Online shop: Engine management, sensors, parts
Rolling road tuning: Standalone ECU & Renault RS mapping

Clio 172 / 182 Factory restore of ECU (unlock)


ECU unlocking service. Factory reset including removal of 3rd party maps.


We can reset all Clio 172 / 182 ECUs (Sirius 32, 32N, 34 and EMS3134) to factory standard should you find yourself with a locked ECU.

A locked ECU can occur when a 3rd party mapping tool has been used to flash a map to your ECU. Often these maps are locked for IP protection, but can also mean that a tuner can no longer read/write to the ECU in the normal way preventing it from being re-mapped.

By ordering this item and posting your ECU to us we will unlock the ECU, inspect the software, restore it to factory if necessary and return it to you typically within two working days of receiving it.

To do this via post:
Please mark your ECU’s so we know which is which and send them with a covering note which includes your name and return address to:
Mr C. Backshell
EFI Parts
Unit 16 Dewar Court
Astmoor industrial estate

If you have any questions or would like some other work performed with your Renault sport ECU, please don’t hesitate to get in contact.

Additional information

Weight 2000 g
Featured products