P2018 – BMW DTC

BMW DTC P2018 – Intake Manifold Runner Position Sensor/Switch Circuit Intermittent (Bank 1)

DTC P2018 meaning on BMW

The Diagnostic Trouble Code (DTC) P2018 for BMW refers to an issue with the Intake Manifold Runner Position Sensor/Switch Circuit on Bank 1. This code indicates that there is an intermittent problem with the sensor or switch that monitors the position of the intake manifold runner on the engine’s bank 1.

BMW DTC P2018 symptoms

Symptoms of DTC P2018 on a BMW may include:

• Check Engine Light illuminated on the dashboard
• Reduced engine performance or power
• Engine stalling or rough idling
• Decreased fuel efficiency

BMW DTC P2018 causes

Common causes of DTC P2018 on a BMW include:

• Faulty Intake Manifold Runner Position Sensor/Switch
• Wiring or connector issues in the sensor circuit
• Carbon buildup in the intake manifold
• Intake manifold runner control module malfunction

BMW DTC P2018 seriousness

While DTC P2018 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential engine performance problems and further damage. Ignoring this code could lead to reduced fuel efficiency and engine reliability.

How to diagnose DTC P2018 on BMW

To diagnose DTC P2018 on a BMW, you can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes and confirm P2018.
2. Inspect the wiring and connectors related to the Intake Manifold Runner Position Sensor/Switch.
3. Check the sensor’s resistance and functionality using a multimeter.
4. Inspect the intake manifold for any carbon buildup or obstructions.

How to fix DTC P2018 on BMW

To fix DTC P2018 on a BMW, you can try the following solutions:

1. Replace the Intake Manifold Runner Position Sensor/Switch if faulty.
2. Repair any damaged wiring or connectors in the sensor circuit.
3. Clean the intake manifold to remove any carbon buildup.
4. If necessary, replace the intake manifold runner control module.

How to erase DTC P2018 on BMW

To erase DTC P2018 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s ECU. After addressing the underlying issue causing the code, clearing the code will reset the Check Engine Light and monitor the system for any recurring problems.

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

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.