KNOWN FAULTS · Toyota

Toyota Corolla (IX) 1.4 / 2.0 D-4D common problems.

2000–2007 · Diesel

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

Applies if: Only the 1.4 D-4D.

Injectors, dual-mass flywheel and oil consumption on the 1.4 D-4D (1ND-TV)Injection / turbo

Engine / equipment: 1.4 D-4D (1ND-TV): Yaris, Yaris Verso, iQ, Urban Cruiser, Corolla, Auris and Verso-S
Period mentioned: Approx. 2001–2018
Symptoms: Hard starting, rough idle, smoke and loss of power; noise or vibration from the flywheel when starting and releasing the clutch; oil consumption.
Possible cause described: Soot builds up in the injectors and EGR valve, especially with many short trips. The dual-mass flywheel wears and, in the worst case, damages the gearbox. Failures of the rail pressure regulator and oil consumption through the turbo or crankcase ventilation are also reported.
Check for the garage: Read the codes, run an injector back-leak test and check the EGR. Listen to the flywheel at idle with the clutch released. Measure oil consumption.
Cost cited in the source: Approx. €1,000–1,600 for dual-mass flywheel and clutch (German guide).A rough figure from the original database, not an up-to-date quote.

Applies if: Only the 2.0 D-4D.

Injectors, dual-mass flywheel, turbo and EGR on the first 2.0 D-4D (1CD-FTV)Injection / turbo

Engine / equipment: First-generation 2.0 D-4D (1CD-FTV): Avensis, Avensis Verso, Corolla, Corolla Verso, RAV4 and Previa
Period mentioned: Approx. 1999–2006
Symptoms: Hard starting, hesitation and loss of power, black smoke; EGR (P0400) or turbo-control codes; flywheel noise.
Possible cause described: Denso injectors that fail often and can hardly be repaired, pump suction control valves (SCV), leaking injector seals and soot in the EGR; also the dual-mass flywheel and turbo. On the second generation (1AD, from 2006) the typical fault is different: head gasket and oil consumption.
Check for the garage: Read the codes, check the fuel filter and for air ingress, test the injectors and SCV valves and clean the EGR before replacing expensive parts.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.