Repair service by post Bosch MG1 engine ECU

Warranty on repair

Tested in-house

⏱ Turnaround confirmed on receipt

ECU cloning

Porsche, Peugeot, Citroen & Vauxhall Bosch MD1 / MG1 ECU – Unlock, Cloning & Repair

Repair from £179.00Assessment only — £95.00
Assessment fee deducted from an approved repair. Repair is not included in the assessment price.

Bench assessment & quote (deducted from repair)

From £95.00

No VAT added – we are not VAT registered

● Available to order

Choose your service REQUIRED

Bench assessment & quote (deducted from repair)Start here if you are not sure. We test the unit, send a written report and a fixed repair quote. Approve the repair and this fee is deducted. Decline and we return the unit.From £95.00Cloning by post – Porsche MG1Original and compatible donor required. Confirm both labels before sending.From £179.00Cloning by post – Peugeot / Citroen / Vauxhall MD1CS003Original and compatible donor required. Confirm both labels before sending.From £199.00

Unit & vehicle details

Registration *

Part number on unit *

Not on our list for this repair – we will check it before any work starts.

Make *

Model *

Year *

Fault codes and symptoms

Photo of the unit label (recommended)Attached to your order, so we can match the unit when it arrives.

Current selectionBench assessment & quote (deducted from repair)

From £95.00

I confirm the serviceI will send my own unit to T-Tronic Lab.

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Service overview

Supported ECU data transfer, with compatibility checked first.

Locked Bosch engine ECUs: Porsche MG1CP007 and MG1CS047, and Stellantis MD1CS003 and MG1CS032 used in newer Peugeot, Citroen, DS and Vauxhall models. We unlock, clone your data to a replacement or repair your own unit, so you avoid a new ECU from the dealer.

Common faults

No start – ECU not communicating
Used ECU fitted but the car will not start
ECU failure after water ingress or an electrical fault

A fault code alone does not prove the ECU has failed. Send the codes and a label photo on WhatsApp before ordering.

Services

Service	How it works
Bench assessment by post	We check the unit and send a written quote. The fee is deducted if you go ahead.
Cloning	Your data transferred to a replacement ECU with the same part number.
Repair	Repair of your own ECU where possible, tested before return.
Fitting in Mansfield	Bring the car in and we fit and code it, quoted per job.

VEHICLE FITMENT

Compatibility guide

Compatibility is confirmed by part number – include it in your request

SystemECU cloning

Vehicle lists are identification guidance, not a fitment guarantee. Send the complete part number and hardware revision for confirmation before ordering. A similar-looking unit is not proof of compatibility.

Find. Send. Fixed.

How the service works

Find your partCheck image, vehicle and part number.

Send your unitPost it or book a collection.

Initial testingWe inspect and confirm the fault.

RepairThe confirmed fault is repaired.

Final testingRetested before approval for return.

Back to youReturned with a test report.

Repair assurance

Warranty included

Service warrantyCovers the repair we carried out, for the period shown in our warranty terms.

Return for inspectionContact us before returning the unit – we guide you through the inspection.

Costs not coveredVehicle diagnosis, removal, fitting, coding and unrelated faults unless agreed.

Important: water ingress, physical damage, incorrect fitting or third-party modification may be excluded.

Choose your service

Bench assessment & quote (deducted from repair) Quote · £95 deposit Your own unit is tested, the confirmed fault repaired, and returned. Software stays matched to the car. Cloning by post – Porsche MG1 £179 Send your original and a matching replacement. Immobiliser, VIN and coding data are transferred – no extra programming. Cloning by post – Peugeot / Citroen / Vauxhall MD1CS003 £199 Send your original and a matching replacement. Immobiliser, VIN and coding data are transferred – no extra programming.

12-month warranty on repairs
Tracked UK return included
No VAT added
Written report with every unit
Not repairable? Refund less the bench test

Shipping & drop-off

Post the unit to our lab in Rainworth, Nottinghamshire, or drop it in by appointment. Pack it in an anti-static bag with the fault codes and your VIN – see packing instructions. Tracked UK return is included in every price; turnaround is confirmed when the unit arrives.

Fitting in Mansfield

Fitting options are done by appointment at our Mansfield workshop: removal, refit, fault code clear, adaptations and road test. Book after ordering on WhatsApp or by email.

Questions

Repair, cloning or replacement – which do I need?

If your unit has a repairable fault, repair keeps your original and needs no programming. If it is damaged but readable, cloning to a matching used unit is usually cheapest. If it cannot be read or repaired, we quote a replacement with your data transferred where possible.

Will the car need coding after the work?

Not after a repair or a successful clone – the immobiliser and coding come from your original data. Some units need adaptations reset after fitting.

Does a fault code prove the unit is faulty?

No. Supply, earths, wiring, sensors and actuators can set the same codes. That is why every unit is tested first and you get a written report.

What if my unit is not faulty?

You pay only the bench test and receive the report to show your garage.

Do you remove immobilisers or emissions equipment?

No.

Not sure of the part number?

Send a photo of the label on WhatsApp or by email before ordering and we confirm the right service.

Contact hours