The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2018 Range Rover Velar Air Suspension Malfunction - Sagging & Warning Light

0

Jason D. · rep 0 · May 22, 6:30 AM · 1 replies · solved · Question

Vehicle: 2018 Range Rover Velar P300 HSE

Hey everyone,

I'm having some serious trouble with the air suspension on my 2018 Range Rover Velar P300 HSE. Lately, I've noticed the rear end, sometimes even the front, sagging significantly overnight or after being parked for a few hours. It looks really low, almost like it's bottomed out.

When I start the car, it usually tries to level itself, but it takes a while, and sometimes I get an 'Air Suspension Fault' message on the dashboard. The ride quality also feels much harsher than usual, especially over bumps.

Has anyone experienced this with their Velar or other Land Rover models? What could be causing this, and is it something I can check myself before taking it to the dealership? Any advice would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 6:30 AM

0

ClearTheCode admin answer:

It sounds like you're dealing with a common issue for Land Rover vehicles equipped with air suspension. The 'Air Suspension Fault' message combined with sagging is a clear indicator of a problem within the system.

Here are the most common causes and what you should do:

  1. Air Spring Leaks: The most frequent culprit. Over time, the rubber air springs (also known as air bags or air struts) can develop cracks or small holes, leading to air leaks. This causes the suspension to deflate, especially when parked. You might hear a faint hissing sound if the leak is significant.
  2. Air Line Leaks: The plastic air lines connecting the compressor, valve block, and air springs can also develop leaks, often at the fittings or due to chafing.
  3. Air Suspension Compressor Failure: The compressor is responsible for pumping air into the system. If it's failing, it might struggle to inflate the springs, work excessively, or stop working altogether. This can lead to slow inflation or the system not reaching the correct height. Common OBD codes associated with compressor issues include C1A20 (Pressure Sensor Fault) or C1A00 (Compressor Malfunction).
  4. Valve Block Malfunction: The valve block controls the air distribution to each air spring. If a valve is stuck open or closed, it can cause one or more corners of the vehicle to sag.
  5. Height Sensor Issues: The height sensors tell the control module the current ride height. If a sensor is faulty, it might send incorrect readings, leading the system to try and adjust to the wrong height or trigger a fault.

When to see a shop: Given the complexity and safety implications of suspension systems, it's highly recommended to have your 2018 Range Rover Velar inspected by a qualified Land Rover specialist or dealership as soon as possible. Driving with a compromised air suspension can affect handling, braking, and tire wear, potentially leading to unsafe driving conditions.

A professional will be able to:

  • Perform a diagnostic scan to retrieve specific fault codes (e.g., C1A20-1C, C1A00-13, C1A36-01 for height sensor issues).
  • Visually inspect the air springs, lines, and connections for leaks.
  • Test the compressor's functionality and output pressure.
  • Check the valve block and height sensor readings.

Attempting DIY repairs without proper tools and knowledge can be dangerous and may cause further damage. Addressing this promptly will prevent more extensive and costly repairs down the line.

Menu

Help & account