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Engine Fault Code P075C

Shift Solenoid G Stuck On

Care Engine Code Reader
The Engine Fault Code P075C refers to a problem with the shift solenoid G in the transmission. This solenoid controls the flow of transmission fluid to help with shifting gears. When the code indicates that the solenoid is `stuck on,` it means that the solenoid is not functioning properly. This can lead to issues like rough shifting, slipping gears, or even the inability to shift at all.

Different manufacturers might interpret this code slightly differently, but the general meaning remains the same across most European brands, including Porsche, Mini, Mercedes, Audi, Jaguar, and Land Rover. Here are some possible variations:

1. P075C (General): Stuck on shift solenoid G.
2. P075C (Porsche): Similar meaning; may refer to specific transmission types.
3. P075C (Mini): Usually indicates a problem with the transmission control module.
4. P075C (Mercedes): May indicate a need for a software update or transmission fluid change.
5. P075C (Audi): Could also point to wiring issues or a faulty transmission control unit.
6. P075C (Jaguar): Often related to the electronic control of the transmission.
7. P075C (Land Rover): Might indicate a more complex issue within the transmission system.

If you see this code, its best to have a professional diagnose the problem. They can check the solenoid, wiring, and other related components to determine the exact cause.
The Engine Fault Code P075C indicates that the Shift Solenoid G is stuck in the `on` position. This code can occur in various vehicles, including those from Porsche, Mini, Mercedes, Audi, Jaguar, and Land Rover. Here are some common causes and manufacturer-specific considerations:

Common Causes:
1. Faulty Shift Solenoid: The solenoid itself may be malfunctioning, causing it to stay engaged.
2. Electrical Issues: Problems with wiring or connectors leading to the solenoid can cause it to behave incorrectly.
3. Transmission Fluid Issues: Low or dirty transmission fluid can affect solenoid performance.
4. Control Module Problems: The transmission control module (TCM) might be sending incorrect signals.
5. Mechanical Issues: Internal transmission problems, such as sticking valves or worn components, may cause the solenoid to stick.

Manufacturer-Specific Considerations:
Porsche: Check for software updates for the TCM, as Porsche often releases updates that can fix electronic issues.
Mini: Look for any known issues related to the transmission type used in your specific model, as some models may have recalls or service bulletins.
Mercedes: Mercedes vehicles may have specific wiring harness issues that lead to solenoid problems; inspect the harness for damage.
Audi: Audi`s dual-clutch transmissions can be sensitive to fluid levels; ensure the fluid is at the correct level and in good condition.
Jaguar: Some Jaguar models may have unique solenoid designs; consult the service manual for specific testing procedures.
Land Rover: Land Rover vehicles may require specialized diagnostic tools to read and clear codes effectively.

Troubleshooting Steps:
1. Check Fluid Levels: Ensure the transmission fluid is at the correct level and clean.
2. Inspect Wiring: Look for damaged wires or loose connections related to the solenoid.
3. Test the Solenoid: Use a multimeter to check if the solenoid is functioning correctly.
4. Scan for Additional Codes: Other codes may help pinpoint the issue further.
5. Consult Manufacturer Resources: Use service manuals or online forums for model-specific advice.

If you`re unsure about any steps, it might be best to consult a professional mechanic, especially for complex issues.
Fixing the Engine Fault Code P075C, which indicates that Shift Solenoid G is stuck on, can vary depending on the make and model of the vehicle. Heres a general approach along with some manufacturer-specific tips for European cars like Porsche, Mini, Mercedes, Audi, Jaguar, and Land Rover.

General Steps to Fix P075C:

1. Check the Transmission Fluid:
– Low or dirty transmission fluid can cause solenoid issues. Check the fluid level and condition. If its low, top it off with the correct type of fluid. If its dirty, consider a fluid change.

2. Inspect Wiring and Connectors:
– Look for damaged or corroded wiring and connectors related to the shift solenoid. Repair or replace any damaged parts.

3. Test the Shift Solenoid:
– Use a multimeter to check the resistance of the solenoid. If its out of spec, you may need to replace it.

4. Check for Other Codes:
– Use an OBD-II scanner to see if there are any other related codes. Fixing those may resolve the P075C code.

5. Clear the Code:
– After repairs, clear the code with a scanner and take the vehicle for a test drive to see if the code returns.

Manufacturer-Specific Tips:

#1. Porsche:
– Model Specific: For models like the Cayenne or Panamera, check for software updates or recalls that may address transmission issues. Sometimes, the issue might be software-related.

#2. Mini:
– Common Issue: In some Mini models, the transmission control module (TCM) can cause this code. Consider reprogramming or replacing the TCM if other steps dont work.

#3. Mercedes:
– Adaptation: After replacing the solenoid, you may need to perform a transmission adaptation procedure using a Mercedes diagnostic tool to reset the system.

#4. Audi:
– Common Solenoid Failure: Audi vehicles sometimes have issues with solenoids failing due to overheating. Make sure the transmission cooler is functioning properly.

#5. Jaguar:
– Transmission Type: Depending on the model, some Jaguars have a specific service bulletin for transmission issues. Check for any recalls or service advisories.

#6. Land Rover:
– Check for Fluid Leaks: Land Rover vehicles can develop fluid leaks that affect the solenoid. Inspect for leaks around the transmission and repair as necessary.


Fixing the P075C code involves checking fluid levels, inspecting wiring, testing the solenoid, and addressing any related issues. Always refer to the specific repair manual for your vehicle for detailed instructions. If youre unsure or uncomfortable with any steps, its best to consult a professional mechanic.
Driving with a P075C code, which indicates that the Shift Solenoid G is stuck on, is generally not safe. This code usually points to an issue in the transmission system, specifically with the solenoid that controls the shifting of gears. Heres a breakdown of the implications for different manufacturers:

General Risks:
1. Transmission Damage: If the solenoid is stuck, it may cause the transmission to operate improperly, leading to potential damage.
2. Poor Performance: You might experience rough shifting or slipping, which can affect your control of the vehicle.
3. Overheating: Continuous operation of the transmission under these conditions can lead to overheating.

Manufacturer-Specific Considerations:

#Porsche:
– Risk Level: High. Porsche transmissions are sensitive, and issues can escalate quickly.
– Avoid driving and have it checked immediately.

#Mini:
– Risk Level: Moderate. Mini transmissions can be affected, but they may allow limited driving.
– Drive cautiously and get it diagnosed soon.

#Mercedes:
– Risk Level: High. Mercedes vehicles often have complex transmission systems.
– Do not drive; have it inspected right away.

#Audi:
– Risk Level: High. Audi transmissions can suffer from serious issues if not addressed.
– Avoid driving and seek professional help.

#Jaguar:
– Risk Level: High. Jaguar transmissions are intricate and can lead to significant problems.
– Immediate inspection is necessary.

#Land Rover:
– Risk Level: Moderate to High. Depending on the model, some Land Rovers may allow for limited driving.
– Drive carefully and get it checked as soon as possible.


Our view, it`s best to avoid driving your vehicle if you have a P075C code. Each manufacturer has its own level of risk, but most will require prompt attention to prevent further damage. If you encounter this code, consider having a professional mechanic look at it as soon as possible.

OBD Codes Explained

Engine Codes

P is for PowerTrain - Engine and Transmission.

P0 Indicates Generic Powertrain Codes

P0 Codes indicate problems with the powertrain and are common for all vehicles using the OBD-II Standard.

P1 Enhanced Manufacturer Specific Codes

P1 Codes are specific to manufacturers.

Sub-System

The 3rd Digit indicates the Sub-System

1 – Emission Management

2 – Injector Circuit

3 – Ignition

4 – Emission Control

5 – Vehicle Speed and Idle

6 – Computer and Output

7 – Transmission

8 – Transmission

9 – Reserved

0 – Reserved

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