How to Fix Range Rover Suspension Fault: Max Speed 30 MPH

How to Resolve the Range Rover Suspension Fault: Max Speed 30 MPH

If you are experiencing issues with the suspension of your Range Rover, you need not worry. Identifying the root cause of the problem can lead to a straightforward solution. So, how can you effectively address the Range Rover suspension fault max speed 30 mph message?

You can rectify the Range Rover suspension fault max speed 30 mph error by calibrating the suspension system. Additionally, if you suspect a malfunctioning EAS compressor, replacing it may be necessary. Furthermore, issues with a faulty height sensor can also trigger this warning; replacing the height sensor should resolve the problem.

Still uncertain about how to restore your Range Rover’s suspension to optimal condition? Continue reading for more insightful details.

Quick Solutions for the Range Rover Suspension Fault

Follow this concise guide to troubleshoot the Range Rover suspension fault max speed 30 mph:

Still seeking guidance on fixing your suspension system? Read on for a more comprehensive analysis:

A Detailed Guide to Fixing the Range Rover Suspension Fault

Several factors can lead to the Range Rover suspension fault max speed 30 mph error:

1. Calibration Problems

Calibration of the suspension system is essential after replacing any powertrain component.

Solution: Perform a Suspension Calibration

To resolve the Range Rover suspension fault error, conducting a suspension calibration is crucial. For guidance, refer to the instructional video linked here. If the suspension system malfunctions, your vehicle may become immobile, necessitating an SOS signal for assistance. However, it is crucial to note that your Range Rover may have limited SOS functionality. Thus, addressing the suspension issue promptly is advisable.

2. Issues with the EAS Compressor

A malfunctioning EAS compressor might also be responsible for the suspension fault error. Below are some symptoms to look out for:

Symptoms:

• Receiving a C1A13-64 error code on your OBD2 diagnostic tool.
• Presence of white powder blocking the silencer of the air suspension unit.
• The compressor runs continuously.
• The vehicle exhibits sagging when parked.
• The compressor does not activate at all.

Solution: Replace the EAS Compressor

Tools and Materials Required:

• Socket wrench
• Screwdriver
• Pliers
• Four car stands
• Car jack

Steps to Follow:

• Park the vehicle on a flat surface.
• Ensure that the steering wheel is straight.
• Use the correct lifting points to raise the vehicle.
• Remove and discard the compressor relay; do not install a new relay until the compressor is replaced.
• Remove screws securing the lower acoustic box cover, then detach the tabs connecting the lower and upper sections of the acoustic box. Discard the old acoustic box.
• Carefully disconnect the main power and sensor connectors without pulling on wires to avoid damaging the compressor.
• Identify the compressor model, which can be found on a sticker attached to the compressor or in the vehicle’s owner’s manual.

Instructions for Removing Different Compressors:

• Hitachi Compressor:
  • Press the blue collar on the airline and detach it.
  • Remove the airline at the valve block.
  • Replace the old pipework using the air fitting and J-shaped pipe provided in the kit.
  • Depress the metal collars on the inlet and exhaust pipes to detach them.
  • Remove the compressor and mounting bracket by loosening the three mounting bolts.
  • Discard the complete unit, including the bracket and mounting hardware.
• AMK Gen 1 Type Compressor:
  • Disconnect the airlines from both the compressor and the valve block.
  • Remove the old airline.
  • Identify the inlet and exhaust pipes.
  • Detach the inlet pipe by depressing the white tabs and pulling it up.
  • To remove the exhaust pipe, press the collar ring down and pull it from the housing.
  • Loosen the three mounting bolts securing the compressor and bracket.
  • Remove and discard the complete unit.
• AMK Gen 2 Type Compressor:
  • Locate and disconnect the airline connectors on the compressor and valve block.
  • Remove the old airlines.
  • Identify the inlet and exhaust pipes.
  • Detach the inlet pipe by loosening the air fitting.
  • Remove the exhaust pipe by pressing the collar ring down and pulling it off.
  • Loosen the three mounting bolts securing the compressor.
  • Remove and discard the complete unit.

Pre-Installation Process:

Before re-installing the compressor, prepare the original inlet and exhaust pipes by trimming them to a universal length of 50mm. This ensures a secure fit for the push-fit connectors.

• Attach the new air fitting to the airline, ensuring 2-3mm of airline extends from the bottom of the collet to allow for a secure grip.

Once the compressor is fully re-fitted:

• Lower the vehicle to its normal ride height while keeping it supported.
• Start the engine and allow it to idle for 2 minutes to build up air pressure.
• Select the raising function of the vehicle’s air suspension. Only lower the vehicle completely once it raises under its own power.
• Tighten all nuts and bolts to the manufacturer’s specifications and check for air leaks.
• Conduct a road test and recheck for air leaks and error codes. A recalibration or ride height adjustment may be necessary, and a wheel alignment is recommended.

Your EAS compressor has now been successfully replaced. Remember, an EAS compressor is akin to a differential; both can fail unexpectedly. Similar to a noisy compressor, a whining differential indicates potential trouble.

3. A Faulty Height Sensor

A malfunctioning height sensor can also trigger the Range Rover suspension fault error.

Symptoms:

• One side of the vehicle sits lower than the other.
• Visual inspection reveals damage to the sensor.

Solution:

To replace the height sensor, follow the procedure outlined in this instructional video. After replacing the height sensor, the Range Rover suspension fault error should be resolved. It is advisable to replace a faulty height sensor promptly to prevent further damage to the suspension system. The cost of repairing the Range Rover air suspension can range from $2,000 to $3,000.

Frequently Asked Questions (FAQs)

Is Air Suspension Superior to Standard Suspension?

Yes, air suspension generally offers a better ride quality compared to standard suspension systems. Air suspensions produce less noise and vibration while exhibiting decreased wear and tear from rough road conditions. However, they can be more costly and complicated to repair than traditional suspension systems.

What is the Lifespan of Air Suspensions?

Air suspensions can last between 6 to 10 years, or approximately 90,000 km to 160,000 km. The actual lifespan, however, may vary based on driving habits. Engaging in off-road activities may shorten the lifespan of air suspensions, and they are susceptible to failure due to moisture exposure.

Do Air Suspensions Require Maintenance?

Yes, air suspensions do require maintenance, including draining condensation from the air tank and adding antifreeze to it. Regularly tightening the lock collars is also recommended. Generally, air suspension systems require minimal maintenance.

Conclusion

Now you are well-informed about the Range Rover suspension fault max speed 30 mph issue. While Range Rovers are equipped with excellent suspension systems, they can still encounter problems for various reasons. I hope this article has provided valuable insights to help you restore your Range Rover’s suspension system. Thank you for reading, and best of luck with your Range Rover!