U013E – BMW DTC

BMW DTC U013E – Lost Communication With Vacuum Sensor ‘B’

DTC U013E meaning on BMW

The DTC U013E code on a BMW indicates a communication error with the vacuum sensor ‘B’. This means that the vehicle’s onboard computer system is unable to receive data from the specified sensor, which can affect the engine’s performance and emissions control.

BMW DTC U013E symptoms

Symptoms of the DTC U013E code on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Decreased engine performance
• Reduced fuel efficiency
• Inconsistent idling or stalling

BMW DTC U013E causes

The DTC U013E code on a BMW can be triggered by various factors, including:

• Faulty vacuum sensor ‘B’
• Wiring or connection issues in the sensor circuit
• Corrosion or damage to sensor components
• Software glitches in the vehicle’s control module

BMW DTC U013E seriousness

While the DTC U013E code may not cause immediate drivability issues, it is important to address the underlying problem to prevent potential long-term damage to the vehicle’s engine and emissions system. Ignoring this code can lead to increased fuel consumption and emissions, as well as potential engine performance issues.

How to diagnose DTC U013E on BMW

To diagnose the DTC U013E code on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the specific fault codes stored in the vehicle’s computer system.
2. Inspect the vacuum sensor ‘B’ and its wiring for any visible damage or corrosion.
3. Test the sensor’s functionality using a multimeter to check for proper voltage and resistance readings.
4. Check for any loose or disconnected connections in the sensor circuit.

How to fix DTC U013E on BMW

To fix the DTC U013E code on a BMW, consider the following solutions:

• Replace the faulty vacuum sensor ‘B’ with a new, OEM part.
• Repair or replace any damaged wiring or connections in the sensor circuit.
• Clean any corrosion or debris from the sensor components.
• Reset the vehicle’s computer system to clear the fault code and monitor for recurrence.

How to erase DTC U013E on BMW

To erase the DTC U013E code on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code from the vehicle’s computer system.
2. Disconnect the vehicle’s battery for a few minutes to reset the system and clear the code.
3. Drive the vehicle for a short distance to allow the system to relearn and verify the repair.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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