




Here is a link to the sealant. I would apply to all mating surfaces of intake halves sparingly.
you dont want excess collecting into the butterfly.
Cheers
Here is a link to the sealant. I would apply to all mating surfaces of intake halves sparingly.
you dont want excess collecting into the butterfly.
Cheers




