Slight jerk or clunk when accelerating again with the dual-clutch gearbox, which is normal (Mercedes 7G-DCT, 8G-DCT and 8F-eDCT)

Engine / equipment

Mercedes-Benz with 7G-DCT (724.0), 8G-DCT (724.1) or 8F-eDCT (724.3) dual-clutch gearbox

Period mentioned

2013–2025 (US model years)

Symptoms

Now and then a brief jerk, clunk or thud from the gearbox, mostly when going from coasting to pressing the accelerator (for example, when a traffic light turns green as you approach).

Possible cause described

Mercedes explains that dual-clutch gearboxes shift more abruptly because they pull away and change gear with real clutches, and that this slight jerk is a normal technical characteristic. If diagnosis finds no faults, no parts need replacing (information LI27.10-P-080851).

Check for the garage

Ask the workshop to run the gearbox diagnosis; if no fault shows up, nothing needs replacing. It is more noticeable in the S, S+ and M modes.

Cost cited in the source

No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database