Renault produced dozens of variants of the JB/JH box. The "DF357" specific code denotes:
Swap these plastic parts for brass aftermarket bushings (available from UK specialists like "Trafic Parts Direct"). renault df357
In some Renault models, such as the Megane IV, a damaged ABS ring on a wheel can trigger a cascade of electronic errors, including DF357, which subsequently disables systems like adaptive cruise control and automatic braking. Renault produced dozens of variants of the JB/JH box
If the code is accompanied by ABS-related faults (like DF047 or DF048), inspect the ABS rings and sensors for physical damage from road debris. such as the Megane IV