The THP (Turbo High Pressure) engine that equips the Citroën C4 Lounge is widely recognized for offering powerful and enjoyable driving performance, but it requires rigorous preventative maintenance to remain reliable. It’s not an engine to be neglected, as its direct injection technology makes it susceptible to specific problems.
One of the most common and expensive problems is… carbonization (accumulation of carbon residue) on the intake valves. This occurs because the fuel does not pass through them to clean them, requiring specialized decarbonization every 40,000 or 60,000 km. Another recurring failure is in timing chain tensionerwhich can exhibit premature wear and cause a loud metallic noise when starting.
Furthermore, the high-pressure fuel pump (HPFP) It is a wear part that fails frequently, leading to loss of power and difficulty starting the car. To keep the THP engine in good condition, it is essential to use high-quality synthetic oil and change the automatic transmission fluid every 40,000 km.
Confira aqui Promoções que separamos em peças e acessorios para seu Citroen. Nos melhores Marketplaces
Amazon
