New turbo BV39 Seat Skoda Vw 1.4 TDI 54399880054 54399700054 5439-970-0054 045253019J 045253019JX 045253019JV

New turbocharger replacment BV39 1.4 TDI | BMS BWB

54399880054 54399700054 5439-970-0054 045253019J 045253019JX 045253019JV

Seat Cordoba II 6L 1.4 TDI (59kW/80PS) BMS BWB

Volkswagen Polo IV 1.4 TDI (51/59kW - 70/80PS) BWB BMS

Turbocharger BV39 – Symptoms of Failure

Engine: 1.4 TDI (BMS / BWB)
Power range: 51–59 kW (70–80 PS)
Turbo type: BV39 (Variable Geometry Turbo – VNT)

Compatible Vehicles

Seat

• Seat Cordoba II 1.4 TDI 59 kW (BMS/BWB)
• Seat Ibiza III 1.4 TDI 59 kW (BMS/BWB)
• Seat Ibiza IV 1.4 TDI 59 kW (BMS/BWB)

Škoda

• Skoda Fabia II 1.4 TDI 59 kW (BMS/BWB)
• Skoda Roomster / Praktik 1.4 TDI 59 kW (BMS/BWB)

Volkswagen

• Volkswagen Polo IV 1.4 TDI 51–59 kW (BWB/BMS)

Common Symptoms of Turbocharger Failure

1. Loss of Engine Power

• Reduced acceleration
• Weak or delayed boost
• Poor performance under load

2. Excessive Exhaust Smoke

• Blue smoke – oil leaking through worn turbo seals
• Black smoke – insufficient air supply / boost leak
• White smoke – oil entering exhaust

3. Unusual Turbo Noises

• High-pitched whistling or siren-like sound
• Grinding or metallic noise (bearing / shaft wear)

4. Increased Oil Consumption

• Frequent oil top-ups
• Oil inside intercooler or intake hoses

5. Boost Pressure Problems

• Underboost / overboost fault codes
• Check engine light on
• Limp mode activation

6. Variable Geometry (VNT) Malfunction

• Sticking vanes due to carbon buildup
• Irregular turbo response
• Inconsistent boost pressure

7. Excessive Shaft Play

• Radial or axial movement
• Risk of turbine/compressor contact with housing

Common Causes

• Extended oil change intervals or poor oil quality
• Carbon buildup from EGR system
• Blocked oil feed or return lines
• Driving under heavy load without proper warm-up/cool-down
• Overheating or improper shutdown after high-load operation

Recommendation

If your Seat, Škoda, or Volkswagen 1.4 TDI (BMS/BWB) shows any of these symptoms, immediate inspection of the turbocharger and lubrication system is recommended. Continuing to drive with a failing turbo may result in severe engine damage or complete turbo failure.