uique auto spares. Car Shocker Baloone.Common Symptoms of a Faulty Rear Air Spring Sagging Rear End: The rear of the vehicle sits lower than the front, especially after being parked overnight. Uneven Ride Height: One side of the car is lower than the other. Noise: A hissing sound may indicate a leak in the air spring. Suspension Warning Light: The dashboard may display a suspension fault warning. Rough Ride: A failed air spring can lead to less cushioning, resulting in a bumpy ride.unique auto spares.