Audi A5 45 TDI Quattro

Vibrations during acceleration on an Audi A5 45 TDI Quattro are often caused by wear in an inner CV joint. The immense torque from the 45 TDI engine puts heavy strain on these joints; once play develops, vibrations travel through the drivetrain and into the car's bodywork.

No, drive shafts differ depending on the engine option, gearbox and whether the vehicle has Quattro all-wheel drive or front-wheel drive. It is therefore vital to select your exact model, year and engine variant to find the correct drive shaft for your 45 TDI Quattro.

The outer CV joint sits nearest the wheel and primarily accommodates steering angles; a typical symptom of failure is a clicking sound when turning. The inner CV joint sits nearest the gearbox and accommodates suspension movement; common symptoms of wear are vibrations under acceleration.

We recommend inspecting the CV boots at every service or wheel change. A split CV boot quickly leads to constant velocity joint failure due to dirt ingress and grease loss, which results in a costly repair if not caught early.

You can certainly replace just the inner CV joint provided the shaft itself and the outer joint are in good condition. We supply standalone inner CV joints specifically for the Audi A5 45 TDI Quattro to make for a more cost-effective repair.

The Quattro system distributes engine output across all four wheels, which in theory can reduce the load per shaft compared to front-wheel drive alone. However, the 45 TDI engine delivers substantial torque, which still places high demands on drivetrain components over time.