The 7 speed dual clutch of the transverse MFA platform (7G-DCT / 724.0: A/B/CLA/GLA/GLB) started its early years with jerking and firmware faults; today most of the complaints trace back to the mechatronics unit (valve body and solenoids) and the electric oil pump.
Show the restHide
Driven with a faulty mechatronics unit, the wet dual clutch wears faster. The mechanical part (synchros, differential bearing) tends to appear at high mileage.
This is not the longitudinal 7G-Tronic (722.9): a different casing and a different fault pattern.
What to check
- In town, crawling in traffic, watch for jerking between 1 to 2 and 2 to 3
- Pulling away uphill or in a queue: a delayed clutch engagement is suspect
- Ask for a fault code read on the DCT controller