VW Repair & Maintenance Procedures 2

Question 1

When replacing a VW DSG (Direct Shift Gearbox) mechatronic unit, what fluid procedure is mandatory before installation?

Accepted Answer

Pre-fill the new mechatronic with the correct DSG fluid to prevent dry-start damage

Answer

Pre-filling the mechatronic unit prevents internal damage from dry operation during initial engagement.

Question 2

A VW 2.0 TSI engine exhibits oil consumption above 0.5 L/1000 km. After confirming piston ring wear is within spec, what is the next most likely cause specific to this engine family?

Accepted Answer

PCV (positive crankcase ventilation) valve failure causing excessive crankcase pressure

Answer

A failed PCV valve on the 2.0 TSI can cause elevated crankcase pressure, forcing oil past seals and into the combustion chamber.

Question 3

When performing a brake fluid flush on a VW with an MK60/MK70 ABS module, which procedure ensures the ABS pump is bled correctly?

Accepted Answer

Activate the ABS pump cycles through VCDS/OBD tool while bleeding

Answer

The ABS modulator contains internal passages that trap air and require pump activation via scan tool to fully purge.

Question 4

On a VW with a 2.5L 5-cylinder engine (BGP/BGQ), the timing chain tensioner must be replaced. What special tool prevents engine rotation during tensioner removal?

Accepted Answer

Flywheel locking pin T10009

Answer

T10009 locks the flywheel to prevent crankshaft rotation while the tensioner is released and removed.

Question 5

A VW Passat B7 air conditioning system is low on refrigerant with no visible leak. After recharging, what is the recommended VW procedure to locate a slow leak?

Accepted Answer

Use an electronic refrigerant leak detector at all fittings immediately after recharge

Answer

VW recommends using a calibrated electronic leak detector around joints and components while the system is at operating pressure.

(VW) Volkswagen Certified Technicians Practice Test

(VW) Volkswagen Certified Technicians Practice Test

VW Repair & Maintenance Procedures 2