Fault code P0241 – a step-by-step guide to diagnosing and fixing it

Error code P0241 is displayed and the check engine light is on - what does this mean?

The DTC P0241 is recognized by the OBD system when a problem is detected with the turbocharger boost pressure control valve. This fault code indicates a malfunction in the turbocharging system, which can lead to reduced engine performance.

What causes can this fault code have?

• Defective turbocharger boost pressure control valve
• Damaged vacuum lines to the turbocharger
• Defective turbocharger servomotors
• Loose or corroded plug connections
• Worn turbocharger vanes
• Defective boost pressure sensor
• Clogged air filter
• Faulty engine control unit software

What symptoms occur in parallel with fault code P0241?

• Power loss: Significantly reduced engine power, especially during acceleration
• Black smoke: Dark exhaust fumes from the exhaust
• Unsteady idling: Engine runs irregularly at idle speed
• Increased fuel consumption: Noticeably higher diesel consumption
• Whistling noises: Unusual noises from the engine compartment
• Emergency running program: Vehicle switches to safety mode

How can the problem with error code P0241 be rectified?

• Repairing EOBD error code P0241 requires a systematic diagnosis of the turbocharger components.
• Replace the turbocharger control valve: Replace defective boost pressure control valve with new original part and check vacuum lines
• Replace vacuum lines: Check all hoses and connections to the turbocharger for cracks and replace damaged parts
• Repair the turbocharger actuator: Test the electric actuator of the turbocharger and replace with new motor if defective
• Calibrate the boost pressure sensor: Clean the sensor, recalibrate it or have it completely replaced if defective
• Clean the air filter and intake tract: Remove blockages and thoroughly clean all intake components
• Update the engine control unit: Carry out a software update and have the control unit reprogrammed