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View Full Version : AFN / AHU coolant pipe differences



expat2000
17-04-2015, 12:26 PM
Hi all

A coolant pipe on my 1998 1.9 TDI (AFN engine) let go this morning.

Looking up the part number on partsbase I came across this:



1
028121053K (http://www.partsbase.org/parts/aud-028121053k/)
coolant hose; (flange > oil cooler >; coolant pump); 1Z,AFF,AHU
1


1
028121053AA (http://www.partsbase.org/parts/aud-028121053aa/)
coolant hose; (flange > oil cooler >; coolant pump); AFN
1


Online sellers seem to have plenty of the K variant for the 1Z/AFF/AHU engine but cant find any of the AA variant for the AFN engine.

So the question is does anyone know what the difference is. I have tried seaching the forums but its quite a detailed question. Nowhere can I find any specific differences in the cooling system between the engine variants. All the pictures I can find online look very similar so I am wondering if I can use the AHU variant?

For reference the partsbase page is here: AUDI A4/AVANT [A4] (EUROPE) 1996: ENGINE: 12140. COOLANT COOLING SYSTEM (http://www.partsbase.org/audi/audi-a4-avant-a4-eu-1996-12140-coolant-cooling-system/)

Cheers

Stuart

Doctle Odd
17-04-2015, 12:47 PM
No difference but you could double check with a main dealer