Wife has a  ( 2012 ) Octavia-II with EA888-II TSI  engine.
The car works incredibly well, but drinks a lot of oil.
( I only put 100 % fully synthetic oil 5w-40 in it. )
Was thinking of changing the PCV-valve to see if it gets a little better,
...But the latest updated version of the PCV-valve are available in 2 different versions from VAG-dealers with 2 different part numbers !  😵
Even my SKODA dealer didn't know the difference and which one I should have on the car  😵

According to the member TheClient  here on the forum,
the only difference between them is that one of them has one internal non-return valve and that the other version has two internal non-return valves.

1. Which part number represents which version ?
2. Which one should I choose and why ?
3. Advantages and disadvantages ?
4. Anything else that is good to replace at the same time as replacing the PCV-valve ?  🤔

#  06H 103 495 AH
#  06H 103 495 AJ

 

The suffix AJ just means it is a later revision of the ealier AH part.

 

Both "should" be interchangeable, the later revision may have slight design and materials differences.

 

If in doubt just replace like with like, the part number is clearly visible.

7 hours ago, MicMac said:

The suffix AJ just means it is a later revision of the earlier AH part.

Sorry to say, but it's not really that simple.
Both part numbers are active and valid, they do not replace each other.

Indeed: A common error with VAG part numbers - Handy Topics & Guides - BRISKODA

 

 

If you'd like me to see if I can find anything out for you, @2stroke, message me with the vehicle VIN please.

Not sure I'll be any help, but happy to try.

4 hours ago, 2stroke said:

Sorry to say, but it's not really that simple.
Both part numbers are active and valid, they do not replace each other.

Where did you get that information?

1 hour ago, MicMac said:

Where did you get that information ?

According to my local VAG-dealer, it is not as simple as a number suffix.
Both part numbers are updated and valid.
So something is different on the inside of the PCV-valve,  but what and why ?  🤔

10 minutes ago, 2stroke said:

Something is different on the inside of the PCV-valve

That is what I said, presumably the later part is better so why are you overthinking things.

 

If the original part is faulty, you'll have improvement whichever revision part you fit.