Where is the O2 sensor on a Renault modus1-5dci?

On a Renault Modus 1.5 dCi, the O2 sensor is typically located in the exhaust system. There are generally two O2 sensors: one before the catalytic converter (upstream) and another after it (downstream). You can find the upstream sensor near the engine, connected to the exhaust manifold, while the downstream sensor is located further along the exhaust pipe, near the catalytic converter. To access either sensor, you may need to lift the vehicle for better visibility and reach.