Intermittent problems with electronic modules or circuit boards are often the result of a cold-solder joint. Cold-solder joints are quite common in remote-keyless-entry fobs, electronic ...
This is probably the standard VAG ATE Teves Mk 60 ABS/ESP brake pressure sensor fault. Three years ago VAG were charging £1800 to replace the entire ABS/ESP module. I found people who can do a fix for ...