Hammer mod adjustment for my Jetta TDI


Well-known member
Mar 29, 2007
Brampton, Ontario, Canada
2002 Jetta TDI and 2003 Jetta TDI
I want to perform a hammer mod adjustment on my Jetta TDI and recall seeing detail explanation on it here somewhere but can't find it.

I found this link but I'm not sure if it is for my year. http://forums.tdiclub.com/showthread.php?p=949613

I have a 2002 with a ALH engine code. I get the Quantity Adjuster (N146): Lower Limit Reached P1563 and I've been told adjusting the hammer mod will take care of that

I would like to see some pictures of how this is done

Ed's TDI

Top Post Dawg
Jan 30, 2001
Victoria, BC, Canada
'01 Bora and '97 A4 1.8T Quattro (future TDI conversion maybe?)
This is the Picture Gallery/Specs of Members' TDIs section. You find you will get more replies to your questions if you post in the right place. Please post your thread in the appropriate section. This would get better response in the TDI Power Enhancement section.