Have a 2002 A4 Quattro 3.0 with the dreaded ABS and ESC light on. I have changed the brake switch and cleaned the drivers passenger abs sensor and checked the wiring from sensor. Vag com states its malfunction drivers side sensor. I know the abs modules fail so I have found some oem on eBay. My question is what numbers from the module need to match and do they have to be exact? Do the numbers from the pump that the module came from have to match also?

Thanks

Brad