New turbo GT1749MV​ Fiat 1.9JTD 8V Euro 4​ Stilo Croma 40080-0001 740080-0002 752814-0001 755042-0001 755042-0002 755042-0003 755373-0001 767835-0001 767835-0003 740080-5001

New turbocharger replacment GT1749MV Fiat 1.9JTD 8V Euro 4 Stilo, Croma 88kW oem: 55205474

740080-0001 740080-0002 752814-0001 755042-0001 755042-0002 755042-0003 755373-0001 767835-0001 767835-0003 740080-5001 740080-5002 752814-2001 752814-5001 755042-2003 755042-5001 755042-5002 755042-5003 755373-2001 755373-5001 767835-5001 767835-5003 740080-5001S 740080-5002S 752814-5001S 755042-5001S 755042-5002S 755042-5003S 755373-5001S 767835-5001S 767835-5003S

GT1749MV Turbocharger for Fiat 1.9 JTD 8V Euro 4 (88 kW) – Main Causes of Damage

The GT1749MV turbocharger, installed in Fiat Stilo and Fiat Croma 1.9 JTD 8V Euro 4 (88 kW) models, is designed for efficiency and everyday reliability. However, several common issues can reduce its lifespan.

Typical Causes of Turbo Damage:

• Extended oil change intervals – Dirty or degraded oil accelerates bearing and shaft wear.
• EGR and intake carbon buildup – Excessive soot restricts airflow and affects variable vane movement.
• Blocked DPF or exhaust restriction – Increased backpressure overheats the turbine and stresses internal components.
• Faulty vacuum control system – Leaks or actuator failure can cause improper boost regulation.
• Hard shutdown after heavy driving – Cutting the engine immediately after high load may lead to oil coking inside the turbo.

Prevention Tips:

• Use manufacturer-approved oil and follow strict service intervals.
• Regularly inspect vacuum lines and turbo actuator operation.
• Maintain a clean intake and EGR system.
• Allow the engine to idle briefly after dynamic driving.

Summary

Proper maintenance and early diagnosis are essential to ensure long service life and stable performance of the GT1749MV turbocharger in Fiat 1.9 JTD 8V engines.