AutoCodes – BMW – P2729 BMW

P2729 BMW Code - Pressure Control Solenoid 'E' Control Circuit Low

Quick Answer

This fault code is stored in the electronic control module when a malfunction is detected with the pressure control solenoid circuit. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid valve 'E'. 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: P2729 BMW indicates Pressure Control Solenoid 'E' Control Circuit Low.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid valve 'E'.
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 3,318

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 May 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2729 BMW Description

This fault code is stored in the electronic control module when a malfunction is detected with the pressure control solenoid circuit. The mechanical condition of the transmission should be inspected prior to any electrical fault finding. An actuator test can be carried out on the pressure control solenoid and a current clamp can be used to monitor the condition of the winding. Electrical tests such as winding resistance, checking for short to power or short to ground can be carried out also. Normally resistance of a solenoid winding is 10 to 25 Ohms, however manufacturer specifications should be checked.

OBDII Code P2729 BMW - Pressure Control Solenoid 'E' Control Circuit Low - AutoCodes.com — P2729 BMW Code - Pressure Control Solenoid 'E' Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2729 BMW?

Low transmission fluid level
Dirty transmission fluid
Faulty line pressure solenoid valve 'E'
Line pressure solenoid valve 'E' harness is open or shorted
Line pressure solenoid valve 'E' circuit poor electrical connection

How to Fix the DTC P2729 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 P2729 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 P2729 BMW code?

Need more information on how to fix the P2729 BMW code? Get Access to Factory Service Manuals

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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 P2729 BMW Code

1. What are the common symptoms of OBDII code P2729 in a BMW?

The common symptoms include rough shifting, transmission slipping, poor acceleration, and the vehicle going into limp mode.

2. What are the possible causes of the Pressure Control Solenoid 'E' Control Circuit Low error code in a BMW?

Possible causes include a faulty pressure control solenoid, damaged wiring or connectors, low transmission fluid level, or a malfunctioning transmission control module.

3. How can I diagnose the Pressure Control Solenoid 'E' Control Circuit Low error code in my BMW?

Diagnosis typically involves using an OBDII scanner to retrieve the code, conducting a visual inspection of the wiring and connectors, checking the transmission fluid level and condition, and performing a thorough transmission system test.

4. Can I continue driving my BMW with the P2729 error code present?

It is not recommended to continue driving your BMW with the P2729 code as it can lead to further damage to the transmission. It is advisable to address the issue promptly.

5. How can I repair the Pressure Control Solenoid 'E' Control Circuit Low error code in my BMW?

Repair options may include replacing the pressure control solenoid, repairing or replacing damaged wiring or connectors, ensuring the transmission fluid level is correct, and resetting the error code.

6. Is it possible to reset the P2729 code in a BMW without fixing the underlying issue?

While you can clear the error code using an OBDII scanner, it is important to address the root cause of the problem to prevent it from reoccurring and potentially causing more serious issues.

7. How much does it typically cost to repair the Pressure Control Solenoid 'E' Control Circuit Low error code in a BMW?

The cost of repair can vary depending on the extent of the issue, parts needed, and labor charges. It is advisable to consult with a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast repair the P2729 error code in a BMW?

While some aspects of the repair may be DIY-friendly, dealing with transmission issues can be complex. It is recommended to have the repair done by a qualified mechanic to ensure proper diagnosis and resolution.

9. Are there any preventive measures to avoid the OBDII code P2729 in a BMW?

Regularly servicing your BMW, checking the transmission fluid level, and addressing any transmission-related symptoms promptly can help prevent issues that may trigger the P2729 error code.

10. How long does it typically take to repair the Pressure Control Solenoid 'E' Control Circuit Low error in a BMW?

The repair time can vary depending on the exact cause of the issue and the extent of the repair needed. It is best to consult with a mechanic for a more accurate timeframe.