Fault code P1524 – a step-by-step guide to diagnosing and fixing it

Error code P1524 is displayed and the check engine light is on - what does this mean?

The DTC P1524 is a manufacturer-specific error code that is recognized by the OBD/EOBD system and indicates a problem with the fuel pump control or the fuel pressure system. This trouble code mainly occurs in Volkswagen, Audi, Seat and Skoda vehicles and indicates a fault in the engine's fuel supply.

What causes can this error code have?

• Defective fuel pump in the tank
• Clogged fuel filter
• Damaged fuel pump relay
• Defective fuel pressure sensor
• Loose or corroded plug connections
• Damaged wiring to the fuel pump
• Defective fuel pump control unit
• Clogged fuel lines
• Defective fuel pressure regulator

What symptoms occur in parallel with fault code P1524?

• Starting problems: The vehicle is difficult or impossible to start
• Loss of power: Noticeable drop in engine power while driving
• Jerking: Irregular engine running, especially when accelerating
• Stuttering: Engine runs unevenly or stops briefly
• Stalling of the engine: Sudden shutdown while driving
• Increased fuel consumption: Significantly higher consumption than usual

How can the problem with fault code P1524 be rectified?

• Repairing fault code P1524 requires a systematic diagnosis of the fuel system.
• Check fuel pump relay and replace if defective - cost-effective first measure
• Replace the fuel filter, as clogged filters are often the cause of pressure problems
• Test the fuel pump in the tank and replace it completely if the delivery rate is insufficient
• Check all electrical connections to the fuel pump for corrosion and tight fit
• Check the fuel pressure sensor with a multimeter and replace defective sensors
• Check fuel lines for blockages and flush or replace if necessary
• Diagnose fuel pump control unit and have it replaced if malfunctioning