Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is getting a signal from a part that helps control air going into the engine, and the signal is too low. It's like trying to listen to a whisper when you need to hear someone talk normally.
The DISA valve adjusts the length of the intake manifold to optimize performance. The potentiometer measures the position of the DISA valve. This code indicates that the voltage reading from the potentiometer is lower than expected.
The P1537 code is triggered when the Engine Control Module (ECM) detects that the voltage from the DISA valve's potentiometer is below the specified threshold. This can affect the engine's performance as the intake manifold tuning is not functioning correctly.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty DISA valve potentiometer
• Wiring issues such as shorts or open circuits
• Faulty ECM
DISA: Differentiated Intake Manifold
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors to the DISA valve for damage.
• Test the DISA valve potentiometer for proper operation.
• Replace the DISA valve if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $600
Moderate
• BMW 3 Series
• BMW 5 Series
• BMW X5
• Regular maintenance checks
• Avoiding harsh driving conditions
• Timely replacement of faulty components
Sensor Issue
• Get the vehicle inspected by a professional.
• Avoid driving at high speeds until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on emission-related components.
This code has been more commonly reported in vehicles with higher mileage and those that have not had regular maintenance.
Moderate – It should be addressed soon to avoid further engine performance issues.
Driving with a malfunctioning DISA valve can lead to increased emissions and reduced fuel efficiency.
• Engine at operating temperature
• Vehicle stationary
The DISA valve is typically located on the intake manifold of the engine.
Q: What does a DISA valve do?
A: The DISA valve helps optimize engine performance by adjusting the length of the intake manifold.
Q: Can I drive with a P1537 code?
A: While the car may still be drivable, it's best to address the issue soon to prevent further performance problems.
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