Vibration Analysis for Machinery Health Diagnosis This Is How A Haldex Works! #reperformance #audi #haldex #vw #rs 5WP3351801 Used Haldex ECU Used Volvo XC70 XC60 XC90 AWD Cars Ecu PDF) By Clarence W. de Silva Put a post on the other day about a vibration from the rear this video shows it allready changed a driveshaft wasnt it front and rear wheels have been swapped round Joshua Charlesworth Facebook Easy basics of vibration diagnostics. Beginner's guide.