AutoCodes – BMW – P1057 BMW

P1057 BMW Code - Valvetronic Supply Voltage Control Motor Electrical

Quick Answer

The Valvetronic (VVT) System is a Variable Valve Lift (VVL) system that, in combination with variable valve timing, allows infinite adjustment of the intake valve timing and duration. Common causes include Faulty Valvetronic Control Motor, Valvetronic Control Motor harness is open or shorted, Valvetronic Control Motor 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: P1057 BMW indicates Valvetronic Supply Voltage Control Motor Electrical.
Common causes: Common causes include Faulty Valvetronic Control Motor, Valvetronic Control Motor harness is open or shorted, Valvetronic Control Motor 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.

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Code Popularity 25,025

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1057 BMW Description

The Valvetronic (VVT) System is a Variable Valve Lift (VVL) system that, in combination with variable valve timing, allows infinite adjustment of the intake valve timing and duration. The system helps improve fuel economy and emissions and negates the need for a throttle body in regular use. The electronic control of the Valvetronic is dependent on, Voltage Limits, Adaptations, current and power stage temperature. The monitoring function performs an electrical diagnosis Of the DC motor lines. The goal of this function is to detect a short circuit at the VVL output stage. The function uses temperatures from the sensor outputs of the power stage. If the temperature of one power stage is greater than a threshold the function checks the output stage. If a short circuit is detected an error is set.

OBDII Code P1057 BMW - Valvetronic Supply Voltage Control Motor Electrical - AutoCodes.com — P1057 BMW Code - Valvetronic Supply Voltage Control Motor Electrical

What does this mean?

What are the Possible Causes of the DTC P1057 BMW?

Faulty Valvetronic Control Motor
Valvetronic Control Motor harness is open or shorted
Valvetronic Control Motor circuit poor electrical connection

How to Fix the DTC P1057 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 P1057 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.

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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 P1057 BMW Code

1. What are the common symptoms of OBDII code P1057 in a BMW related to the Valvetronic Supply Voltage Control Motor Electrical issue?

- Common symptoms include engine misfires, rough idling, loss of power, and the Check Engine light illuminating on the dashboard.

2. What are some possible causes of the OBDII code P1057 in a BMW?

- Possible causes include a faulty Valvetronic motor, damaged wiring or connectors, a failed Valvetronic control module, or issues with the engine control unit (ECU).

3. How can I diagnose the Valvetronic Supply Voltage Control Motor Electrical problem causing the P1057 code in my BMW?

- To diagnose the issue, you can perform a visual inspection of the wiring and connectors, test the Valvetronic motor's functionality, check for voltage irregularities, and use an OBDII scanner to read the fault codes.

4. What are the repair options for fixing the Valvetronic Supply Voltage Control Motor Electrical issue in a BMW with the P1057 code?

- Repair options may include replacing the Valvetronic motor, repairing or replacing damaged wiring and connectors, replacing the Valvetronic control module, or reprogramming the engine control unit (ECU).

5. Can I drive my BMW with the OBDII code P1057 related to the Valvetronic Supply Voltage Control Motor Electrical problem?

- It is not recommended to drive your BMW for an extended period with this issue, as it can lead to further damage to the engine and components. It's best to address the problem promptly.

6. Are there any preventive maintenance tips to avoid encountering the Valvetronic Supply Voltage Control Motor Electrical issue in a BMW?

- Regularly inspecting and maintaining the Valvetronic system components, keeping up with routine maintenance schedules, and addressing any engine performance issues promptly can help prevent this problem.

7. Is it possible to reset the OBDII code P1057 in a BMW related to the Valvetronic Supply Voltage Control Motor Electrical issue without fixing the underlying problem?

- While you can clear the fault code temporarily, it will likely reappear until the root cause of the issue is addressed and fixed.

8. How long does it typically take to repair the Valvetronic Supply Voltage Control Motor Electrical problem causing the OBDII code P1057 in a BMW?

- The repair time can vary depending on the exact cause of the issue and the extent of the repairs needed. It can range from a few hours to a full day in some cases.

9. Can a DIY enthusiast fix the Valvetronic Supply Voltage Control Motor Electrical issue triggering the P1057 code in a BMW?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and fix simpler issues related to the Valvetronic system. However, complex repairs may require professional assistance.

10. How much can I expect to pay for repairing the Valvetronic Supply Voltage Control Motor Electrical issue in a BMW with the P1057 fault code?

- The cost of repairs can vary based on the specific repairs needed, parts required, labor rates, and whether you choose a dealership or an independent mechanic. Costs can range from a few hundred to over a thousand dollars.