Citroen DS4 Catalytic Converter (2011-2015)

Catalytic converters for the Citroën DS4 vary depending on engine type (Diesel or Petrol), engine power, production year, and Euro emission standard (mainly Euro 5 or Euro 6). They are designed specifically for different DS4 generations, including the 2011-2015 models and the 2021+ restyled versions.

Diesel catalytic converters for Citroën DS4 include:

• 1.6 HDi 114 HP (Engine Code DV6C or 9HD) – Euro 5 compliant, suitable for 5-door Diesel DS4 models produced from 2011.
• 2.0 TD HDi FAP (post-2015) – Euro 6 compliant, includes Diesel Particulate Filter (DPF), physical specifications approx. 5.7 kg weight and 400 mm length.
• 1.5 Diesel (Code YHZ, 2021+) – Euro 6 compliant with E-Mark certification, for recent DS4 models (2021-2025).

Always check the engine code and emission standard before purchase for compatibility.

An example suitable for petrol engines is:

• 1.6 THP 155 HP (Engine Code 5FV or EP6CDT) – Power output 156 HP / 115 kW, manufactured for models produced between May and December 2011.

Ensure to match your specific engine code and year for the correct catalytic converter model.

Key technical details include:

• Some Diesel models feature Selective Catalytic Reduction (SCR) technology.
• Typical dimensions for certain catalysts: inner diameter around 16.7 mm, outer diameter approximately 25.2 mm, and a thickness of 1.4 mm.
• Weight and length vary by model, for example, 5.7 kg weight and 400 mm length for 2.0 TD HDi FAP versions.

Certain catalysts fit also related Citroën models such as C4, C5, and DS5, but compatibility should always be checked against engine codes and Euro standards.

Reliable suppliers and sources of Citroën DS4 catalytic converters offer models meeting European certification standards (E24-103R). It is important to choose catalytic converters that:

• Are new and comply with manufacturer specifications and European environmental regulations.
• Feature high-quality stainless steel (INOX 409) and advanced monolith technology for durability and performance.
• Include a 3-year warranty covering use up to 100,000 kilometers.

Always verify the code engine and Euro emission standard of your vehicle before ordering to ensure perfect fit and compliance.

Choosing the correct catalytic converter ensures optimal vehicle performance, compliance with environmental regulations, and longevity of the exhaust system. Key reasons include:

• Proper emission control for your engine type and Euro standard.
• Maintains required pollution reduction standards to avoid legal and environmental issues.
• Avoids engine warning lights related to catalytic converter failure or inefficiency.
• Ensures compatibility with engine sensors and exhaust system layout.

Incorrect choices may cause poor engine performance, higher emissions, and costly repairs.

To select the correct catalytic converter for your vehicle, you should:

• Check the vehicle identification number (VIN) and engine code (e.g., DV6C, 5FV, YHZ) to find precise match details.
• Verify the Euro emission standard required (Euro 5 or Euro 6) for your vehicle's production year.
• Consult the product reference or part number compatible with your vehicle model.
• Review physical dimensions and sensor positions if possible, to ensure fitment.

Many suppliers offer compatibility checks via VIN and technical support to confirm correct choice.

Practical advice for replacement includes :

• Always ensure the engine is cool before starting work on the exhaust system.
• Use correct tools to avoid damage to surrounding components during removal and installation.
• Inspect other exhaust system parts such as DPF and sensors for signs of wear or damage.
• If a catalytic converter warning light is flashing, seek diagnostics to identify root cause before replacement.
• Consider professional fitting to ensure sensor connections and exhaust seals are properly handled.

Proper installation maximizes system efficiency and reduces vehicle emission issues.

For more detailed guidance, consult official repair manuals or trusted technical resources.