수리 사례

2026. 6. 30. 작업

증상

Turbo Failure Modes (VW TDI VNT15)

처리 내용

Is there any way that the vane actuator could be moving and yet not actually moving the vanes, or is it a positive linkage? There is a positive linkage, but it doesn't mean it isn't working right. However, if the linkage is moving freely, the vanes inside the turbo exhaust housing should be moving. The vacuum can (actuator) is where the problems lie most of the time. You can get an excess of soot buildup within the turbo which can cause the vanes not to move correctly, but again, the actuator rod would not be moving either. Here is an image with several of the major parts annotated: If there is a bearing failure or broken shaft would I be able to detect this before pulling the turbo (say by pulling the compressor inlet or outlet pipes and trying to spin the compressor)? The easiest way to check for bearing failure is to pull the inlet hose off of the turbo, then putting your index finger on the turbo shaft (center of the compressor turbine) and check for end play. If you detect any sid