So let’s save some money and get those air suspension issues diagnosed ASAP. Here are the 3 most common Land Rover Discovery 3 (LR3) air suspension problems.
1. Air suspension spring leaks
It is one of the most frequent problems with air suspension systems. However, the causes of leaks vary.
Over time, the rubber on air suspension springs deteriorates. Which causes some nasty holes resulting in a leak. The problems may be related to your air springs. If they are displaced or not installed correctly, they can cause holes in your air suspension springs.
The holes in the air suspension springs prevent your air bags from filling up. At best, this causes a slight tilt. In the worst case, your air compressor works too hard and fails. And yes, that means you’ll need to replace the compressor and air springs to bring your Land Rover Disco back to its former glory.
Symptoms of air suspension spring leaks:
- Rough and unpleasant ride
- Pneumatic compressor runs non-stop
- The level of your Land Rover drops/sinks
How to fix air suspension spring leaks:
If you detect a leak, the best solution is to replace the air suspension spring as soon as possible!
Also, check your air struts and make sure they are still working well and installed correctly.
2. Defective pneumatic compressor
This problem is obvious. So make sure you don’t overlook it.
Over time, your air compressor wears out. Sometimes, it overloads in the event of a leak. Either way, this causes your car’s compressor to stop working. Sometimes the factory installed air compressor is defective from the start. The end result is a failed air suspension system. So expect an awkward ride.
Symptoms of a faulty pneumatic compressor:
- Reduced car ride height
- Moaning, clicking, and/or grinding sounds when driving
The best solution for a faulty pneumatic compressor:
Once a pneumatic compressor fails, you will need to purchase a replacement.
3. Broken valve blocks
Valve blocks help circulate air throughout your air suspension system. But once they take some damage, various problems arise. Quite often, broken valve blocks leak air from your air suspension. This leads to lean and forces your compressor to overwork. Other times, they can leak excessive air into your compressor and cause immediate damage.
Valve blocks will create a multitude of costly problems. So don’t leave them unchecked.
Symptoms of bad valve blocks:
- Lower car ride height
How to fix a broken LR3 valve block:
Like other parts of your air suspension, there’s not much you can do once the valve block breaks. So this means your best solution is a complete valve block replacement.