Kia Carens RP

Evolved diesel with slightly more displacement for better pulling power. Smoother than the 1.6 — DPF problems on short trips possible.

• !! EGR valve seized by soot deposits from 90,000 km

  The electronically controlled EGR valve of the D4FD becomes packed with soot deposits and sticks. Cleaning the valve and intake tract is routinely due at around 80,000–100,000 km.

  Symptoms: Judder at low load, engine warning light EGR fault, poor performance in the lower rev range
  150–600 $
  Ad EGR valve D4FD 1.7 CRDiintake manifold D4FD Sportage
• !! Injectors and sealing washer wear from 120,000 km

  Bosch direct injectors of the D4FD can be damaged by poor fuel quality. Copper sealing washers must be renewed every 100,000–150,000 km, otherwise combustion gases escape into the cylinder head.

  Symptoms: Hard starting, uneven running, increased fuel consumption, smoke on start-up
  200–800 $
  Ad fuel injectors D4FD 1.7 CRDi Kia SportageUnterlegscheiben fuel injector D4FD
• !! DPF blockage from approx. 150,000 km from 150,000 km

  From around 150,000 km the D4FD's DPF becomes problematic: blockage causes regeneration failures and oil dilution in the crankcase from fuel injected during forced regeneration.

  Symptoms: DPF warning light, engine power reduction, increased fuel consumption, oil level rises (diesel mixes into oil)
  700–2,500 $
  Ad DPF D4FD 1.7 CRDi Sportage Optimaparticulate filter 1.7 CRDi Kia

+ 4 more engine weaknesses + vehicle weaknesses

Direct-injection four-cylinder with good power output. Prone to intake valve deposits at high mileage — regular cleaning recommended.

• !! High-pressure fuel pump failed from 100,000 km

  The high-pressure fuel pump (HPFP) can wear or fail prematurely. If fuel pressure drops, starting behaviour deteriorates severely; on total failure no start is possible.

  Symptoms: Long cranking, engine barely starts, engine stalls at low rpm, fault code P0087 (fuel pressure too low)
  400–900 $
  Ad high-pressure fuel pump G4FDhigh-pressure fuel pump 1.6 GDi35320-2B100
• !! Carbon deposits on intake valves from 70,000 km

  Direct injection sprays fuel directly into the combustion chamber; intake valves are not washed. Oil carbon deposits accumulate, reducing flow and causing misfires and power loss.

  Symptoms: Rough idle, hard starting, power loss, sporadic misfires during acceleration, increased fuel consumption
  300–800 $
  Ad intake valvee G4FDblast cleaning intake valvee 1.6 GDi
• !! Timing chain noise and elongation from 130,000 km

  The timing chain can stretch with extended oil change intervals or frequent short trips. A hydraulic tensioner compensates for wear initially; extended intervals accelerate wear considerably.

  Symptoms: Rattling or clattering on cold start that subsides after warm-up; engine warning light with cam/crank fault codes
  500–1,200 $
  Ad timing chain G4FDchain tensioner 1.6 GDi Kia24321-2B600

+ 1 more engine weaknesses + vehicle weaknesses