Exhaust Mitsubishi Grandis (2003-2011)

Mitsubishi Grandis owners frequently report exhaust problems such as clattering, excessive noise, unpleasant smells, visible smoke, loss of power, and warning lights on their dashboards. These issues commonly affect the diesel particulate filter (DPF), catalytic converter, pressure sensors, or cause leaks in the system.

Exhaust clattering or noise, especially noticed at idle or acceleration on 2.0 DI-D and 2.4 petrol engines, may be diagnosed through mechanical inspections. Specialists suggest checking for leaks or damaged components such as the muffler or exhaust pipe as initial steps.

Exhaust gas smells and high NOx levels typically result from leaks that can be detected by a smoke test. Repairing leaks is essential to restoring proper function and meeting emission standards. Users have confirmed these symptoms through diagnostic testing.

• Leaks in exhaust pipe or manifold
• Faulty seals or gaskets
• Damage to catalytic converter or DPF system

Prompt repair is recommended to avoid further damage.

When the Diesel Particulate Filter (DPF) pressure falls below normal levels, this usually indicates blockage or malfunction of the filter. Symptoms include visible smoke, reduced engine power, and diagnostic error codes related to exhaust pressure.

• Obstructed or damaged DPF
• Pressure sensor malfunction
• Restricted exhaust flow increasing backpressure

Such issues require professional repair or replacement of affected parts.

An engine warning light connected to the exhaust often signals a faulty pressure sensor or a clogged catalytic converter leading to excessive backpressure. Addressing the root cause promptly is vital to prevent engine damage or poor fuel economy.

• Failing catalytic converter
• Malfunctioning pressure or oxygen sensors
• Blocked exhaust flow causing backpressure

Diagnostic tools such as OBD scanners help pinpoint exact problems.

The exhaust flap regulates exhaust gas flow and noise levels. Mechanical failure of this component usually requires replacement by a qualified workshop as repair costs can vary depending on model and part price. It is key for maintaining proper exhaust conditions and efficiency.

Replacing the exhaust flap involves:

• Inspection of the flap and actuator
• Replacement with a genuine or OEM-quality part
• System calibration and testing after installation

Consult a local certified service centre for accurate pricing and service.

Exhaust and EGR valve issues often present similar symptoms including engine warning lights and performance loss. The root cause is frequently a clogged or malfunctioning EGR valve impairing exhaust recirculation. A low-cost OBD diagnostic ("valise") scan is advised to confirm the fault.

• Clogged EGR valve affecting exhaust flow
• Similar error codes to exhaust sensor faults
• Possible impact on DPF and catalytic converter efficiency

Proper maintenance helps avoid escalating exhaust system damage.

Step-by-step tutorials for replacing exhaust parts like the muffler or exhaust pipe are available online, including detailed illustrated guides and videos. These tutorials cover necessary tools and procedures tailored for Mitsubishi Grandis models.

• Focus on Mitsubishi Grandis 2.0 DI-D and 2.4 petrol engines
• Includes dismantling and installation instructions
• Helps select compatible parts respecting OEM specifications

For genuine new parts such as catalytic converters and DPFs, it is recommended to contact your local expert suppliers or authorized distributors. Direct factory-supplied parts ensure quality, performance, and proper model fitment for your vehicle's country and engine code.

Always verify part compatibility with engine model and vehicle year for best results.