ADT Transmission & Drivetrain Systems 2

Question 1

On an Audi with DSG (Direct Shift Gearbox), what fluid specification is required for the dual-clutch wet pack?

Accepted Answer

G 052 182 A2 (DSG fluid)

Answer

Audi DSG wet-clutch units require G 052 182 A2 fluid, which is specifically formulated for the dual-clutch friction characteristics.

Question 2

What is the primary function of the Torsen differential used in Audi quattro systems?

Accepted Answer

Passively distributes torque based on traction via worm gears

Answer

The Torsen (torque-sensing) differential uses worm gears to automatically and passively bias torque to the axle with more traction without electronic intervention.

Question 3

A customer complains of a shudder during low-speed acceleration on an Audi with a wet-clutch DSG. After topping off the correct fluid, the shudder persists. What is the most likely cause?

Accepted Answer

Contaminated or degraded DSG fluid requiring a full change

Answer

Clutch shudder in wet DSG units is commonly caused by degraded friction modifiers in old fluid; a complete fluid change with the correct G 052 182 A2 fluid typically resolves the issue.

Question 4

When performing a ZF 8-speed automatic transmission adaptation reset on an Audi using ODIS, which sequence is correct?

Accepted Answer

Clear DTCs, road test, then run Basic Settings

Answer

DTCs must be cleared first so the adaptation learns from a clean baseline during the subsequent road test before Basic Settings confirms the adaptation.

Question 5

On an Audi quattro with crown gear center differential, what is the default front-to-rear torque split under normal driving conditions?

Accepted Answer

40:60

Answer

The crown gear center differential in sport quattro models provides a 40:60 front-to-rear torque split by default for a rear-biased driving feel.

(ADT) Audi Diagnostic Technician Practice Test

(ADT) Audi Diagnostic Technician Practice Test

ADT Transmission & Drivetrain Systems 2