New Upd | Renault Df104

Renault’s onboard diagnostic logic uses "DF" (Default Fault) codes. The precise meaning of a new DF104 code depends on which Electronic Control Unit (ECU) throws the error:

Renault canceled the DF104 program in April 1976. Most of the 63 cars were leased to Électricité de France (EDF) and the postal service La Poste . Upon return, nearly all were crushed. Only three authentic "New" models are known to exist today—one at the Conservatoire Renault in Boulogne-Billancourt, one in a private collection in Lyon, and one that was exported to a Japanese museum in 1988.

Renault Espace IV, Renault Master , and sometimes Laguna II/Koleos. renault df104 new

The DF104 New is not a classic car. It is a tombstone with a motor.

Modern Renault vehicles use a to allow different computers (ECUs) to talk to each other. For example, the instrument cluster needs to talk to the engine to show RPM, and the ABS module needs to talk to the dashboard to show speed. Upon return, nearly all were crushed

: Often indicates a failure in communication between the vehicle's electronic control units (ECUs) over the CAN bus network. Left Rear Wheel Speed Sensor

Launched quietly in , the "New" DF104 was not a facelift; it was a fundamental re-engineering. Renault had learned the hard way that you cannot simply drop a motor into an R4 chassis and call it a day. The DF104 New is not a classic car

The is a significant, yet common, HVAC fault, particularly in older Espace models. It often signifies that the blower motor power modules have failed or that there is a communication issue due to water damage. By inspecting the power modules and wiring, most of these issues can be resolved.

Some users have reported a distinct clicking noise or issues with the cabin heating elements (TEH) failing to activate due to the fault.