New turbo Kia Hyundai 1.7 CRDI 794097-0003 7940970003 794097-3 7940973 794097-5003 7940975003 794097-5003S 7940975003S 28201-2A850 282012A850 GTB1244VZ

ix35 1.7 CRDi (85kW – 115/116PS)
i40 1.7 CRDi (85kW – 115/116PS)
i40 1.7 CRDi 100kW/136PS
Tucson III (TL) 1.7 CRDi (85kW – 115/116PS)

Kia :
Carens IV 1.7 CRDi 85kW/115PS
Carens IV 1.7 CRDi 100kW/136PS
Optima 1.7 CRDi 100kW/136PS
Sportage III 1.7 CRDi (85kW – 115/116PS)
Sportage IV 1.7 CRDi (85kW – 115/116PS)

Silnik :
1.7 CRDi | R-engine

Turbocharger GTB1244VZ – Symptoms of Failure

Engine: 1.7 CRDi (R-engine)
Turbo model: GTB1244VZ (Variable Geometry Turbo – VNT)
Power range: 85 kW (115–116 PS) / 100 kW (136 PS)

Compatible Vehicles

Hyundai

• Hyundai ix35 1.7 CRDi (85 kW)
• Hyundai i40 1.7 CRDi (85 kW / 100 kW)
• Hyundai Tucson 1.7 CRDi (85 kW)

Kia

• Kia Carens 1.7 CRDi (85 kW / 100 kW)
• Kia Optima 1.7 CRDi (100 kW)
• Kia Sportage 1.7 CRDi (85 kW)
• Kia Sportage 1.7 CRDi (85 kW)

Common Symptoms of Turbocharger Failure

1. Loss of Engine Power

• Sluggish acceleration
• Weak or delayed boost
• Reduced performance at higher RPM

2. Excessive Exhaust Smoke

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

3. Unusual Turbo Noises

• High-pitched whistling or siren sound
• Grinding or metallic noise (bearing or shaft damage)

4. Increased Oil Consumption

• Frequent oil top-ups
• Oil traces inside intercooler hoses

5. Boost Pressure Problems

• Underboost or overboost fault codes
• Check engine light
• Limp mode activation

6. Variable Geometry (VNT) Issues

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

7. Excessive Shaft Play

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

Common Causes

• Extended oil change intervals
• Low-quality engine oil
• Blocked oil feed/return lines
• Carbon buildup from EGR system
• Improper engine shutdown after heavy load

Recommendation

If your Hyundai or Kia equipped with the 1.7 CRDi (R-engine) shows any of these symptoms, immediate inspection of the turbocharger and lubrication system is recommended. Continued driving with a failing turbo can lead to severe engine damage or complete turbo failure.