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P0085 – BMW DTC

BMW DTC P0085 – Exhaust Valve Control Solenoid Circuit Low (Bank 2)

DTC P0085 meaning on BMW

The Diagnostic Trouble Code (DTC) P0085 for BMW refers to an issue with the Exhaust Valve Control Solenoid Circuit on Bank 2. This code indicates that there is a low voltage condition detected in the circuit that controls the exhaust valve solenoid on the second bank of the engine.

BMW DTC P0085 symptoms

Symptoms of DTC P0085 on a BMW may include:

  • Check Engine Light illuminated on the dashboard
  • Engine running rough or misfiring
  • Reduced engine performance
  • Increased fuel consumption

BMW DTC P0085 causes

Common causes of DTC P0085 on a BMW include:

  • Faulty exhaust valve control solenoid
  • Wiring or connector issues in the solenoid circuit
  • Low engine oil level or poor oil quality
  • ECU (Engine Control Unit) software issues

BMW DTC P0085 seriousness

While DTC P0085 may not always result in immediate engine failure, it is important to address this issue promptly to prevent potential damage to the engine and ensure optimal performance and fuel efficiency.

How to diagnose DTC P0085 on BMW

To diagnose DTC P0085 on a BMW, you can follow these steps:

  1. Use an OBD-II scanner to retrieve the fault code and check for any additional codes.
  2. Inspect the wiring and connectors related to the exhaust valve control solenoid on Bank 2 for any visible damage or corrosion.
  3. Test the exhaust valve control solenoid for proper operation using a multimeter.
  4. Check the engine oil level and quality to ensure it meets the manufacturer’s specifications.

How to fix DTC P0085 on BMW

To fix DTC P0085 on a BMW, you can try the following solutions:

  1. Replace the faulty exhaust valve control solenoid on Bank 2.
  2. Repair or replace any damaged wiring or connectors in the solenoid circuit.
  3. Ensure the engine oil level is correct and of good quality.
  4. If necessary, update the ECU software to address any programming issues.

How to erase DTC P0085 on BMW

To erase DTC P0085 on a BMW, you can use an OBD-II scanner to clear the fault code after addressing the underlying issue. Once the problem has been fixed, clearing the code will reset the Check Engine Light and allow you to monitor the system for any recurring faults.

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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