Replacement dual mass flywheel for the 6-speed DSG in 2009-2010 VW Jetta, 2010-2013 Golf, 2013-2015 Beetle and Audi A3 2.0L.
A rattle at idle that changes when you load the engine, a clunk when you switch the car off, or a buzz through the floor at low rpm on a DSG Jetta, Golf, Beetle or A3 is often blamed on the gearbox, when the part that has actually worn out is the dual mass flywheel in front of it. This is a replacement dual mass flywheel for the six-speed DSG (DQ250) behind the 2.0L engine, cross-referenced to DMF126 and 415074009 and to a long list of OE numbers in the 03G105266 and 03L105266 series.
A DSG car has no clutch pedal and no friction face on the flywheel. Volkswagen's training manual for the 02E describes the torque path: torque goes from the crankshaft into the dual mass flywheel, and the flywheel's splines drive the input hub of the double clutch, which feeds the two wet multi-plate clutches inside the gearbox. The flywheel itself is two masses joined by a spring pack. The primary mass bolts to the crank, the secondary mass drives the gearbox, and the springs absorb the firing pulses so they are not hammered into the clutches and gear sets. Those springs and their guides are what wear, and once they do, the engine's pulses come through as noise and vibration.
Rule out the gearbox side first. Scan the transmission module, and if the complaint is shudder rather than noise, do the fluid service and clutch adaptation before pulling anything; our DQ250 mechatronic and clutch guide explains how to tell clutch and mechatronic shudder apart, and the DSG overheating guide covers heat-related judder. Idle rattle that changes with load, plus a shutdown clunk, points at the flywheel. With the gearbox out, check the free rotational play and rocking between the two masses and look at the springs through the windows; excessive play or a dry, noisy spring pack confirms it.
The listing covers the six-speed DSG with the 2.0L engine in 2009-2010 Volkswagen Jetta, 2010-2013 Golf, 2013-2015 Beetle and 2010-2013 Audi A3. These cars used several flywheel part numbers depending on engine and build date, and most numbers on this cross-reference come from the 2.0 TDI diesel flywheel family, so a 2.0T gasoline GTI or GLI may use a different part. Read the number stamped on the flywheel you remove and match it to the OE list (03G105266BD, CH, BK, CJ, CP, CS, Q, AR and 03L105266AE, AF, DC, DD, EH, EJ), or send us the year and VIN. A separate flywheel is listed for the 1.9 TDI cars; see the 02E DSG flywheel for the 1.9 TDI Jetta. The full range is on the DSG collection page.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for the six-speed DSG with the 2.0L engine in 2009-2010 VW Jetta, 2010-2013 Golf, 2013-2015 Beetle and 2010-2013 Audi A3. Most of the cross-referenced numbers are 2.0 TDI flywheels, so match the number on your old flywheel or send us your VIN.
Flywheel wear is noise and vibration: rattle at idle that changes with load, a clunk at shutdown and a floor buzz at low rpm. Clutch or mechatronic problems show up as shift flare, slip, codes or judder that changes after a fluid service and adaptation. With the gearbox out, excessive play between the two masses confirms the flywheel.
No. A DSG dual mass flywheel has no friction surface and the worn part is the internal spring pack, so it is replaced, not machined.
New flywheel bolts, the rear main seal if it shows any seepage, and since the gearbox is out, the DSG filter and fluid service is a sensible addition.
Running the DSG clutch adaptation after the gearbox is reinstalled is recommended, with correct fluid level and oil at 30-100 C. It needs VCDS or a scan tool with VW basic settings.
