Have tracked down a coolant leak to the charge cooler (camera through IAT sensor and wet inside). 
 

I’m trying to track down a compatible part, new genuine is around £800 so looking for second hand or eBay. 
 

Anyone know how to confirm compatible part numbers? Latest revision according to the dealer is 04L 129 766 Q

 

There are lots of other revisions out there so not sure what fits. A few AJ revisions on eBay, but can’t track down whether they will fit. 
 

thanks 

Searching for that suffix Q part on Skoda Parts.com gives the following part numbers listed along the top the page Škoda part number: 

04L 129 766 BA

04L 129 766 AM

04L 129 766 B

04L 129 766 H

04L 129 766 N

04L 129 766 Q

04L 129 766 S

 

Intake Manifold Škoda 04L129766BA (skoda-parts.com)

 

I think that indicates that all are interchangeable.

 

What's the part number of the one currently on the car?

Edited 19 October, 20223 yr by Breezy_Pete
extra qu

It’s a 04L 129 766 Q on it

@varooom may be kind enough to confirm/deny whether those other numbers from the skodaparts page are all supersedences of one another. 

4 minutes ago, Breezy_Pete said:

@varooom may be kind enough to confirm/deny whether those other numbers from the skodaparts page are all supersedences of one another. 

04L 129 766 Q --> 04L 129 766 AM --> 04L 129 766 BA

 

This is how your part changes to the latest version

Thank you!

Yes, thank you @varooom.

I was able to confirm using OEMwolf.com that B>N, N>Q, H>Q,  and strangely unalphabetically S>Q (where '>' is intended to mean was replaced by).

But that site isn't up to date enough to cope beyond Q.

 

 

Any way to check cross compatibility across Vw group? Can seem to find these from golf’s or Leon’s but struggling for an Octavia one

If the part number is the same, it's the same irrespective of brand.

Ahh not ideal then. Can find a few that don’t match the codes on skodaparts. Different modification letter so not worth the chance. 
Thanks 

 

To my eyes the last letter of the part number engraving might be an N rather than an M though?

 

AUDI A3 VW GOLF PASSAT 1.6 TDI INLET INTAKE MANIFOLD COOLER 04L129766AM | eBay  ?

Edited 19 October, 20223 yr by Breezy_Pete

Was trying to source newish but looking like that might have to do. 
 

Anyone aware of a weakness in the earlier versions that was rectified? Or was it just one of those things to go. Done about 120k miles

You'd definitely not want that one if it is really an -AN, that could be quite different.

2 hours ago, varooom said:

04L 129 766 Q --> 04L 129 766 AM --> 04L 129 766 BA

 

This is how your part changes to the latest version

Stick to one of these 3x values to be absolutely sure of a compatible fit

The link that @Breezy_Pete linked to earlier (removed extra crap) should be good enough to replace what you have.

https://www.ebay.co.uk/itm/155133613768

 

Ideally find a BA version, but probably hasn't hit the eBay market yet for being too new

 

Thankfully AN is not a legit part, so contact the above seller to confirm that it is AM not AN

Best of luck!

Could also be AH. I just can't see dots where dots should be to make that last letter read as an M?

 

Just now, Breezy_Pete said:

Could also be AH. I just can't see dots where dots should be to make that last letter read as an M?

 

True, worth getting them to wipe the grime off it.

Yep it was a typo, was actually AH. 

 

Any idea where the aj part comes from? Can’t find much info on it but the below eBay description seems to say it’s compatible. Waiting on a response from the seller. 
 

NEW Genuine Intercooler Audi Seat Skoda VW 1.6 2.0 TDI 04L129766AJ, AK

6 minutes ago, T07 said:

Yep it was a typo, was actually AH. 

 

Any idea where the aj part comes from? Can’t find much info on it but the below eBay description seems to say it’s compatible. Waiting on a response from the seller. 
 

NEW Genuine Intercooler Audi Seat Skoda VW 1.6 2.0 TDI 04L129766AJ, AK

 

 

The weld on that looks very suspect, looks like its had a new core welded in the middle of it.

 

Any use?

 

https://www.ebay.co.uk/itm/165731073405?hash=item2696577d7d:g:XJQAAOSwMg1jTq6A&amdata=enc%3AAQAHAAAAoM7ndPdGx5LNaNV38ndSPrwc%2Fb7Y1PVuI0bvDvRU7q60Kj8jfYCBPBwanlXvQWsQhxYWkqiK%2B5yiRT33KxByYWs%2B2z7s2xgEZ9%2Bo%2FESOP5iUNV9V8AEYPJvuZXsw%2Fn64Fsjx29rr7wrSOxPmnDiMsSpqZdNKaf3RUkaC7PojWJq9GD5hkdj2dnxHGzjaHt3n5YQrUQ4iyX33p5RDqUHt06I%3D|tkp%3ABk9SR5qNu8v-YA

 

 

Unfortunately I don’t think so. The version ending L seems to be slightly different around where the Egr valve is than the version ending Q. 
 

Think I’ll have to take a punt on one 

 

https://www.ebay.co.uk/itm/255167640661?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=8e4WzG6sSw-&sssrc=2349624&ssuid=KpJ5SJsHTG6&var=&widget_ver=artemis&media=COPY

OK so Dark side developments are selling new latest version coolers says for the MQB platform but doesn't mention the Octavia in the list and the part number is slightly different 

 

https://www.darksidedevelopments.co.uk/products/genuine-mqb-charge-air-cooler-04l-129-711-ab.html

 

Supersedes part numbers

 

04L129711AB - 04L129711 AB - 04L 129 711 AB
04L129711D - 04L129711 D - 04L 129 711 D

dark side were very helpful when I was in touch, but they couldn’t be certain that the one they stocked would fit. Seems to be a couple of different versions around which are all slightly different. 
 

Have ordered a second hand part so will try and pressure test it when it arrives and fingers crossed it’ll last another few miles!

I sent them a query on the part number 

 

Quick responses as ever and the correct part for (in my own case) a CKFC 2.0 cr tdi  is 04L 129 711 AB 

 

only from VW @ £795 +vat..... 

Edited 24 October, 20223 yr by Phil2013

So by the looks of it the AB version has an opening on the right hand side that on the Q version isn’t the whole through the casting. Don’t know what the difference is on the engine itself