P1106 – BMW DTC

BMW DTC P1106 – Manifold Air Pressure Too Low at Engine Stop

DTC P1106 meaning on BMW

DTC P1106 on a BMW indicates that the Manifold Air Pressure (MAP) sensor detected a lower than expected pressure when the engine was turned off. The MAP sensor measures the pressure inside the intake manifold and helps the engine control unit (ECU) determine the correct air-fuel mixture for combustion.

BMW DTC P1106 symptoms

Symptoms of DTC P1106 on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Engine may stall or have difficulty starting
• Reduced engine performance or power

BMW DTC P1106 causes

The common causes of DTC P1106 on a BMW include:

• Faulty MAP sensor
• Vacuum leaks in the intake system
• Wiring or connector issues in the MAP sensor circuit
• ECU software or hardware problems

BMW DTC P1106 seriousness

While DTC P1106 may not cause immediate harm to the engine, it can lead to poor engine performance and fuel efficiency. Ignoring this fault code may result in further damage to engine components over time.

How to diagnose DTC P1106 on BMW

To diagnose DTC P1106 on a BMW, you can perform the following steps:

1. Use an OBD-II scanner to retrieve the fault code and freeze frame data
2. Inspect the MAP sensor and its wiring for any visible damage or corrosion
3. Check for vacuum leaks in the intake system using a smoke machine or soapy water
4. Test the MAP sensor’s voltage and signal using a multimeter

How to fix DTC P1106 on BMW

To fix DTC P1106 on a BMW, you can try the following solutions:

1. Replace the faulty MAP sensor with a new one
2. Repair any vacuum leaks in the intake system
3. Inspect and repair any damaged wiring or connectors in the MAP sensor circuit
4. Update the ECU software if necessary

How to erase DTC P1106 on BMW

To erase DTC P1106 on a BMW, you can use an OBD-II scanner to clear the fault code from the ECU’s memory. After fixing the underlying issue that caused the fault code, you can reset the Check Engine Light and verify that the code does not return during normal driving.

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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