Hi all,

I have been following this keenly for the last few weeks and have binge watched Sam's videos (very helpful by the way). I am having the same issue as all of you, the worst from the offside rear, offside front goes over the bump hard but not awful, then the rear hits it and it reverberates through the whole car! It does seem to stiffen up the rear based on what the front goes over.

I think my rear shock needs replacing, a bit of weeping from it, and doing the bounce tested mentioned earlier in this thread it bounces a lot more than the other corners (with the engine on and off). It seems the damping in this shock may either be on or off with no in between.

I have found (as mentioned before), that tyre pressures make a huge difference with the reverberation. But it is still poor going over joints in the road and potholes. It is badly shown up by my girlfriends Fiesta for ride quality!

Next job will be doing the shock and all rear tie rods, the fixings are very rusty though so may lose patience with it and get the garage to do the rear arms as well.

I'm on new shocks all round and it's still a bit harsh over small road faults but I think this is just how they are. It was better in this respect on the old shocks ( 170k miles) but the dynamic handling at speed is better with the new ones so I prefer this compromise. Don't just replace one side - do them in pairs. Also I suspect the height sensors which also incorporates accelerometers may contribute to a poor ride if the pivot gets sticky / stiff so it may be worth going round eack one, detatching the arm end connector and seeing if the pivot is stiff. 2012 TDV8 Vogue (L322)

The accelerometers are behind the front wings and in the spare tyre well. The height sensors only send height, but to 2 systems so 6 wires, but they need to be free, as you say, as height taken into account.

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

They may send the speed of height change to the ECU as the sensor is measuring the motion of the suspension i.e the terrain under the wheels whereas the body mounted sensors are measuring the motion of the mass supported by the suspension. 2012 TDV8 Vogue (L322)

JayGee wrote:

I'm on new shocks all round and it's still a bit harsh over small road faults but I think this is just how they are. It was better in this respect on the old shocks ( 170k miles) but the dynamic handling at speed is better with the new ones so I prefer this compromise. Don't just replace one side - do them in pairs. Also I suspect the height sensors which also incorporates accelerometers may contribute to a poor ride if the pivot gets sticky / stiff so it may be worth going round eack one, detatching the arm end connector and seeing if the pivot is stiff.

The height sensors do not incorporate accelerometers.

telly-addict wrote:

JayGee wrote:

I'm on new shocks all round and it's still a bit harsh over small road faults but I think this is just how they are. It was better in this respect on the old shocks ( 170k miles) but the dynamic handling at speed is better with the new ones so I prefer this compromise. Don't just replace one side - do them in pairs. Also I suspect the height sensors which also incorporates accelerometers may contribute to a poor ride if the pivot gets sticky / stiff so it may be worth going round eack one, detatching the arm end connector and seeing if the pivot is stiff.

Did you do a calibration on the Adaptive after changing the shocks..?

GraemeS wrote:

The height sensors do not incorporate accelerometers.

Yes, wheel/suspension acceleration as calculated by the CVD ecu, but the sensors themselves don't incorporate an accelerometer.

I think also the body mounted accelerometers just detact braking, acceleration and cornering. 2012 TDV8 Vogue (L322)

I have a 3.6ltr late 2007, and my suspension seems a little harsh, I don't remember it being like that. So following this post for ideas on the problem.

2007 was before the variable damper system so the obvious places to look at are tyre type ( AT tyres have stiffer sidewalls) tyre aspect ratio and tyre pressure. 2012 TDV8 Vogue (L322)