Renault dealerships now offer this as a flat-rate repair (typically 1.5 hours of labour), avoiding the need for a full UCH replacement which previously cost over £600 / €700.
The "Renault dongle fault" refers to a specific security vulnerability in certain Renault models (particularly the Clio, Captur, and Megane) that allowed car thieves to bypass the immobilizer system using a simple OBD2 dongle. This "fault" was widely publicized and subsequently addressed by Renault through software patches. The Vulnerability: Why It Existed The fault was essentially an immobilizer bypass vulnerability The Exploit renault dongle fault patched
Owners and technicians have reported a critical "dongle fault" appearing on diagnostic scans, often accompanied by UCH errors Renault dealerships now offer this as a flat-rate
Renault has addressed this in newer models (starting with the and The Vulnerability: Why It Existed The fault was
Owners typically experienced a terrifying cascade of failures while driving or attempting to start the vehicle:
Typical causes