Renault Diagnostic Trouble Codes
Common OBD2 fault codes found on Renault vehicles with model-specific causes, known issues, TSBs, and adjusted repair cost estimates. Each guide is tailored for Renault owners.
Emissions
Fuel System
Turbocharger/Supercharger "A" Overboost Condition
Renault Megane RS • 2010-2024
The 2.0T (F4R) in the Megane RS is known for wastegate rattle and eventual sticking. The 1.6 TCe als...
System Too Rich at Idle (Bank 1)
Renault Megane • 2003-2023
Megane models with the 1.6 and 2.0 16V petrol engines trigger P2188 from leaking fuel injectors and ...
Misfire
Ignition
Electrical
Vehicle Speed Sensor "A" Malfunction
Renault Megane • 2006-2024
The Megane II and III use a speed sensor on the gearbox that is accessible from under the vehicle. T...
System Voltage Low
Renault Clio • 2005-2024
The Clio III and IV with the 1.5 dCi engine can develop serpentine belt tensioner failure, causing t...
Serial Communication Link Malfunction
Renault Megane • 2003-2023
Megane II and III models are prone to ECU failures caused by solder joint cracking on the circuit bo...
Transmission
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