All-wheel-drive system behavior
Judder during low-speed turns, vibration on acceleration and driveline warnings may involve tire rolling circumference, wheel-speed data, front or rear axle joints, prop shafts, transfer-case control or differential components. Similar symptoms can arise from unrelated engine or transmission faults.
How a technician distinguishes the causes
Check all four tires for size, tread depth and pressure; inspect joints and mounts. Road-test under repeatable steering and load conditions, review wheel-speed and AWD module faults, and check fluid condition or actuator operation where applicable. Avoid condemning a transfer case before excluding tire and axle causes.
Repair decisions and verification
Verify the repair with tight-turn maneuvers and acceleration under the original complaint conditions, and confirm that related chassis faults do not return.
What owners may notice. On Q4-equipped vehicles, vibration, binding or traction warnings may involve tire differences, wheel bearings, propeller shafts, differential hardware or electronic AWD control.
How the problem should be diagnosed. Compare all four tire sizes and tread depths, inspect driveline joints and leakage, and read applicable AWD and stability-control data before replacing components.
Repair and safety considerations. The rear-wheel-drive and Q4 systems are different; identify the vehicle configuration first.
If your Maserati is showing these symptoms, call Mich’s Foreign Cars in Hickory, NC at 828-324-6012. Please provide the year, model, engine, warning messages and any recent repair history so the service department can discuss the appropriate next step.