P07D7Stuck in Gear 8
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- P07D7 means gear 8 cannot be disengaged: the module commands a shift out of 8th, but the transmission stays in it. It is the counterpart to P07D8, where gear 8 cannot be engaged. The only documented user is Maserati's eight-speed dual-clutch gearbox in the MC20 (from model year 2023), whose bulletin lists it next to the other 'Stuck in Gear' codes: hydraulic actuators move the shift forks, and a fork that does not reach neutral is reported. The repair path there first runs a service fast-learn with valve flushing and new adaptation, then records system pressure – it should hold 20–30 bar; drops below 5 bar point to the mechatronic unit, a stable pressure to the gearbox itself. No thresholds or trip counts are published.
- What you may notice
- Transmission stays in gear 8 and will not downshift
- Weak take-off after stopping
- Transmission warning, limp mode
- Likely causes
- LikelyShift fork actuator or shift valve sticking (contamination)
- PossibleSystem pressure low or unstable (mechatronic pressure valve)
- PossibleShift fork, synchronizer or gear damaged
- RareFluid or filter contaminated
- Repair
- Hard · Usually a job for a workshop.Typical cost: €200 – €9,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.