ALFAitalia
MB Enthusiast
- Joined
- Feb 19, 2022
- Messages
- 8,154
- Location
- Bognor Regis
- Car
- 2010 Mercedes W212 E Class E350 CDI Sport, 2006 Mercedes W169 A Class A170.
Om642. 231 horse version in a W212 E350 CDI. 2010 model.
My car could do with a new breather as it leaks slightly and causes an oil haze to form on it.
My car has one of these...

.....which is used in conjuction with one of these.....

But the slightly later versions use one of these one piece items...without the centre round plastic part.

So my questions are, are they interchangeable and is there any advantage or issues from using the newer design. I assume it was changed for a reason. The later one piece one is certainly lots cheaper! Thanks in advance for any help.
My car could do with a new breather as it leaks slightly and causes an oil haze to form on it.
My car has one of these...

.....which is used in conjuction with one of these.....

But the slightly later versions use one of these one piece items...without the centre round plastic part.

So my questions are, are they interchangeable and is there any advantage or issues from using the newer design. I assume it was changed for a reason. The later one piece one is certainly lots cheaper! Thanks in advance for any help.