Mechatronic assemblies

DSG mechatronic replacement units

Replacement DSG mechatronic assemblies including electronics for DQ200, DQ250, DQ380, DQ381, DQ400E and DQ500 transmissions. A mechatronic unit is a component of the transmission — not a complete gearbox. Prices are shown per unit; the exchange unit price depends on the model.

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Technical overview

What is a DSG mechatronic assembly?

The mechatronic unit combines two systems that used to be separate: the hydraulic control block (the valve body, with its solenoid valves and hydraulic channels) and the electronic control unit (the TCU) that decides when to pressurize each circuit.

In a DSG, the mechatronic unit controls clutch engagement and gear selection. It reads pressure and speed signals, drives the solenoid valves, and communicates with the rest of the vehicle over the CAN network. Because it contains both hydraulics and electronics, a fault in either half can produce the same symptoms — which is why diagnosis matters before replacing the unit.

DSG Clinic supplies mechatronic units as complete assemblies, including their electronics. They are not complete gearboxes, and they are not supplied as bare electronic modules.

Included in the assembly

What a DSG mechatronic unit includes

A mechatronic assembly combines hydraulic and electronic components in one unit. The exact content, layout and connector position vary between DSG families — the list below describes the general anatomy.

Hydraulic valve body

Cast block containing the hydraulic channels, spool valves and pressure regulation circuits that route fluid to the clutches and shift actuators.

Solenoid valves

Electrically driven valves that control clutch pressure and gear actuation in response to signals from the control unit.

Sensors

Hydraulic pressure sensors, and on most families input / output speed and temperature sensors used by the control unit for closed-loop control.

Transmission control unit (TCU)

The electronic module integrated into the assembly. It runs the shift strategy, reads sensor inputs and drives the solenoid valves.

Connector interface

Vehicle-side connector and internal wiring that link the mechatronic unit to the transmission harness, power supply and CAN network.

Hydraulic sealing interface

Mating face and seals that separate the mechatronic unit from the gearbox housing and the oil circuit.

DSG mechatronic replacement units & prices

Refurbished DSG mechatronic unit for the DQ380 (7-speed wet DSG), OEM part number 0DE325065G (0DE 325 065 G). Supplied as a complete assembly with the integrated control electronics.

Replacement unit EUR 880.00

Exchange unit Price on request

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DQ380 Exchange available

DQ380 DSG mechatronic unit — 0DE927709A

Refurbished DSG mechatronic unit for the DQ380 (7-speed wet DSG), OEM part number 0DE927709A (0DE 927 709 A). Supplied as a complete assembly with the integrated control electronics.

Refurbished DSG mechatronic unit for the DQ381 (7-speed wet DSG), OEM part number 0GC325065G (0GC 325 065 G). Supplied as a complete assembly with the integrated control electronics.

Replacement unit EUR 880.00

Exchange unit Price on request

Request a Quote

DQ381 Exchange available

DQ381 DSG mechatronic unit — 0GC927709A

Refurbished DSG mechatronic unit for the DQ381 (7-speed wet DSG), OEM part number 0GC927709A (0GC 927 709 A). Supplied as a complete assembly with the integrated control electronics.

Refurbished DSG mechatronic unit for the DQ400E (6-speed hybrid DSG), OEM part number 0DD325101J (0DD 325 101 J). Supplied as a complete assembly with the integrated control electronics.

Replacement unit Price on request

Exchange unit Price on request

Request a Quote

DQ400E Exchange available

DQ400E DSG mechatronic unit — 0DD325473

Refurbished DSG mechatronic unit for the DQ400E (6-speed hybrid DSG), OEM part number 0DD325473 (0DD 325 473). Supplied as a complete assembly with the integrated control electronics.

Refurbished DSG mechatronic unit for the DQ500 (7-speed wet DSG), OEM part number 0BH325065G (0BH 325 065 G). Supplied as a complete assembly with the integrated control electronics.

Replacement unit EUR 880.00

Exchange unit Price on request

Request a Quote

Open a specific DSG family

DQ200

DQ200 — 7-speed dry DSG

Dry-clutch family; fault codes often relate to the mechatronic accumulator, clutch adaptation and the 6th/Reverse shift fork.

Open DQ200 mechatronics page DQ250

DQ250 — 6-speed wet DSG

Wet-clutch family; fault codes commonly involve hydraulic control, speed sensors and gear engagement.

Open DQ250 mechatronics page DQ380

DQ380 — 7-speed wet DSG

Wet-clutch family; fault codes frequently concern hydraulic control and sensor behaviour.

Open DQ380 mechatronics page DQ381

DQ381 — 7-speed wet DSG

Wet-clutch family; fault codes often involve hydraulic control, sensor behaviour and the TCU.

Open DQ381 mechatronics page DQ400E

DQ400E — 6-speed hybrid DSG

Hybrid DSG family; fault codes can involve hydraulic control and the hybrid control interface.

Open DQ400E mechatronics page DQ500

DQ500 — 7-speed wet DSG

High-torque wet-clutch family; fault codes often relate to hydraulic control, clutch cooling and the mechatronic unit.

Open DQ500 mechatronics page

Two ways to source a mechatronic unit

Replacement unit

A replacement mechatronic assembly supplied outright, including electronics, matched to your DSG family and part number.

Exchange unit

Where available, an exchange unit returns a reconditioned assembly in place of your old one. The exchange price depends on the model.

Indicate exchange interest in the quotation request and we will confirm availability for your unit.

What we need to match the correct unit

Vehicle details Make, model, year and, where possible, the VIN, so the fitted transmission can be confirmed.
Part number The part number from the existing mechatronic unit — the most reliable identifier.
Fault codes Any stored fault codes, which often confirm the fault is on the control side.
Symptoms What the vehicle does and when, so the diagnosis can be checked against the unit.

Frequently asked

Questions about DSG mechatronic units

Is a mechatronic unit a complete gearbox?

No. The mechatronic unit is a component of the transmission — the hydraulic control block and the electronic control unit combined. It is not a complete gearbox and it is not supplied as a bare electronic module.

Do you supply the mechatronic unit with electronics?

Yes. DSG Clinic supplies mechatronic units as complete assemblies, including their electronics, matched to the DSG family.

What is an exchange unit?

An exchange unit returns a reconditioned assembly in place of your old one. Where exchange is available, the exchange price depends on the model. Indicate exchange interest in the quotation request.

How do I know which mechatronic unit fits my car?

The part number from the existing unit is the most reliable identifier, together with the DSG family and, where possible, the VIN. Vehicle make and model alone is not reliable.

Can a mechatronic unit be repaired instead of replaced?

It depends on the fault. Some faults are mechanical or hydraulic and may be repairable; others require replacement of the assembly. Send the fault codes and symptoms and we will advise.

Send us your unit details

Send the VIN, the mechatronic part number and any fault codes and we will confirm the correct unit and price.

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