Is the AC system from a 2003 Jetta compatible with a 2005 Jetta.

Hey markj61 – I believe it should work, but I'm not 100% positive. There's a reddit feed about interchangeable parts in which one person mentions going to rockauto.com and then going through the flow (Volkswagen > Jetta > 2003 > Engine Info > Air Conditioning) and then if you click the part # displayed, it pops up with the years it works with. I clicked a random A/C compressor and it displays Jettas from 2000-2005. I would check that out for yourself though and make sure it looks correct. Good luck! -KB

if it's got a>SD7V16 Compressor>>>and or>>> Wobble Plate..this for a 2.8L engine. call a parts store,get them to look it up for both vehicles,see if it's the same part number on both. be sure and GIVE them the engine size also..there are FOUR different engine sizes,which you did't list in your question.