Hello,

I've recently bought a used Mercedes CLS 320 CDI (2007) and, because I worry about such things, I asked for a geometry check to be done.
Most things seem to be ok except that I noticed a measurement 'vehicle level ready to drive - rear axle' had a 'D' next to the figures which according to the key means 'Difference left/right (Max. Deviation)'
The readings were:
Left: 1.7mm / -0.90 degrees
Right: 8.4mm / -0.20 degrees
Target: 5.0mm +/- 10.0mm (-0.56 degrees +/- 1.05)

Each individual measurement is within spec, but the report which is a 'mercedes benz chassis measurement' flags up the difference on this reading (along with the rear camber).

I checked the car later that evening to see if I could tell any difference left to right and it appeared that the car was a bit lower on the left side (seemed about a 1 cm down compared to right). After this, I filled the car up (car was very low on fuel) and now the right hand side is about 1cm lower, meaning that the 'tilt' at the rear has changed to tilting the opposite way to before it was full.

My question, after all this, is does anyone understand whether these figures indicate a problem (if so what) and does it make sense that filling the car up with fuel (about 75 litres added to fill the car up to 80 litres) should make the difference that it seems to make. Is the fuel tank on the right hand side of the car (rather than spread evenly accross the rear)?

I have asked the dealer this question, but I suspect they are motivated to minimise the importance of this question given they've just sold me the car.

Any help much appreciated as I am worried that I've bought a car that has been in an accident that has bent things that affect the suspension.