O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)

What does this mean?

Code P0135 indicates a malfunction in the heater circuit of the upstream O2 sensor on Bank 1. The heater brings the sensor to operating temperature quickly.

Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Mini Paceman models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.