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Engine-Codes – BMW – P0733 BMW

P0733 BMW Code - Gear 3 Incorrect ratio

Quick Answer

The P0733 code for BMW vehicles indicates that there is an incorrect gear ratio detected for the third gear. Common causes include Low transmission fluid levels, Malfunctioning transmission solenoids, Faulty transmission control module. 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
P0733 BMW indicates Gear 3 Incorrect ratio.
Common causes
Common causes include Low transmission fluid levels, Malfunctioning transmission solenoids, Faulty transmission control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0733 BMW Description

The P0733 code for BMW vehicles indicates that there is an incorrect gear ratio detected for the third gear. This means that the transmission is not shifting into third gear as it should, which can lead to various problems with the vehicle's performance. When the transmission fails to shift into the correct gear ratio, it can cause issues such as poor acceleration, rough shifting, decreased fuel efficiency, and even potential damage to the transmission components over time.

OBDII Code P0733 BMW - Gear 3 Incorrect ratio
P0733 BMW Code - Gear 3 Incorrect ratio

Common Causes of P0733 BMW

  1. Low transmission fluid levels
  2. Malfunctioning transmission solenoids
  3. Faulty transmission control module
  4. Internal mechanical issues within the transmission
  5. Electrical wiring issues affecting transmission operation

Symptoms of P0733 BMW

  1. Delayed or harsh shifting between gears
  2. Slipping gears while driving
  3. Loss of power or acceleration
  4. Illumination of the Check Engine Light
  5. Unusual noises coming from the transmission

How to Fix P0733 BMW

  1. Diagnose the issue by using a scan tool to retrieve the specific error codes and perform a thorough inspection of the transmission system.
  2. Check the transmission fluid level and condition, topping off or replacing it as needed.
  3. Inspect and test the transmission solenoids for proper function, replacing any faulty components.
  4. Check the transmission control module for any faults or errors, recalibrating or replacing as necessary.
  5. If internal mechanical issues are detected, consider a transmission rebuild or replacement to address the problem effectively.

Cost to Fix P0733 BMW

The typical repair costs for addressing the P0733 code in a BMW can range from $200 to $1500, depending on the specific cause of the issue and the extent of repairs needed. This estimate includes the cost of parts such as solenoids, transmission fluid, and potentially a new transmission control module, as well as labor charges for diagnosis and repair. It's important to note that labor rates at auto repair shops can vary, so it's advisable to obtain a detailed quote from a reputable mechanic based on your vehicle's make and model, location, and the severity of the issue.

What does this mean?

Tech Notes for P0733 BMW

Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

When is the Code Detected?

P0733 is detected when A/T cannot be shifted to the 3rd gear position even if electrical circuit is good.

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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 P0733 BMW Code

1. What are common symptoms of OBDII code P0733 in a BMW indicating Gear 3 Incorrect ratio?

- Common symptoms include harsh shifting, delayed engagement, slipping gears, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P0733 in a BMW?

- Potential causes include low transmission fluid level, faulty transmission solenoids, worn clutch components, or a malfunctioning transmission control module.

3. How can I diagnose OBDII code P0733 in a BMW at home?

- You can start by checking the transmission fluid level and condition, conducting a visual inspection of the transmission components, and scanning for additional trouble codes with an OBDII scanner.

4. What are some repair tips for resolving OBDII code P0733 in a BMW?

- Repair tips may include performing a transmission fluid flush and filter replacement, checking and replacing faulty solenoids or sensors, inspecting and repairing damaged wiring, or recalibrating the transmission control module.

5. Can driving with OBDII code P0733 in a BMW cause further damage to the vehicle?

- Continuing to drive with this code may lead to increased transmission wear, reduced fuel efficiency, and potential long-term damage to the transmission components.

6. How much does it typically cost to repair OBDII code P0733 in a BMW at a professional auto repair shop?

- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Is it safe to continue driving my BMW with OBDII code P0733 before getting it repaired?

- It is not recommended to drive the vehicle extensively with this code present, as it can lead to further transmission damage and potentially unsafe driving conditions.

8. Can OBDII code P0733 in a BMW be triggered by a simple issue like a loose electrical connection?

- Yes, a loose electrical connection or faulty sensor can sometimes trigger this code, so it's important to conduct a thorough inspection before assuming a major transmission problem.

9. How long does it typically take to repair OBDII code P0733 in a BMW?

- The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take a few hours to a full day for the repair to be completed.

10. Is it possible to reset OBDII code P0733 in a BMW using an OBDII scanner?

- While you can clear the code temporarily with an OBDII scanner, it is crucial to diagnose and address the underlying issue causing the code to prevent it from recurring.

Discuss the causes and fixes for P0733 BMW OBDII Code

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  • This is very helpful information. For bmw 325i .i hilly recommend it....

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