Exhaust Renault Talisman (2015-2022)

The Renault Talisman exhaust system, especially on diesel engine models (1.6 dCi 160 hp or 2.0 Blue dCi), commonly faces issues such as exhaust fumes entering the cabin, leaks around the EGR valve (cooler or by-pass exchanger), defective exhaust flaps, and abnormal noises due to wear. These problems typically appear between 80,000 and 130,000 km, caused by impacts, acidic humidity, and vapors under the vehicle.

Exhaust odors inside the cabin are the most frequently reported issue. Symptoms include unpleasant smells when the car is stationary and the heating is on (without A/C), which disappear when driving or using air recirculation mode. No diesel particulate filter (DPF) or engine faults are usually found despite regular regeneration at high RPMs.

Main causes include:

• EGR valve cooler leak: Leakage at the valve axis confirmed by inspection; repair is labor-intensive and can be costly.
• EGR valve or by-pass exchanger sealing defect: Sudden front odor; some repairs partially covered by Renault under warranty.
• Injector seals: Common on diesels, causing smell without power loss.
• Exhaust line or cylinder head joint leak: Unlikely without other symptoms such as liquid mixing or cold start issues.
• Cabin filter: Should be checked but usually not the cause.

If you experience these odors, it is recommended to immobilize the vehicle or urgently seek professional diagnosis, prioritizing an EGR system check.

Mechanical exhaust problems include:

• Defective exhaust flap: Can cause noise or malfunction; check flap motor and electrical connections.
• Exhaust leak affecting air conditioning: Faulty flap actuator or servomotor may cause odor and A/C failure.
• Noisy exhaust: Often due to wear from shocks and moisture under the chassis, especially on certain engine variants.
• Engine-related oil leaks: On the 1.6 dCi 160 engine, oil or crankcase leaks may indirectly affect the exhaust system; regular oil changes and level checks are essential.

Proper maintenance and inspection can mitigate these issues.

Preventive measures include:

• Regular DPF regeneration by driving above 3000 RPM.
• Oil changes every 10,000 km and frequent oil level monitoring.
• Chassis and EGR system inspections every 20,000 km.
• Prompt attention to any unusual odors or noises to avoid further damage.

These steps help maintain exhaust integrity and vehicle performance.

Exhaust problems predominantly affect diesel engine variants of Renault Talisman Phase 1 and 2 models (from 2015 onwards), such as the 1.6 dCi 160 hp and 2.0 Blue dCi engines. Petrol models have not shown significant related exhaust issues.

Some diagnostics can be done using OBD tools recommended by the Renault and automotive community for checking exhaust flaps and servomotors. However, for detailed diagnosis and repairs such as EGR valve leaks or exhaust line tightness, professional workshop inspection is advised.

• OBD diagnostic tools like Carly are commonly suggested for initial assessments.
• Check for error codes related to exhaust components and actuators.
• Conduct visual inspections for obvious leaks or damage under the vehicle.

Always consult a qualified technician for conclusive diagnosis and repair.

Repair costs vary by issue but generally can be significant, especially for EGR valve cooler leaks that require disassembling the front axle (labor-intensive). Typical costs include:

• EGR valve cooler replacement: Part €300-480, total repair including labor from €2000 to €2500 at Renault garages.
• EGR valve/by-pass exchanger repairs: Around €2100 including partial warranty coverage in some cases.
• Other minor sealing repairs or injector joint replacements vary and are often less costly.

Costs can be mitigated by early diagnosis and preventive maintenance.

Extensive user and technical discussions are available on dedicated automotive forums and communities, where diagnostics and repairs are actively shared:

• PlaneteRenault.com forum for user experiences with EGR and exhaust odors.
• Forum-Auto.Matmut.fr for EGR valve/by-pass discussions and official Renault quotes.
• MyCarly.com for OBD diagnostics and actuator troubleshooting.
• My-Procar.com for specific repair guides and exhaust noise issues.
• EhuaStore.fr for preventive maintenance tips related to 1.6 dCi engines.

For genuine, high-quality exhaust parts like catalytic converters or diesel particulate filters, Krosfou offers European-manufactured products with a 3-year warranty, ensuring compliance with manufacturer standards and superior durability.

For professional assistance, consult certified garages equipped for Renault exhaust system repairs.