Exhaust Renault Koleos

The Renault Koleos, especially first and second generation models with the 2.0 dCi diesel engine (160-177 hp), often face exhaust system issues. These include rust on the exhaust pipe, rattling noises, unpleasant odours, and malfunctioning Lambda sensors or exhaust flaps.

Rust on the exhaust pipe is a common corrosion problem affecting all diesel Renault Koleos models. It often produces a droning noise. A temporary fix can be applying wrapping bands and repair putty costing around £20, which stabilises the pipe until a full replacement is possible.

Faulty exhaust flaps can lead to performance issues and unusual noises. The problem usually comes from the actuator or the flap motor needing professional diagnosis and targeted repair.

• Causes include actuator failures or flap motor malfunctions
• Symptoms: erratic exhaust behaviour and noise
• Requires mechanic diagnosis for repair or replacement

These issues are more frequent on diesel versions like the Koleos 2.0 dCi with FAP.

Rattling or knocking noises coming from the exhaust are common in Renault Koleos 2.0 dCi FAP 4x4 diesel models (173 hp). Such noises indicate potential exhaust system looseness or internal component failure and should be checked by a garage for an accurate diagnosis.

• Common on 2.0 dCi diesel models with particulate filter (DPF/FAP)
• May indicate muffler or mounting issues
• Requires professional inspection for safety and compliance

Prompt service can prevent further damage and ensure vehicle emission standards.

Unpleasant exhaust smells and poor performance often stem from a defective Lambda sensor. This sensor controls emissions by measuring oxygen levels in the exhaust gases. Faulty sensors affect catalytic converter operation and emissions treatment.

• Symptoms: exhaust odour, performance loss, warning lights
• Cause: Lambda sensor malfunction or failure
• Solution: sensor replacement by qualified technicians

This is particularly important in diesel engines to maintain emission standards and fuel efficiency.

Regular checks and maintenance are essential, especially for diesel 2.0 dCi engines, to avoid exhaust-related problems:

• Inspect for rust and corrosion on exhaust pipes
• Test sensors and Lambda sensors for proper function
• Check exhaust flaps and actuators for faults
• Schedule DPF (diesel particulate filter) maintenance or replacement as needed

Professional replacement of silencers and exhaust components can be arranged via specialist workshops with express services available in some regions.

Yes, essential exhaust parts for the Renault Koleos include:

• Catalytic converters compliant with emission standards
• Diesel Particulate Filters (DPF) designed for 2.0 dCi engines
• High-quality Lambda sensors and emission control sensors
• Exhaust pipe sections made from corrosion-resistant stainless steel

These components ensure optimal exhaust performance, emissions control, and durability in your vehicle.

For genuine, high-quality exhaust parts and professional support, it is advisable to purchase directly from trusted manufacturers offering original new parts with warranty. Key advantages include:

• 3 years warranty with usage up to 100,000 km
• Certified quality exceeding original equipment standards
• High-performance stainless steel components with advanced monolith technology
• Technical support for product compatibility and installation guidance
• Fast shipping options available in the UK and Europe

Choose quality exhaust parts to maintain your Renault Koleos's emission compliance, performance, and longevity.

For further detailed diagnostics or repairs, always consult qualified automotive professionals familiar with Renault diesel systems.