A Luta Continua - My Merc E class

Can't see nuffink, I just have a squint. It's all covered by a wheel arch liner. Would have to get the wheel off and remove that. I think more is visible if you remove the interior panels from the boot area as well.

Al, I've been filling some spare moments by hunting around, no guarantees. Feel free to ignore.

It appears that there is only one rear sensor and the rear level is adjusted for both sides equally. The system focuses on balancing the pressure, so provided all the same equipment is used the two sides will be level.

Pretty much anything that can go wrong appears to be almost certain to affect both sides equally with the exception of air leaks (usually in the air bags). Given that, then I struggle to see what can be wrong only on one side. Air leaks can be detected because with the engine running the car can usually cope and will level the car, whereas the longer the car is left not running the more pronounced the difference will become.

All possible system adjustment on your car affects both rear sides equally.

Pretty much the only thing that will tilt the car is a physical difference. Especially when it is at rest, but maintains that difference when running. Now I was originally thinking that something would be bent. However, it turns out that there are slightly different parts produced for these vehicles. This is not an issue in any way and will have no impact on the level, provided that both sides are actually pairs - from there the sensor and airbags will sort it out.

It seems possible therefore that perhaps your two sides are not pairs. Given that you said earlier something about traces of damage and replacement on one side only, then perhaps something has been replaced on one side and not the other. This could be as obvious as the length of a damper or spring or other suspension part, or perhaps the size of a stop, or a mounting bracket.

Woz it me, I'd have the thing up on the ramp when it was at the indie's and be having a very extensive hunt around and compare before I started ANY expenditure.

If my understanding is correct, and it may not be, then you're looking for something fairly obviously different between the two sides.

Like accounting, it'll be something the equal to, twice, or perhaps half the visible height difference.

The only other thought that occurs, is that a low back corner isn't being caused by a high front quarter, is it? [I'm not even going to suggest that you check all four wheels and tyres are the same].

Broken spring maybe? Result if it is.

Dunno, never had one. But I gather they're not uncommon. Relatively cheap fix though I think. Hope it's something straightforward like that anyway.

Could be I've known people have them snapped and not really notice for a while. worth having a good look at.

I had a front coil spring go on the previous car just under a year ago. 

I don't know that I would have noticed immediately from "attitude", but I suspect I would have from driving.

Luckily, it went as I prepared to set off from the drive, and inspection made it pretty obvious what had happened.