Exhaust Renault Kadjar (2015-2022)

Owners of the Renault Kadjar frequently report exhaust system problems such as defective valves/dampers, black smoke emissions, unusual exhaust odors, abnormal noises (knocking, buzzing), rust, and faults related to gas treatment components like NOx sensors and DPF (Diesel Particulate Filter). These issues often affect 2019 petrol models and diesel models like the Energy dCi 130 and 4x4 variants.

Common symptoms include black smoke and power loss, signaling rich fuel combustion often from clogged injectors, dirty air filters, or faulty sensors (MAF, TPS). Valve or flap malfunction noises especially on 2019 petrol models, exhaust odors often in diesel versions, abnormal sounds such as knocking or buzzing linked to rust or loose mountings, and warning engine lights related to NOx or DPF faults.

Black smoke usually indicates incomplete combustion caused by:

• Clogged fuel injectors due to carbon deposits or dirt
• Dirty air filter restricting airflow
• Faulty sensors such as Mass Air Flow (MAF) or Throttle Position Sensor (TPS)

Check dashboard warning lights and scan for OBD-II fault codes to diagnose these problems accurately.

Recommended maintenance intervals for the Kadjar exhaust components are:

• Exhaust system inspection every 20,000 km
• Catalytic converter check or replacement around every 100,000 km
• Muffler inspection or replacement between 60,000 to 80,000 km

Follow these guidelines during routine vehicle servicing to avoid premature wear and failures.

Exhaust odors, especially in diesel Kadjar Energy dCi 130 models, or unusual noises such as knocking or buzzing can signal leaks, rust, or loose fixings. Immediately stop driving and have the vehicle inspected by a qualified technician to prevent worsening of the issue and to maintain safety.

The exhaust system routes engine gases, reduces noise, lowers temperatures, and controls emissions. Key parts include the catalytic converter (with precious metals like platinum, palladium, and rhodium) and lambda sensors that regulate the air-fuel mixture. Proper functioning of these parts optimizes engine performance, fuel consumption, and pollution control.

Neglect or damage can lead to excess consumption, increased emission, noise fines, and power loss.

Diagnosis usually includes:

• Checking and cleaning air filter and fuel injectors
• Road test to observe RPM and performance
• Scanning vehicle with OBD-II for error codes related to sensors or DPF
• Calling a professional to examine NOx sensors and Diesel Particulate Filter (DPF) if applicable

Early detection helps prevent expensive repairs and prolong vehicle life.

Krosfou offers high-quality, 100% European-manufactured exhaust components including catalytic converters and DPFs with 3-year warranty and compliance to European regulations. Our stainless steel parts and advanced technology provide durability and performance suited for Kadjar petrol and diesel models.

For installation guidance, technical support, and professional advice, contact authorized specialists or visit trusted garages. Always verify part compatibility by vehicle model, engine type, and ensure proper assembly following manufacturer instructions.