AWD systems provide added safety, but they also add complexity to both the mechanical and electronic systems in your car. These systems contain differentials and transfer cases with complex mechanical components. The fluids in these units should be changed between 30k and 60k miles depending on the manufacturer.  Like all lubricating fluids, they break down from heat, moisture and use so keeping fresh fluid is essential to longevity. AWD systems also utilize additional axles and constant-velocity (CV) joints. These transfer power to the wheels and need to be inspected regularly for wear. CV joints are covered with boots that retain grease and keep out debris. Torn CV boots are easy to repair and should be fixed right away before damage occurs to the CV joint and axle. A front-axle failure on an AWD car can be dangerous and expensive to repair.

Some symptoms that indicate your AWD system needs inspection are excessive noise especially when turning or switching between gears, hard turning, unusual vibrations, a dash warning light or fluid leaks. The ASE-Certified technicians at Weston Automotive have 40 years’ experience with AWD systems. Trust them to maintain your AWD system to keep it performing as it was designed. They will accurately diagnose and repair any problem to keep your system working safely.  Come in for a courtesy inspection if you notice an issue with your AWD. These inspections are free, and there is never pressure to buy any repair.