Apologies if this is something everybody knows about but I was looking around for information on how to test the AC module and I came across this guide-
It details the AC but also many other diagnostic features across the whole car. It covers not only the r129 but other models as well such as the 210 (if there are any left that need repairing!). Other models as well so its worth checking if you have something of that vintage! (1990-2000 roughly)
STAR TekInfo
manual.startekinfo.com
It details the AC but also many other diagnostic features across the whole car. It covers not only the r129 but other models as well such as the 210 (if there are any left that need repairing!). Other models as well so its worth checking if you have something of that vintage! (1990-2000 roughly)