While the check engine light illuminating on your dashboard can be worrying, understanding this specific code can save you time and money. This article explains what DF135 means, its common symptoms, causes, and how to fix it. DF135 is a manufacturer-specific diagnostic code used by the Renault-Nissan-Mitsubishi Alliance (which includes Dacia and Renault Samsung). In generic OBD-II scanners, it may appear as a P2033 or P242A, but DF135 provides more precise detail.

Have a diagnostic scan performed to confirm DF135 is active. Inspect the wiring first, then replace the sensor. After repair, run a forced regeneration cycle to clear the fault permanently. Disclaimer: This article is for informational purposes only. Always consult a qualified mechanic or refer to your vehicle’s official service manual for specific diagnostic and repair procedures.

If you own a modern diesel vehicle from Renault , Dacia , or the Korean-market Renault Samsung Motors , you might eventually encounter the cryptic diagnostic trouble code (DTC): DF135 .

Exhaust Gas Temperature (EGT) Sensor Circuit (Bank 1, Sensor 2) – Signal too high / Open circuit.