Citroën C4 Cactus Flair PureTech S/S Engine Performance
The Citroën C4 Cactus Flair PureTech S/S is powered by a 1.2 litre turbo petrol engine with Start Stop technology, producing 110 PS and 205 Nm of torque. With 38,000 miles on the clock, this vehicle developed a fault within the emissions system, causing the car to enter limp mode and significantly reduce performance. The issue was linked to the OPF system within the Citroën C4 Cactus Exhaust.

Technical Specifications and Market Position
Designed to deliver a balance of performance and efficiency, the C4 Cactus accelerates from 0 to 62 mph in around 9.5 seconds and reaches a top speed of 117 mph. In this case, an OPF blockage within the Citroën C4 Cactus Exhaust System triggered warning lights and restricted engine output. The customer had previously been advised to replace the unit entirely, highlighting the severity of the restriction within the exhaust system.

Dimensions and Fuel Economy
With practical dimensions and strong fuel economy figures, the C4 Cactus is well suited to everyday driving. However, petrol vehicles fitted with OPF systems can suffer from soot build up over time, especially under short journey driving conditions. This can lead to reduced exhaust flow, increased back pressure, and ultimately limp mode, as experienced here.

DKU Performance Upgrades and Exhaust System Benefits
To resolve the issue, a professional DPF OPF cleaning service using Solution 2 was carried out on the Citroën C4 Cactus Exhaust System. This process removed internal soot deposits, restored exhaust flow, and reduced back pressure within the system to improve overall efficiency and engine response.

Although the cleaning process successfully improved the condition of the exhaust system, the vehicle remained in limp mode due to stored fault codes that could not be accessed on site. A dealer level reset was required to fully clear the system and restore performance. This Citroën C4 Cactus Exhaust cleaning service provided a cost effective alternative to full replacement and directly addressed the root cause within the emissions system.