Audi Q7 3.0 TDI Rear Axle Differential | 2010–2015 | Facelift Quattro Rear Diff Gearbox Spares

Description

Restore smooth mechanical power distribution, vibration-free highway cruising, and the legendary traction of your quattro all-wheel-drive system with this premium Audi Q7 3.0 TDI Rear Axle Differential Assembly (Rear Diff Gearbox). Specifically sourced and verified for the first-generation facelift models (4L platform) powered by the high-torque 3.0 V6 TDI common-rail diesel engine, this heavy-duty final drive unit is the definitive solution for vehicles experiencing a loud mechanical whining or howling noise from the rear axle, severe drivetrain binding during tight turns, or internal gear backlash play.

The Rear Axle Differential is responsible for receiving rotational power from the main propshaft and splitting it between the two rear wheels via the drive axles. Because the 3.0 V6 TDI engine produces massive low-end torque ($500\text{ Nm}$ to $550\text{ Nm}$ depending on the engine code), the internal ring and pinion gears, side gears, and tapered roller bearings operate under extreme torsional loads. Over time, high mileage or minor fluid leaks cause the specialized gear oil to degrade or run low, leading to metal-on-metal friction, overheating, and pitting along the gear teeth. Left unaddressed, a failing differential can seize, causing catastrophic drivetrain failure and compromising vehicle safety. Replacing the assembly with a fully verified unit restores silent operation and optimal torque transfer.

Manufactured with a high-strength cast iron housing designed to withstand immense structural stress, this rear differential features precision-machined internal gear sets shimmed to exact factory backlash tolerances. It comes complete with the input flange for the propshaft, left and right output flanges for the rear CV axles, and integrated mounting points that bolt directly onto the rear subframe bushings. Trust TP German Auto Spares for verified, workshop-tested drivetrain, gearbox, and axle components that keep your Audi Q7 running flawlessly on South African roads.

Key Features:

• Vehicle Compatibility: Audi Q7 (4L Platform) Facelift models from 2010 to 2015.

• Engine Fitment: Precision-matched to handle the specific torque curves and final drive gear ratios of the 3.0 V6 TDI engine.

• Quattro Integration: Works seamlessly with the central transfer case to maintain balanced power distribution and traction control.

• Heavy-Duty Casing: Reinforced cast-metal housing resists thermal expansion and protects internal gear alignments under heavy load.

• Leak-Free Shaft Seals: Fitted with high-integrity rubber oil seals to keep internal synthetic lubrication securely locked in.

• Condition: Thoroughly bench-tested and inspected for smooth flange rotation, zero gear tight spots, minimal backlash play, and immaculate casing integrity.