DSG Dry Clutch or Wet Clutch? Differences and Service Needs

DSG gearboxes work with two separate clutches, but these can be built in two ways: dry and wet. Both follow the same logic, yet their service and driving habits differ.

Dry clutch

The clutch discs do not sit in an oil bath; the clutch is cooled by air. This design is light and efficient and is usually paired with low- and medium-torque engines. In heavy stop-start traffic and on hills the clutch surfaces heat up and can wear over time, which can show up as shuddering when pulling away.

Wet clutch

The clutch discs work in transmission oil, which cools them. It can carry more torque. In this design renewing the oil and filter on time is very important; worn oil shortens the life of the clutch and the mechatronic unit.

How to find out which gearbox you have

The engine type, model year and gearbox code determine the type. Checking by chassis number gives a definite answer. We check this when you bring the car in.

Service tips

• On a wet-clutch gearbox change oil and filter to the manufacturer interval, earlier in heavy use.
• On a dry-clutch gearbox avoid holding the car on a hill with the throttle in heavy traffic; use the brake.
• If you notice odd behaviour, have it checked without delay.