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I decided to change the intake filter and saw some oil at the elbow of the intake, then I decided to take off the manifold for inspection. I don't think the intake valves were bad after 100k miles. The whole process took about 15-20 min.
What is the best way to clean the intakes? See pic
Last edited by randy0211; 04-21-2020 at 10:56 PM.
Reason: Spelling
Save your money. They don't do anything. I had one on my Audi and had to carbon clean the valves AGAIN after only 10k. I took it off and threw it away.
Save your money. They don't do anything. I had one on my Audi and had to carbon clean the valves AGAIN after only 10k. I took it off and threw it away.
I can't say I agree entirely. There are many success stories out there. People have been draining these cans with junk inside. Maybe the m276 is better at oil separation (centrifuge pvc) after 100k miles. I can just leave things the way they are right now and not worried about it because I would most likely sell the car before it becomes a problem.
I can't say I agree entirely. There are many success stories out there. People have been draining these cans with junk inside. Maybe the m276 is better at oil separation (centrifuge pvc) after 100k miles. I can just leave things the way they are right now and not worried about it because I would most likely sell the car before it becomes a problem.
I'm one of those people. I would drain a TON of gunk from my catch can at every oil change, like an Aquafina-bottle 3/4 full. However, I realized it was mostly water. Brown water with a tiny bit of oil emulsified in it. Just condensation. My two cents is this: Mercedes figured their PCV **** out, and you just don't need to worry about it for the life of the engine, and as such, you don't need a catch can. VW/Audi (like my car) is a total disaster, so bad that even a $400 catch can does nothing for you (as my car has conclusively proven, as I may be one of very few owner's who's had to do multiple carbon cleanings). Now, I am not talking MB here. For MBs it's not an issue. But for other makes who haven't gotten their PCV figured out, it takes about 60-80,000 miles or more for symptoms to start to show (misfires, etc) and Joe Owner to take it to the dealer to have it worked on. Now, some guys will go and put a catch can on. How many of those guys are going to perform multiple carbon cleanings at 60-80,000 miles without the catch can, and then again turn around and perform multiple more carbon cleanings with the catch can, WITH THE SAME DRIVING STYLE (because that matters too), often enough to get a real baseline and valid data? The answer is zero. I mean, to get even ONE set of valid data you'd need a car with probably 600,000 miles. There is no metric, no actual experiment, no study that shows catch cans do anything. Catch cans catch condensation, and that condensation comes from an oily environment, so it kinda looks brownish. They don't do a damn thing about oil & carbon. Save your money (ESPECIALLY on an MB, which has an excellent PCV). Wish I had.
Agreed with the above. The M276 does not really have the carbon issues. Every now and then we see a post, but certainly nothing like the Audi/BMW stuff. I’m not worried about mine at all.
04-21-2020, 02:03 PM
