7 SPEED S-TRONIC
7 SPEED S-TRONIC
WHAT IS 7 SPEED S-TRONIC?
The dual-clutch transmission, also known as the Direct Shift Gearbox (DSG) or twin-clutch transmission,
is an automated transmission that can change gears faster than any other geared transmission.
Dual clutch transmissions deliver more power and better control than a traditional automatic transmission and
faster performance than a manual transmission.
Originally marketed by Volkswagen as the DSG and Audi as the S-Tronic, dual-clutch transmissions are now offered by several automakers, including Ford, Mitsubishi, Smart, Hyundai and Porsche.
Downshifting with Dual-clutch Transmission:
One advantage to both SMTs and dual-clutch transmissions is the ability to perform matched-rev
downshifts. When a driver selects a lower gear, both types of transmission disengage the clutch(es) and
rev the engine to the exact speed required by the selected gear.
Not only does this make for a smoother downshift, but in the case of the twin-clutch transmission, it allows plenty of time for the proper gear to be pre-selected. Most, though not all, dual-clutch transmissions can skip gears when downshifting, such as shifting from 6th gear directly down to 3rd gear.
THE MOST COMMON ISSUES WITH
7 SPEED S-TRONIC GEARBOX
Most common issue is a damaged Mechatronics.
Replacement for new ranges between 1600 - 2200 GBP + VAT.
Mechatronics consists of:
TCU – transmissioncontrol module.
We can repair these modules under a microscope or replace for new, or re-manufactured one.
You can tell that’s a damaged TCU by flashing control lights on the dashboard. Often you will lose some gears as well. Mechatronics tends to get used around 70-120k miles.
VALVE BODY – pressure and
oil transmission module.
We are repairing and remanufacturing these here in our headquarters in Bristol. Valve body tends to get used/breaks around 40-80k miles.