Citroen C4 Grand Spacetourer Diesel Particulate Filter DPF (2018-2022)

The DPF is a crucial pollution control device that captures and removes soot particles produced by the diesel engine. It operates through two main mechanisms:

• Passive regeneration: Soot particles burn off when exhaust gases reach about 550 to 600°C, typically during highway or high-load driving.
• Active regeneration: When passive conditions are insufficient, the engine management injects extra fuel into the exhaust to raise the filter’s temperature and burn off soot.

This filter helps your vehicle meet strict EURO environmental standards by reducing pollutant emissions.

The diesel particulate filter is located in the exhaust system, usually underneath the vehicle floor, after the catalytic converter. On some newer models, it may be integrated directly within the same metallic structure as the catalytic converter.

The DPF generally requires cleaning or replacement every 120,000 to 180,000 kilometers, depending on driving conditions and vehicle upkeep.

• Maintenance involves lifting the vehicle and disconnecting the exhaust system
• Removal of the old DPF and correct installation of the new unit
• Diagnostic tool use to reset parameters and verify proper functionality

This procedure is recommended to be performed by a professional or authorized garage to ensure durability and compliance with emission standards.

DPFs in these vehicles can be made of:

• Ceramic – commonly used in diesel engines for effective filtration
• Cordierite – a cost-effective material option
• Silicon Carbide (SiC) – prized for high-temperature resistance, superior thermal conductivity, durability, and high filtration efficiency

The choice of material affects the DPF’s thermal and mechanical performance.

To keep your DPF in good condition, it is advised to:

• Regularly perform high-temperature drives on highways at steady speeds (above 3,000 RPM) to promote passive regeneration
• Use fuel additives that assist in maintaining DPF cleanliness
• Utilize the Eolys additive system, often located near the fuel tank, which supports the regeneration process

This helps prevent clogging and ensures optimal emission control performance.

A clogged DPF may cause issues such as:

• Engine hesitation or rough running
• High soot load detected by diagnostic tools (e.g., about 76% saturation)

Early recognition of these symptoms can prevent further damage and costly repairs.

Prices typically range from 600 to 1002 euros depending on supplier and product quality. It is advisable to choose high-quality original or equivalent DPF products to ensure durability and compliance with environmental regulations.

Ordering from trusted sources ensures you receive products manufactured to strict European standards, often with guarantees and fast delivery options.

Recommended sources for detailed technical guides, tutorials, and product information include:

• Official repair manuals and technical reviews specialized for Citroën models
• Automotive forums and communities for C4 and Grand Spacetourer owners sharing real-life experiences
• Video tutorials by experienced mechanics illustrating DPF cleaning and replacement procedures

Additionally, professional suppliers offer technical support and fitting instructions to ensure correct installation and operation of your DPF and catalytic converter systems.