Common Volkswagen Issues (and what to do)

Carbon Build-Up on Audi Intake Valves
Audi’s FSI and TFSI engines are prone to carbon buildup because fuel no longer flows over the intake valves. This buildup causes:
Misfires
Hesitation
Reduced power
Poor fuel economy
Walnut blasting is the recommended method to restore airflow and engine performance. Regular cleaning ensures better throttle response and long-term reliability.

PCV System Failure
Failed PCV valves cause rough idle, oil leaks, boost loss, and excessive oil consumption—very common on 2.0T engines.

DSG Transmission Shifting Poorly
VW’s DSG gearboxes require routine service. If you experience jerking, slipping, or hesitation, degraded DSG fluid is often the cause. A proper fluid service typically restores smooth shifting.

Oil/Coolant Leak While Driving
TSI engines are known for leaks from the oil filter housing, cooler seals, and water pumps—often leaking only while the engine is running. If you’re losing coolant or oil with no puddles at home, we can quickly diagnose the source.

Timing Chain Rattle/Check Engine
Several VW engines (especially early 2.0T models) are known for timing chain tensioner failures. A startup rattle is an urgent sign—early diagnosis prevents catastrophic engine damage.

Water Pump / Thermostat Failure
Volkswagen water pumps are known to leak early due to composite housing design. Early detection prevents overheating and engine damage.
Symptoms include:
Coolant loss
Overheating
Sweet smell from the engine bay
Coolant residue around pump housing
Addressing these failures early helps prevent overheating and cylinder head damage.
If your Volkswagen isn’t driving like it should, bring it to our Sherwood shop. We’ll restore performance and reliability with expert VW diagnostics and repairs.