Exhaust Citroen C4 Grand Spacetourer (2018-2022)

The exhaust system for Citroën C4 Grand Spacetourer (models 3A_, 3E_) is compatible with several engine types: petrol engines 1.2, 1.5, 1.6, and 2.0 liters. There are also specific variants for diesel engines such as the 1.6 BlueHDi.

The exhaust system mainly consists of flexible exhaust pipes and rear silencers (mufflers). Flexible pipes reduce engine noise and vibrations while absorbing thermal expansion from hot exhaust gases. Rear silencers vary in length and weight depending on the model.

Flexible exhaust pipes come in various diameters and lengths, with prices including VAT as follows :

• 45mm diameter: 100mm (€9.68), 200mm (€16.94), 250mm (€20.57), 300mm (€21.78)
• 55mm diameter: 100mm (€12.10), 200mm (€19.36)
• 60mm diameter: 100mm (€13.31), 300mm (€27.83)

These pipes help decrease noise and vibration while accommodating exhaust gas temperatures.

Rear silencers vary in length and weight. Key length options include 640mm, 650mm, 670mm, 740mm, 810mm, 820mm, 930mm, 950mm, 1030mm, 1450mm, and up to 2100mm. Weights range from 3.75kg to 8.08kg depending on the model. The standard size is 740mm long with a weight of 5.76kg.

The price for a new exhaust muffler varies between €51.99 and €290.50, depending on the type (universal or sport) and technical specifications of the muffler.

Common symptoms of a faulty exhaust muffler include :

• Unusual or louder exhaust noise
• Loss of engine power
• White smoke emitting from the exhaust
• Leaks of oil or other liquids
• Visible holes or cracks
• Advanced corrosion or rust

Recognizing these signs early can help avoid further damage.

For minor damages like small leaks or holes, temporary repairs can be done using high-temperature repair tape or mastic. However, for more severe damage such as widespread corrosion or cracks, replacing the entire exhaust muffler is the recommended solution for optimal reliability and performance.

Yes, specific catalytic converters exist for certain engines, such as the EURO 6 catalytic converter designed for the 1.6 BlueHDi engine with SCR technology. These are important for meeting emission standards and reducing pollution.

Additionally, quality particulate filters (DPF) and catalytic converters are available that comply with strict European regulations and are manufactured to high standards, ensuring durability and efficiency.