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Toyota Highlander

1MZ-FE 3.0L V6 220 hp Automatic SUV 2001–2007
– Be Careful
Engine 1MZ-FE – Be Careful 4,700–13,700 €

3.0L V6 from the early 2000s. The oil sludge problem on 1997-2002 models is notorious — PCV valve design + narrow cooling passages with neglected oil changes. Toyota issued a repair program. From 2003 with revised PCV, no longer a systematic issue. Rear valve cover gasket likes to leak — poor access.

Fun Factor? Decent

Highlander XU20 V6 — family SUV with sludge history

220 hp V6 in the first Highlander. Oil sludge on 2001-2003 is THE topic — check oil change records. Engine fundamentally robust when maintained. Camry-based platform: drives like a car, not a truck.

Engine Weaknesses 3

!! PCV-Ventil-Design + enge Kühlkanäle führen zu Ölschlamm-Bildung bei vernachlässigten Ölwechseln. Toyota hat Reparaturprogramm gestartet. Besonders 1997-2002.

PCV valve design + narrow cooling passages cause sludge buildup with neglected oil changes. Toyota issued repair program. Especially 1997-2002.

Symptoms: Thick black oil, oil pressure loss, engine noise, check engine light

1,500–5,000 € from 100,000 km
!! Bei Laufleistungen über 200.000 km können Kopfdichtungen versagen. Eher seltenes Risiko bei gut gewartetem Motor.

Head gaskets can fail past 200k km. Rather rare risk on well-maintained engines.

Symptoms: Overheating, coolant loss, white smoke

1,200–2,500 € from 200,000 km
! Hintere Ventildeckeldichtung schwer zugänglich. Öl tropft auf Abgasanlage — Geruch und Rauchentwicklung.

Rear valve cover gasket with poor access. Oil drips onto exhaust — smell and smoke.

Symptoms: Oil smell, slight smoke from engine bay

500–1,200 € from 120,000 km

Vehicle Weaknesses 1

!! Other Gleiche 1MZ-FE-Problematik wie beim Camry XV30. Toyota Reparaturprogramm abgelaufen. Ölwechsel-Historie beim Kauf prüfen.

Same 1MZ-FE issue as the Camry XV30. Toyota repair program expired. Check oil change history when buying.

1,500–5,000 € from 100,000 km

Reports & Tests

nhtsa_complaints NHTSA Complaint Summary 2026-03
Below Average

1644 owner complaints filed with NHTSA (2001–2007). Most reported: Brakes (248), Visibility (240), Cruise Control (215).