VW Volkswagen Vehicle Systems & Technology 2

Question 1

What does the VW Direct Shift DSG (DQ381) gearbox use to improve launch performance compared to earlier DSG units?

Accepted Answer

A wet multi-plate clutch pack for 1st gear only

Answer

The DQ381 uses a wet clutch dedicated to 1st gear, allowing slip-controlled launches for better traction and smoother starts.

Question 2

In VW's MQB platform, which component integrates the electric power steering pump directly to reduce parasitic losses?

Accepted Answer

The electromechanical steering column

Answer

MQB vehicles use an electromechanical (EPS) steering column that draws power only on demand, eliminating the hydraulic pump's constant parasitic drag.

Question 3

When diagnosing a VW 2.0 TSI EA888 Gen 3 engine with oil consumption complaints, which component is most commonly replaced first?

Accepted Answer

PCV oil separator

Answer

A failed PCV (positive crankcase ventilation) oil separator on the EA888 Gen 3 allows oil mist to be ingested into the intake, causing excessive oil consumption.

Question 4

What is the purpose of the 'thermal management module' found on VW TDI engines?

Accepted Answer

It regulates coolant flow to accelerate engine warm-up and manage cabin heat

Answer

The thermal management module directs coolant flow to accelerate warm-up, improve fuel economy, and manage heating performance efficiently.

Question 5

On a VW with a 7-speed DQ500 DSG, the clutch slip adaptation values are stored in which control module?

Accepted Answer

Mechatronic unit within the transmission

Answer

The mechatronic unit inside the DSG houses the Transmission Control Module (TCM) and stores all adaptation values including clutch slip parameters.

(VW) Volkswagen Certified Technicians Practice Test

(VW) Volkswagen Certified Technicians Practice Test

VW Volkswagen Vehicle Systems & Technology 2