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2018 Range Rover Velar Air Suspension Fault - Uneven Ride & Warning Light

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Jennifer H. · rep 0 · May 22, 6:37 AM · 1 replies · solved · Question

Vehicle: 2018 Land Rover Range Rover Velar R-Dynamic HSE

Hey everyone,

I'm having some serious trouble with my 2018 Range Rover Velar R-Dynamic HSE's air suspension. Lately, I've noticed the ride feels really off, and sometimes it seems like one side of the vehicle is sitting lower than the other, especially after it's been parked overnight. It's not consistent, but it's happening more frequently now.

Yesterday, the 'Air Suspension Fault' warning light came on the dashboard, and the ride became noticeably harsher. I tried cycling the ignition, but the light eventually returned. I'm worried about driving it like this, and I'm wondering if this is a common issue for Velars of this vintage.

Has anyone experienced this before? What are the typical culprits for this kind of problem? I'm trying to get a sense of whether this is something I can troubleshoot myself or if it's definitely a trip to the dealership. Any advice on what to look for or potential costs would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 6:37 AM

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ClearTheCode admin answer:

An 'Air Suspension Fault' on your 2018 Range Rover Velar is a common concern for Land Rover owners, often indicating an issue within the complex air suspension system. Addressing this promptly is crucial for both ride comfort and vehicle safety.

Here are the typical causes and steps to consider:

  1. Common Causes:

    • Air Leak: This is perhaps the most frequent cause. Leaks can occur in the air springs (often called 'air bags'), air lines, or at the valve block. A leak will cause the system to work harder, eventually leading to compressor failure.
    • Air Suspension Compressor Failure: The compressor is responsible for generating the air pressure needed to inflate the air springs. Over time, the compressor can wear out, especially if it's constantly running due to a leak. Symptoms include slow inflation, excessive noise, or complete failure.
    • Height Sensor Malfunction: Each corner of your Velar has a height sensor that tells the control module the vehicle's current ride height. If a sensor fails or sends incorrect readings, the system can become confused, leading to uneven ride height or fault codes.
    • Valve Block Issues: The valve block directs air to and from the individual air springs. Internal failures or blockages can prevent proper air distribution.
    • Electrical Issues: Wiring harness damage or a faulty Air Suspension Control Module (ASCM) can also trigger faults.

  2. Diagnostics (OBD Codes):

    • A diagnostic scan with an OBD-II tool capable of reading chassis codes (C-codes) is essential. Common codes related to air suspension include:
      • C1A20: Pressure sensor fault.
      • C1A00: General air suspension system fault.
      • C1A36: Exhaust valve fault.
      • C1A13: Pressure increases too slowly when filling reservoir.
      • C1A04: Front left/right height sensor fault.

  3. When to See a Shop:

    • Immediately: If the vehicle is severely leaning, bottoming out, or if the warning light is red and advises against driving. Continuing to drive in such conditions can damage other components like tires or suspension arms.
    • Soon: If the warning light is amber, the ride is noticeably compromised, or you suspect a leak. While some minor leaks might allow limited driving, prolonged use will strain the compressor and lead to more expensive repairs.

For a Velar, air suspension repairs can range from a few hundred dollars for a sensor or minor leak repair to over a thousand for a new compressor or air spring replacement. Given the complexity and safety implications, it's highly recommended to have a Land Rover specialist or a reputable independent shop diagnose and repair the issue.

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