Renault Df357 Hot 📥

The Renault fault code DF357 typically refers to a communication or sensor issue within the vehicle's electronic systems, specifically related to the brake contact information or the CVT transmission. Common Meanings for DF357

3. The "Hot Start" Problem (The "Ugly" Hot) Another classic DF357 quirk. The engine starts beautifully when cold, but once it reaches operating temperature (sitting at "hot" idle), it refuses to restart for 30-45 minutes. renault df357 hot

What is the DF357?

Let’s be clear: you will not find a DF357 in a standard Renault 5, 18, or Fuego. According to surviving notes from retired Renault Sport engineers (shared on enthusiast forums like RenaultClassic.co.uk), the DF357 was a homologation special prototype. The Renault fault code DF357 typically refers to

Turbine Temperature Sensors: Some Renault models use specific exhaust gas temperature sensors that, if failing, might report a "hot" condition to the ECU. Recommended Next Steps The oil viscosity drops to water

However, in the tuning world, "DF357" has evolved into shorthand for a specific engine configuration: the 1.6-liter 16V K4M or the 2.0-liter F4R engines with factory RS tuning. The confusion arises because the part number stamped on the ECU case is DF357.

While a short drive to a service center "shouldn't" hurt, driving long distances with a transmission fault code active can lead to permanent internal damage. If the car enters limp mode, it is telling you that it can no longer safely manage the transmission's gear ratios or pressures.

  1. LED Headlights: High-intensity LED headlights with automatic high-beam switching, providing improved visibility and safety during nighttime driving.
  2. Rain-Sensing Windshield Wipers: Rain-sensing windshield wipers with adjustable sensitivity, ensuring optimal visibility during inclement weather conditions.
  3. Remote Engine Start: A remote engine start system, allowing drivers to start the engine from a distance using a smartphone app.
  1. The oil viscosity drops to water. Main bearings begin to starve.
  2. The aluminum cylinder head begins to warp.
  3. The pre-combustion chambers (an indirect injection feature) can crack and fall into the piston.