Programming / Cloning / Adaptation of the GETRAG 7G DCT Control Unit in Mercedes AMG Cars

The GETRAG 7G DCT (Speedshift DCT) is an advanced 7-speed dual-clutch gearbox fitted to the most powerful Mercedes-AMG models. Its TCM control unit needs specialist programming and adaptation. We offer complete programming, cloning and repair services for GETRAG 7G DCT control units.

This is the 7G-DCT, not the 7G-TRONIC

This page covers the GETRAG 7G-DCT — the 7-speed dual-clutch gearbox (AMG Speedshift DCT-7) fitted to the compact Mercedes-AMG models (A45, CLA45, GLA45). If you are looking for the classic 7G-TRONIC (a torque-converter automatic, not a DCT), those are two different gearboxes — you will find our 7G-TRONIC programming scope by contacting the workshop.

Supported Mercedes-AMG models

A45 AMG – W176
CLA45 AMG – C117

GLA45 AMG – X156

What is the GETRAG 7G DCT?

The GETRAG 7G DCT, also known as the AMG Speedshift DCT 7-Speed, is an advanced dual-clutch gearbox developed by GETRAG (now Magna Powertrain) together with Mercedes-AMG. Its defining features are:

Lightning-fast gear changes – under 100 milliseconds
High strength – handles up to 600 Nm of torque
Two clutches – one for the odd gears, the other for the even ones
AMG modes – Comfort, Sport, Sport+, Race (on some models)
Launch Control – the system for optimum racing starts

DCT technology at AMG

Unlike the standard Mercedes 7G-TRONIC gearboxes (an automatic with a torque converter), the DCT uses wet multi-plate clutches running in an oil bath and has no torque converter. That translates into faster responses, lower power losses and a more sporting character.

When is DCT control unit programming needed?

Programming the GETRAG 7G DCT control unit is essential in the following cases:

Replacing a faulty TCM control unit – an electronic or a mechanical failure
After a DCT gearbox repair – clutch replacement, mechatronics
Fitting a used control unit – a module from another vehicle
Communication faults – the control unit does not talk to the ECU
After a software update – when re-adaptation is required
Dropping into limp mode – limp mode with no mechanical cause

Our GETRAG 7G DCT programming services

1. Control unit cloning

If you have the original, working control unit, we can carry out a full clone:

A complete configuration read from the original TCM
Transfer of all the data onto the new module
Copying of the adaptation parameters – keeping the shift characteristics
VIN and code synchronisation – full compatibility with the vehicle

2. Restoring the Virgin state

For control units that come from other vehicles, or that are damaged:

Clearing the vehicle data – removing the VIN and the history
Adaptation memory reset – a clean learning profile
Preparation for programming through Xentry/DAS
Unlocking the module – when the control unit is locked

3. Adaptation after a gearbox repair

After a mechanical repair of the DCT gearbox we offer:

A reset of the adaptation values
Calibration of the clutch touch points
The basic learning procedure
A road test with a check of the parameters

Why bench programming?

We work with professional programming tools from Launch, Topdon, Flex (MMS), PCMFlash, OBDStar and many others, which allow us to:

Work without the vehicle – programming directly on the TCM module
Full access to the memory – reading and writing every area
Get past the security locks – lawful programming without dealer-only limits
A safe operation – no risk to the vehicle

Signs of GETRAG DCT control unit problems

A damaged or incorrectly programmed DCT control unit can cause:

A message on the display – "7G DCT Transmission Visit Workshop"
Limp mode – locked in 3rd or 5th gear, with no way to change
Sudden/harsh gear changes – especially with a cold gearbox
Vibration when pulling away – problems with the clutch learning
The AMG modes not working – Sport, Sport+, Race inactive
Launch Control misbehaving – the system does not work, or works badly
Fault codes – P0700, P0706, P0715, P17XX, P28XX

Important for AMG owners

DCT gearboxes are very demanding in service. Regular servicing (an oil change every 40-60 thousand km) and avoiding hard driving while the gearbox is cold are the keys to a long life. Programming the control unit will not repair mechanical damage to the gearbox or the clutches!

How the service works

Technical consultation – going through the symptoms and the diagnosis
Removing the control unit – instructions, or help with taking the TCM out
Shipping/Visit – sending it in by courier, or a visit to the workshop
Bench diagnostics – checking the condition and whether programming is possible
Bench programming – cloning, a virgin reset or a repair
Verification – a correctness test and quality control
Returning the module – sent back, or collected in person
Fitting and adaptation – instructions, or help with the adaptation on the vehicle

The benefits of our service

AMG specialisation – experience with high-performance gearboxes
Professional equipment – programming tools from Launch, Topdon, Flex, PCMFlash, OBDStar and dedicated adapters
Fast turnaround – 24-48h as standard, express available
Competitive prices – considerably cheaper than a Mercedes dealer
Technical support – help with the diagnosis and the fitting
Warranty – the certainty of a job done properly

Pricing

Service	Description	Turnaround time
GETRAG DCT cloning	With the original module supplied	24-48h
GETRAG DCT virgin reset	Clearing it to the factory state	24-48h
Adaptation after a repair	Reset + basic calibration	48-72h
Repair/Unlocking	Depending on the problem	48-96h
Bench diagnostics	Assessing the condition and the options	Free with a booked job

* Prices are given over the phone - every case is quoted individually

Get in touch

Do you need programming, cloning or adaptation of a GETRAG 7G DCT control unit? Get in touch to go through the details and to get professional technical advice.

Call for details

Frequently asked questions

What is the GETRAG 7G DCT?

The GETRAG 7G DCT is a 7-speed dual-clutch gearbox developed by GETRAG for Mercedes-Benz and fitted mainly to AMG models. It is known for lightning-fast gear changes (under 100ms) and for coping with high torque. It is also called the Speedshift DCT 7.

Which Mercedes models have the GETRAG 7G DCT?

The GETRAG 7G DCT (type 724.0) is fitted to the compact AMG models: the Mercedes A45 AMG, CLA45 AMG and GLA45 AMG (M133 engine). Three confusions are worth clearing up: the C63 AMG and E63 AMG do not have a DCT – they use the AMG SPEEDSHIFT MCT, a 7G-TRONIC-based design with a start-off clutch in place of the torque converter; while the SLS AMG and AMG GT do have a Getrag dual-clutch gearbox, it is a different design (the 7DCL, a rear-mounted transaxle) with its own control unit; and the S models with the M139 engine (A45 S – W177, CLA45 S – C118, GLA45 S – H247) have the 8-speed AMG SPEEDSHIFT DCT 8G, a different gearbox that this page does not cover.

When is DCT control unit programming needed?

DCT control unit programming is needed after the TCM has been replaced, after a DCT gearbox repair, after the module has been cloned, when the vehicle does not recognise the control unit, or when the module comes from another vehicle and has to be adapted or returned to the virgin state.

Can a GETRAG DCT be programmed without the car?

Yes. With professional programming equipment we can program, clone and virgin-reset GETRAG 7G DCT control units on the bench (bench mode, boot mode), with no need for the car to be present. That speeds the job up and brings the cost down.

How long does GETRAG 7G DCT programming take?

The standard GETRAG 7G DCT programming and adaptation process takes 24 to 48 hours from the moment the module arrives. For local customers we offer an express service completed within one working day.