Dual-clutch transmission
Uses two clutches to alternate between groups of gears.
In the transmission assembly on equipped models.
Separate clutch paths let one gear group transmit torque while the other prepares a ratio.
Two relay runners preparing the next handover.
Judder or shift faults can involve clutch control, adaptation, mounts or mechanical wear.
Use the exact gearbox and axle service guidance. Loads, seals, lubricant condition and driving use influence wear.
An accessible mount or seal differs from internal transmission work. Gearbox identification and diagnosis are essential to a useful quote.
BMW M DCT and other BMW dual-clutch applications should not be assumed to share parts or procedures.
BMW rear-drive, front-drive and xDrive applications as equipped; layouts differ by platform.