The car sat down overnight. Is that the air springs or the compressor?
Usually the springs, and the pattern narrows it before anything is tested. One corner on the floor points at that corner. All four down evenly points more often at the valve block or the pipework than at a bag. A car that reaches the right height but takes a long time getting there, with the compressor audible for most of it, has been leaking for months and has worn its compressor out doing the work. We still test rather than guess, but that is the order we test in.
Should I convert it to coil springs?
It can be done and some owners here do it. It is a different car afterwards: load levelling goes, access height goes, the raised off-road heights go, and the modules still have to be dealt with so the car stops asking for a system that is no longer fitted. We will price both sides honestly, including what putting the air system right would actually cost, and we will not present the conversion as a repair of the original.
Does low mileage mean much if the car has been parked outside?
On this make, less than people expect. Air springs, coolant hoses, the plastic in the cooling system and the battery age by heat and time rather than by distance. A car that has done a short school run through five Sharjah summers and one that has done long motorway kilometres in a cooler country can read the same on the odometer and be in very different condition at every piece of rubber on them.
Can you just clear the Suspension Fault message?
The message can be cleared in a minute and it will come back, often before you are home, because the module logged it for a reason that is still there. We do clear codes as part of testing, to see what returns and how quickly, which is useful information. We will not hand the car back with a cleared message and call that the repair.
Is the DPF and EGR advice I read online relevant to my car?
Probably not. Most of what is written about Land Rover diesels comes from Europe, where the diesel versions are the ordinary ones. Here the cars in front of us are overwhelmingly petrol, and importing a European fault list onto a UAE car is how a petrol V8 ends up quoted for parts it does not have. Tell us what the car is doing and we will work from that.