Description
Jaguar ECU Replacement Service – 3.0 Diesel / 306DT – Fully Programmed Plug & Play
Jaguar ECU Replacement & Programming Service
At MotorTronics, we offer a complete replacement and programming service for Jaguar vehicles fitted with the 306DT engine management system. If your original ECU has failed, we can supply and fully program a replacement unit, making it a true plug-and-play solution.
The Jaguar 306DT is a highly popular 6-cylinder common-rail diesel engine used across a wide range of Jaguar models from 2007 onwards. These vehicles utilise various control units which can suffer from internal failures, software corruption, water damage, and communication issues.
Our service allows you to replace a faulty ECU without the expense of purchasing a brand-new unit from the dealership. We can transfer all necessary vehicle data from your original ECU, or synchronise a replacement unit to your vehicle’s immobiliser system and keys, ensuring seamless installation.
Common ECU Fault Symptoms
This service is suitable if your vehicle is experiencing any of the following faults:
- No communication with diagnostic equipment
- ECU not responding or completely offline
- Internal ECU hardware failure
- Water damaged control unit
- Vehicle will not start
- No injector pulse or injector control
- Engine misfire issues
- Intermittent running faults
- Persistent fault codes despite replacing components
- Failed software update or interrupted remap
- Internal control module faults
Supported ECU Types
We regularly replace and program the following ECU variants, including but not limited to:
ECU Families
- EDC17CP55
Common Part Numbers
- 306DT Engine
- Diesel 3.0L
- GW93-12C520-PAC
- 0281032668
If your ECU part number is not listed, please contact us as we support many additional variants.
What’s Included?
✔ Supply of replacement ECU (where required)
✔ ECU cloning and data transfer
✔ Immobiliser synchronisation
✔ Key programming integration
✔ Full software programming and coding
✔ Plug-and-play installation solution
✔ Bench testing and verification
Save Hundreds Compared to Dealer Prices
A replacement ECU supplied and programmed by a Jaguar dealership can often exceed £1,000 once the cost of the new control unit, coding, and labour are included.
Our replacement and programming service provides a cost-effective alternative, allowing you to get your Jaguar back on the road quickly and reliably while saving significant money compared to dealer prices.
If you have a faulty 306DT ECU or are unsure whether your control unit has failed, contact Motortronics today. Our experienced technicians can diagnose the issue and provide the most suitable solution for your vehicle.



