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Why did the anti-pollution warning light come on in the Renault Kadjar 1.5 dCi?

Model: Renault Kadjar MK 1 - Years 2015-2022
Part: Checks and maintenance

Let's see why the warning light came on in the Renault Kadja 1.5 dCi: it was due to a loss of turbo pressure, caused by a blockage in a specific component, the dosing valve connected to the turbo through a small rubber hose. This valve (also called the "pressure sensor") is located in a very tight position, behind the exhaust manifold. The car has a very high mileage, and the exhaust gases have gradually clogged the hose and the sensor itself, preventing the correct passage of air and pressure reading, causing the engine control unit to turn on the pollution warning light. In addition to the loss of performance, the video warns us that this fault could lead to a progressive clogging of the DPF, with a very expensive repair. The mechanic was able to replace the pressure sensor and its hose without dismantling half of the car using special ratchet and articulated tools from the "EM TOOL" brand that we can find on em-tools.net/catalog.

Posted on 10 September 2025 by ScegliAuto

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