Exhaust Renault Talisman (2015-2022)

Common exhaust problems for the Renault Talisman, especially the 1.6 dCi 160 hp and 2.0 Blue dCi diesel engines, include unpleasant exhaust smells inside the cabin, leaks at the EGR valve (including cooler or bypass exchanger), faulty exhaust flaps, and unusual noises caused by wear. These issues typically occur between 80,000 and 130,000 kilometres due to exposure to shocks, acidic humidity, and vapour under the vehicle.

The most reported cause of exhaust odours in the cabin when stationary with heating (without air conditioning) is leaks in the EGR system. Possible sources include:

• Leak at the EGR valve cooler shaft requiring substantial labour.
• Faulty EGR valve or bypass exchanger due to crimping defects.
• Injector seals, which can allow fumes without losing engine power.
• Less commonly, exhaust line or cylinder head gaskets, but only with other issues present.
• Cabin filter issues, though this is less likely.

Immediate professional diagnosis with special attention to the EGR is recommended to ensure safety and proper repair.

Mechanical exhaust issues on the Renault Talisman may include:

• Faulty exhaust flaps causing noise or malfunction, often requiring inspection of the flap motor and electrical connections.
• Exhaust leaks combined with air conditioning malfunctions due to defective flap actuators or servomotors.
• Noisy exhaust systems caused by wear from impacts or moisture beneath the chassis.
• Possible related oil leaks on 1.6 dCi 160 engines that can indirectly affect the exhaust system.

Regular oil level checks and maintenance every 10,000 km help limit these issues.

Exhaust problems are mainly reported on diesel models of Renault Talisman, particularly the 1.6 dCi 160 hp and 2.0 Blue dCi engines. These issues appear mostly on Phase 1 and Phase 2 versions from 2015 onwards. Petrol models have not shown significant exhaust system concerns.

Preventive measures for the exhaust system include:

• Regular DPF cleaning and FAP regeneration at speeds above 3000 rpm.
• Engine oil changes every 10,000 km and regular inspection of the EGR valve and undercarriage every 20,000 km.
• Inspecting exhaust components for damage caused by shocks, moisture, or acidic vapours under the vehicle.

Early detection and proper maintenance can significantly reduce repair costs and improve vehicle performance.

Costs vary depending on the fault and repair complexity:

• EGR valve cooler shaft leak: Parts around £260-420, with labour time up to a full day or 8-10 hours in workshop; total cost can reach £1700-£2100.
• Faulty EGR valve or bypass exchanger: Approximately £1800-£2000 including partial warranty coverage.
• Other issues like injector seals or minor gasket repairs typically have lower or unspecified costs.

Labour costs are notably high due to the complex dismantling required. Partial warranty may apply depending on vehicle mileage and dealer policies.

Useful sources for in-depth Renault Talisman exhaust diagnostics and user experience include:

• PlaneteRenault.com forums with discussions on EGR and exhaust odours.
• Forum-Auto.Matmut.fr featuring repair quotes and diagnosis for EGR valve issues.
• Communities like MyCarly.com with OBD diagnostics suggestions for exhaust flap and climate control problems.
• My-Procar.com for repair sheets dedicated to noisy exhaust and smell issues.

These platforms help guide diagnostics and troubleshooting for owners and technicians.

The Renault Talisman exhaust system includes components such as:

• Exhaust silencer which reduces noise emissions from the engine.
• Flanges connecting sections of the exhaust pipe.
• EGR valve and its cooler or bypass exchanger, critical for reducing nitrogen oxide emissions.
• Exhaust flaps that regulate flow, often linked to engine efficiency and emissions.
• The DPF (Diesel Particulate Filter), which traps soot and particulates from diesel engines.

Proper maintenance of these components ensures compliance with environmental standards and optimal engine performance.

If issues arise, professional diagnostics and repairs are advised to maintain vehicle safety and reliability.