Renault Dacia Samsung Renault Error Df135

It is almost always an electronic "handshake" issue between your foot and the car's computer. If you'd like to narrow this down further, let me know: What is the exact model and year of your vehicle?

: A weak or depleted 12V battery is a frequent culprit for random "Braking Fault" messages and DF-series codes. Replacing an old battery often clears these phantom errors. renault dacia samsung renault error df135

The connector at the brake switch or the wiring harness leading to the ABS module can fray or corrode, especially in older Renault Clio, Megane, or Dacia Duster models. 📋 Step-by-Step Diagnostic Process Step 1: Check the Brake Lights Have a friend stand behind the car. Are the lights stuck ? (Switch is physically stuck). It is almost always an electronic "handshake" issue

Renault Samsung Motors (RSM) vehicles like the SM3 (Renault Fluence) and SM5 (Renault Laguna-based) share the same electrical architecture. The DF135 code has the same meaning and repair procedure. Replacing an old battery often clears these phantom errors

The Exhaust Gas Recirculation (EGR) valve reduces NOx emissions by recirculating exhaust gas back into the engine. If this valve is stuck open or closed, it disrupts the air-fuel mixture. This leads to incomplete combustion, producing massive amounts of soot that clog the DPF rapidly.

: While DF135 specifically targets the sensor circuit, it often appears alongside "Braking System Fault" messages caused by fluid levels being near or below the minimum line. Immediate Troubleshooting Steps

Do you have any (like a zigzag or a wrench)? Did this start after changing a bulb or a heavy rainstorm?