AutoCodes – BMW – P17F4 BMW

P17F4 BMW Code - Ratio Monitoring Clutch 'B' and 'E'

Quick Answer

The Transmission Control Module (TCM) monitors the Clutch Ratio. Common causes include Transmission Mechanical Problems, Faulty Transmission Assembly. 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: P17F4 BMW indicates Ratio Monitoring Clutch 'B' and 'E'.
Common causes: Common causes include Transmission Mechanical Problems, Faulty Transmission Assembly.
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 6,076

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 Jan 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P17F4 BMW Description

The Transmission Control Module (TCM) monitors the Clutch Ratio. The TCM sets the OBDII code when the Clutch Ratio is not to factory specifications.

OBDII Code P17F4 BMW - Ratio Monitoring Clutch 'B' and 'E' - AutoCodes.com — P17F4 BMW Code - Ratio Monitoring Clutch 'B' and 'E'

What does this mean?

What are the Possible Causes of the DTC P17F4 BMW?

Transmission Mechanical Problems
Faulty Transmission Assembly

How to Fix the DTC P17F4 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 P17F4 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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Need Help with the Code?

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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 P17F4 BMW Code

1. What are the common symptoms of OBDII code P17F4 BMW (Ratio Monitoring Clutch 'B' and 'E')?

- Common symptoms include rough shifting, transmission slipping, decreased fuel efficiency, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P17F4 BMW?

- Possible causes include a faulty clutch actuator, low transmission fluid levels, clutch wear, electrical issues, or software glitches in the transmission control module.

3. How can I diagnose OBDII code P17F4 BMW?

- Diagnosing this code typically involves using a professional OBDII scanner to read the code, checking transmission fluid levels, inspecting the clutch actuator for proper function, and conducting a visual inspection of the transmission system.

4. Is it safe to continue driving with OBDII code P17F4 BMW active?

- It is not recommended to continue driving with this code active, as it can lead to further damage to the transmission and potentially leave you stranded on the road.

5. How can I repair OBDII code P17F4 BMW?

- Repair options may include replacing the clutch actuator, topping up or changing the transmission fluid, addressing any electrical issues, and resetting or reprogramming the transmission control module.

6. Can I reset OBDII code P17F4 BMW myself?

- While you can attempt to clear the code with an OBDII scanner, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it cost to fix OBDII code P17F4 BMW?

- The cost of fixing this code can vary depending on the specific issue causing it, but it is advisable to consult with a professional mechanic for an accurate diagnosis and cost estimate.

8. Will OBDII code P17F4 BMW cause permanent damage to my vehicle?

- Ignoring this code can potentially cause permanent damage to the transmission system, leading to costly repairs or even transmission failure if left unresolved.

9. Can a software update resolve OBDII code P17F4 BMW?

- In some cases, a software update or reprogramming of the transmission control module may help resolve the code, especially if the issue is related to software glitches.

10. How often does OBDII code P17F4 BMW occur in BMW vehicles?

- While not extremely common, OBDII code P17F4 BMW can occur in BMW vehicles, particularly in models with dual-clutch transmissions. Regular maintenance and prompt diagnosis are key to preventing this issue.