Was bedeutet der Fehlercode ECM-P004900?

Diagnose und Fehlercodedefinition für ECM-P004900 (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo C70 (2006–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P004900 - Turbocharger/Supercharger Turbine Overspeed. General Failure Information. No sub type information

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

12 Modelle

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Modelle nach Baujahr und Motor anzeigen (40)

Was bedeutet der Fehlercode?

The code concerns turbine overspeed, which the engine control module detects when boost pressure in the turbo system becomes too high.

Mögliche Ursachen

The vacuum line for turbo control is split or has come off
The turbo control valve (VNT governor) is damaged
The turbocharger itself is damaged
The hoses to or from turbo control valve A (wastegate) or B (bypass) have come loose, are blocked or are damaged
The guide rails are binding
The turbo control motor is damaged

Was Sie tun können

1Read the fault code with a diagnostic tool and note whether it is active or only stored
2Make sure the fuses are intact. Their location is in the instruction manual or on the fuse chart
3Check the vacuum hoses and the hoses to turbo control valve A (wastegate) and B (bypass) for cracks, loose connections and blockages
4Check that the turbo control valve moves freely and is not binding
5Have a workshop with diagnostic equipment check the turbocharger and turbo control valves if the fault remains after the hose check
6Road test the car with varying throttle, then read the fault code again to see whether it returns

Symptome, die Sie bemerken können1

Poor performance and lack of power while driving

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.