Cecking your ccv unit (another one…) – bimmerfest – bmw forums electricity vs magnetism venn diagram

##

I highly doubt you are getting an oil leak from the CCV. It does not carry a high volume of oil – mostly vapors from the valvetrain (under the valve cover) area. There is a VANOS line in that area that often leaks and may appear to come from the CCV system. There is also the highly common OFHG and oil pan gasket leaks

2. The rubber diaphragm and/or oil separator spirals get clogged and the system doesn’t maintain the correct vacuum very well. Similar symptoms (b, c, d, e) to above especially when the clog is at the lower dipstick return tube and oil cannot return to sump.

P.s. I’ve run 5 e46’s for a combined lifespan of 50 plus years and never had a CCV issue using regular Seafoam treatment. This includes running non cold weather versions with OE original dipstick return tubes in Ontario and upstate New York for many winters. My e46 toolkit contains turkey Basters

Not for an off-topic, I’m not too experienced with my car yet, but it seems that the common attitude with these cars is “replace everything, it’s all bad” and a lot of people don’t want to clean/fix, cause parts are “cheap”. I mean come on, new CCV is only $100 or so. Hey all the major gaskets together are only $$100-200 bucks. I mean coolant expansion tank is cheap to replace, it’s within $$100-150, and all vacuum line might as well be changed too. Now, that all really adds up, so where is the community of people trying fix these things, instead of replacing parts?

Not for an off-topic, I’m not too experienced with my car yet, but it seems that the common attitude with these cars is “replace everything, it’s all bad” and a lot of people don’t want to clean/fix, cause parts are “cheap”. I mean come on, new CCV is only $100 or so. Hey all the major gaskets together are only $$100-200 bucks. I mean coolant expansion tank is cheap to replace, it’s within $$100-150, and all vacuum line might as well be changed too. Now, that all really adds up, so where is the community of people trying fix these things, instead of replacing parts?

Let`s get something straight….these are not Fords, Chevys, or Hondas. Things have more dramatic consequences….When you have a system failure on a BMW, it can often mean destroying your engine, as just ONE episode of overheating can do. The cooling system, for example, is a good place to illustrate the "weakest link in the chain" concept, as just about EVERY part in it is a potential failure point, so just replacing a part or two is an extremely ass-backward mindset. While a total system rebuild may not be "cheap", it is certainly less expensive than an engine replacement. Think of it as buying life insurance for your engine.

Let`s get something straight….these are not Fords, Chevys, or Hondas. Things have more dramatic consequences….When you have a system failure on a BMW, it can often mean destroying your engine, as just ONE episode of overheating can do. The cooling system, for example, is a good place to illustrate the "weakest link in the chain" concept, as just about EVERY part in it is a potential failure point, so just replacing a part or two is an extremely ass-backward mindset. While a total system rebuild may not be "cheap", it is certainly less expensive than an engine replacement. Think of it as buying life insurance for your engine.

I’m not saying I expect it to be cheap, but I’m saying that I many parts can e cleaned or fixed before they are thrown away, not that I have much experience to prove it, but I did fix fuel pressure regulator and it seems to be working fine, also just got done cleaning CCV system, cause it obviously wasn’t broken.

No, what I am about to say probably goes against my stance ,but now that I put everything back together the car started to stall when engaging clutch, unless a lot of throttle is given?! I’m thinking there is a crack in one of the intake boots (will check tomorrow), there is also significant loss in power, feels weird. Must be my punishment for throwing the car back together in one night, haha