[Adamgolf]

I want to fix them before they are broken, they look okay but there are some spots where the braid is coming apart.

 

[blupearl]

For the ALH, your car should be similar.

3,5 X 2 (part number N 020 353 5)
350 mm from main vacuum line to a T
80 mm from a T to the N18 (black top valve)
170 mm from a T to a small check valve
45 mm from a T to the N75 (white top valve)
530 mm from a T to the vacuum canister (damper)
1000 mm from turbo to a connecting pipe
60 mm from a T to a T
180 mm from a T to N239 (change over valve)
120 mm from N239 to vacuum actuator

5 X 3 (part number N 020 282 1)
360 mm from N18 to EGR valve
50 mm from N75 to connecting pipe (going to turbo)
320 mm from N75 to fresh air line T
80 mm from N18 to fresh air line T
300 mm from air box to fresh air line T

T pieces are part number 113 201 943 B
small vacuum check valve is 046 905 291 A
connecting pipe is 06A 133 382 K

 

[chittychittybangbang]

You don't have to buy the OEM stuff though. 3, 3.5, and 4mm vacuum lines will work just fine. If you buy silicone replacements, they will stay soft and last a long time too.

 

[blupearl]

Plus, the OEM VW braided lines tend to not be as high quality as you think, they cost a lot because they are OEM parts.

 

[Adamgolf]

I saw the post below mine and want to avoid a check engine light and limp mode too.

 

[blupearl]

Then replace them and you should avoid this issue. A check engine light and limp mode isn't the end of the world though, if you are in limp mode you will feel it right away and a check engine light can be reset.

 

[cmh_brickster]

You don't have to buy the OEM stuff though. 3, 3.5, and 4mm vacuum lines will work just fine. If you buy silicone replacements, they will stay soft and last a long time too.

So for all those vacuum lines, do I just pick a thickness (3, 3.5, or 4mm) and replace?

 

[Fluid]

Almost all are 4 mm, you probably just want 2 feet of 3.5 mm. 3 mm is kind of hard to fit onto some lines.

 

[cmh_brickster]

5 X 3 (part number N 020 282 1)

Is this one 5MM hose or 3MM hose?
Also, regarding the T-fittings, how many are there and what size are they?

When I replace my vacuum hose I want to replace the T-fittings as well.

 

[blupearl]

Is this one 5MM hose or 3MM hose?
Also, regarding the T-fittings, how many are there and what size are they?

When I replace my vacuum hose I want to replace the T-fittings as well.

IMO, the silicone will stretch out, it looks like it's 5mm but 4mm will work as well. The 3mm is a bit harder to stretch out that far.