Car Sagging on One Corner
A single sagging corner is the clearest sign of a localised leak. The useful distinction: if the car rises normally at start-up and only drops after long parking, the system is healthy and the leak is slow — the easiest and cheapest case.
Likely causes
- Cracked air spring
By far the number one cause. Cracks start in the lower fold, invisible without lifting the car.
- Valve block leak
An internal leak on one corner's valve. A seal kit is usually enough — the block rarely needs replacing.
- Air line or quick-connect fitting
Plastic fittings fatigue in the heat and start weeping at the collar.
- Faulty ride-height sensor
Less common but real — the system reads the wrong height and sets that corner incorrectly.
What to do right now
- Push down on the low corner and listen — a faint hiss confirms a leaking spring
- Note how long it takes to drop: hours means a small leak, minutes means a large one
- Short drives are possible if the car still rises at start-up, but don't delay the repair
- Send us a video of the parked car from both sides on WhatsApp
What it typically costs
Pressure-testing to locate the leak is part of the free inspection. After that it depends on the part and model: an aftermarket air spring costs less than genuine, and a valve block repair is usually far cheaper than a new block. You get both prices before we start.
Related service
Air Springs (Suspension Bags) — Air spring replacement with OEM-grade parts and a warranty.
Send us a video of the car
A short video of the car parked and another after start-up gives us an accurate initial read before you even come in.