AutoCodes – BMW – P1520 BMW

P1520 BMW Code - Camshaft Position Actuator 'B' Bank 1

Quick Answer

P1520 BMW indicates Camshaft Position Actuator 'B' Bank 1. Common causes include Faulty Camshaft Position Actuator 'B', Camshaft Position Actuator 'B' harness is open or shorted, Camshaft Position Actuator 'B' circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1520 BMW indicates Camshaft Position Actuator 'B' Bank 1.
Common causes
Common causes include Faulty Camshaft Position Actuator 'B', Camshaft Position Actuator 'B' harness is open or shorted, Camshaft Position Actuator 'B' circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 17,986
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 27, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1520 BMW Description

OBDII Code P1520 BMW - Camshaft Position Actuator 'B' Bank 1 - AutoCodes.com
P1520 BMW Code - Camshaft Position Actuator 'B' Bank 1

What are the Possible Causes of the DTC P1520 BMW?

  • Faulty Camshaft Position Actuator 'B'
  • Camshaft Position Actuator 'B' harness is open or shorted
  • Camshaft Position Actuator 'B' circuit poor electrical connection

How to Fix the DTC P1520 BMW?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1520 BMW code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1520 BMW code?

Need more information on how to fix the P1520 BMW code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1520 BMW code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1520 BMW Code

What does the OBDII code P1520 mean for a BMW?

P1520 indicates a malfunction in the camshaft position actuator 'B' on Bank 1, which affects timing adjustments for optimal engine performance.

What are the symptoms of a P1520 code on a BMW?

Common symptoms include rough idling, reduced engine performance, poor fuel economy, and occasional engine misfires.

What causes the P1520 code on a BMW?

Possible causes include a faulty camshaft position actuator, wiring issues, low engine oil levels, or dirty oil leading to actuator clogging.

Can low oil levels trigger the P1520 code?

Yes, insufficient oil or dirty oil can prevent proper functioning of the camshaft position actuator, leading to the P1520 code.

How do I diagnose the P1520 code on a BMW?

Start by checking the camshaft position actuator and its wiring. Verify oil levels and quality. Use an OBDII scanner to confirm the code and monitor live data for actuator performance.

How do I fix the P1520 code on a BMW?

Repairs may include replacing the camshaft position actuator, cleaning or replacing oil, fixing wiring issues, or updating the engine control module (ECM software).

Can driving with a P1520 code damage the engine?

Prolonged driving with this code can cause further engine timing issues, reduced performance, and potential long-term engine damage.

Is the camshaft position actuator expensive to replace?

The cost varies depending on the model, but typically ranges from $200 to $600 for parts and labor.

Can a software update resolve the P1520 code?

In some cases, a BMW ECM software update can fix timing-related issues associated with the P1520 code, but this depends on the specific problem.

Should I reset the P1520 code after repairs?

Yes, once repairs are completed, clear the code using an OBDII scanner and test drive the vehicle to ensure the issue is resolved.

Discuss the causes and fixes for P1520 BMW OBDII Code

Code P1520 BMW comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play