AUDI Transmission & Drivetrain Systems

Question 1

What does the term 'S tronic' refer to in Audi vehicles?

Accepted Answer

Audi's dual-clutch automated transmission

Answer

S tronic is Audi's marketing name for its dual-clutch transmission (DCT), which uses two separate clutch packs for odd and even gears to enable fast, smooth gear changes.

Question 2

Which component in the Audi quattro permanent all-wheel drive system distributes torque between the front and rear axles in most longitudinal quattro applications?

Accepted Answer

Torsen torque-sensing differential

Answer

Most longitudinal-engine Audi quattro vehicles use a Torsen (torque-sensing) center differential, which mechanically apportions torque based on traction demands without electronic intervention.

Question 3

In an Audi S tronic (DL501) 7-speed transmission, what is the primary function of the mechatronic unit?

Accepted Answer

It controls all hydraulic and electronic functions of the transmission

Answer

The mechatronic unit integrates the transmission control module (TCM) and hydraulic control body into one assembly, governing clutch engagement, gear selection, and solenoid operation.

Question 4

What fluid type is specified for most Audi S tronic dual-clutch transmissions?

Accepted Answer

Audi/VW G 052 182 dual-clutch transmission fluid

Answer

Audi S tronic transmissions require the specific dual-clutch fluid G 052 182 (or its approved equivalent) to properly lubricate the wet clutch packs and maintain correct friction coefficients.

Question 5

On a longitudinal-engine Audi with quattro, the rear differential receives power via which component?

Accepted Answer

A longitudinal prop shaft running to the rear final drive

Answer

In longitudinal quattro layouts, a prop shaft (driveshaft) runs from the transmission/transfer case rearward to the rear final drive unit, delivering torque to the rear wheels.

(AUDI) Audi Certified Mechanic Practice Test

(AUDI) Audi Certified Mechanic Practice Test

AUDI Transmission & Drivetrain Systems