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The cost of replacing a Range Rover’s compressor can be significant, but it’s often worth it. The compressor is key for maintaining the vehicle’s luxury ride quality and off-road capabilities. Consider repair costs, vehicle age, and condition before deciding.
In this article, I’ll provide you with a step-by-step guide to replacing your Range Rover compressor efficiently and effectively.
What models are affected?
- Land Rover Defender
- Land Rover Vogue
- Range Rover Discovery
- Range Rover Evoque
- Range Rover Sport
- Range Rover Velar
- Range Rover Vogue
Signs and symptoms
Before we dive into the nitty-gritty of replacing your compressor, let’s first talk about what signs and symptoms you should look out for.
These are some of the most common indicators of a failing compressor:
- Suspension fault message on the dashboard
- Vehicle leaning to one side
- Abnormal noise when the compressor is running
- Suspension not raising or lowering as it should
- Air Suspension Inactive message on the dashboard
List of possible OBD codes
When your Range Rover’s compressor fails, several OBD codes may be triggered.
Here is a list of some of the most common ones to look out for:
- C1A20 – Pressure Increases Too Slowly While Driving
- C1A13 – Pressure Increases Too Slowly While Parked
- C1A12 – Pressure Increases Too Quickly
- C1A11 – Pressure Decreases Too Slowly
- C1A10 – Pressure Decreases Too Quickly
The compressor is often the culprit behind the above signs and symptoms, but sometimes, there could be other underlying issues.
Here are some common causes of a failing Range Rover compressor:
- Moisture in the air system
- Leaks in the air springs or air lines
- Electrical issues
- Faulty air dryer or valve block
Can It be fixed without a mechanic?
The short answer is no. Replacing a Range Rover compressor requires special tools and expertise, so it’s not a DIY job. You’ll also need to have the right diagnostic tools to identify the root cause of the problem.
I highly recommend taking your Range Rover to the dealership or an independent shop that specializes in Range Rovers.
Parts you’ll need to fix it
Here are the parts you’ll need to replace your Range Rover compressor:
- Direct replacement of original equipment compressor
- New relay
Tools you’ll need to fix it
Make sure you have the following tools on hand before you start the replacement process:
- Autologic system or equivalent for reading OBD codes
- Fitting brackets for compressor
- Basic hand tools (screwdrivers, wrenches, etc.)
How to fix it
Now, onto the main event – how to replace your Range Rover compressor.
Here’s a step-by-step guide:
- Locate the compressor: It’s usually located in the rear, under the vehicle near the suspension.
- Remove the compressor: Use your fitting brackets to unmount the compressor from its position.
- Disconnect the electrical and air lines: Carefully unplug the electrical connectors and air lines from the compressor.
- Install the new compressor: Mount the new compressor onto the vehicle using your fitting brackets.
- Reconnect electrical and air lines: Reattach the electrical connectors and air lines to the new compressor.
- Clear OBD codes: Use your diagnostic tool to clear OBD codes and ensure the new compressor is functioning correctly.
- Test the suspension: Start your car and make sure your suspension is raising and lowering as it should.
Potential alternative causes
While the compressor is the most common cause of air suspension failure in Range Rovers, there could be other issues at play.
Be sure to have your technician check for these potential alternative causes:
- Air leaks in air lines or air springs
- Faulty air dryer
- Valve block failure
- Faulty height sensors
How long should a Range Rover compressor last?
There’s no set lifespan for a Range Rover compressor, but they typically last anywhere from 80,000 to 120,000 miles. Regular maintenance, including moisture evacuation and filter replacement, can help prolong its life.
Can I use an aftermarket compressor replacement?
While aftermarket compressors may be cheaper than OEM options, they may not function as effectively as the original. I recommend always using direct replacement original equipment compressors to ensure full functionality and ease.
How much should I expect to pay for a Range Rover compressor replacement?
The cost of a Range Rover compressor replacement varies depending on the year and model of your vehicle. I recommend getting a quote from your local dealership or independent shop.
Replacing a failed Range Rover compressor is not a DIY job and requires expertise and specialized tools. Signs and symptoms of a failing compressor include suspension fault messages, abnormal noises, and suspension issues.
Common causes include moisture in the air system and leaks in the air springs or air lines. Always use direct replacement original equipment compressors for the best results.
Last updated and verified on 4th September 2023