Loss of the luxury driving feeling after air suspension callibration

Hi,

I'm a newbie to this forum and to Land Rovers in general. Just bought a beautiful looking Range Rover Vogue 2004. I had a height sensor replaced last week and consequently had the air suspension calibrated. Unfortunately the ride now seems much bumpier, as if the suspension has been stiffened. How do I get back to the luxury driving experience were the car felt as though it was floating along the road? Can the calibration effect the softness of the ride?

Really keen to get to the bottom of this as it's taking away the driving enjoyment.

Regards,

Mark

My first check would be to ensure the vehicle is riding at the correct ride heights....

On the P38 you measure betwwen the centre of the wheel arch and the centre of the wheel rim for all 4 corners and see if they are with a few millimetres of eachother....

I know the distances for the P38 but not for the L322....

Not saying this is the case but if at 'Standard' ride height the physical measurement is lower than the specifications say, this could affect ride comfort.....

Find out what the ride height phsyical heights are to be, and get out there with a tape measure and see if it is riding low...

scuffian said:

Hi,

I'm a newbie to this forum and to Land Rovers in general. Just bought a beautiful looking Range Rover Vogue 2004. I had a height sensor replaced last week and consequently had the air suspension calibrated. Unfortunately the ride now seems much bumpier, as if the suspension has been stiffened. How do I get back to the luxury driving experience were the car felt as though it was floating along the road? Can the calibration effect the softness of the ride?

Really keen to get to the bottom of this as it's taking away the driving enjoyment.

Regards,

Mark

Click to expand...

If the suspension was lifted from where it was, ride will be harsher. The higher it is lifted the more air pressure is in the bags.

Saint.V8 said:

I know the distances for the P38 but not for the L322....

Click to expand...

What are the P38 distances? I've always suspected my P38 is higher than everyone elses'.

Height Measurements...

Thank you for your answers. I've spoken with the garage who calibrated the car. By the sounds of it they use an external garage. The mechanic did have trouble calibrating due to the low profile tyres (285/35R22). His calibrating equipment not ideal for such tyres. The car is back in the garage later this week so fingers crossed. I miss the luxurious floating feeling which is one big reason why I purchased the Vogue.

Thanks again for your help.

Regards,

Mark

The tyres have no effect on the calibration.

Datatek said:

The tyres have no effect on the calibration.

Click to expand...

They do if they use factory calibration, measuring from floor to arch. If wheels are wrong size. Tyre pressures must be correct Etc. Much easier from centre of wheel to arch.

Low profile will also give a harsher ride than standard tyres ...

If they did the factory calibration using Testbook they would have used spacer blocks between the axle and the body so wheel/tyre size doesn't matter.

dave4x4 said:

If they did the factory calibration using Testbook they would have used spacer blocks between the axle and the body so wheel/tyre size doesn't matter.

Click to expand...

One would wonder why when Testbook is used to calibrate the system, all tyres must be same size and at the correct pressure with a level floor in all directions. Think the blocks are used on the production line more than in dealers.

Thanks again for your help. All I know is the car floated on air last week. Now, after the air suspension calibration the ride is much harsher.

Hoping once it goes in again this week they'll get the calibration right.

scuffian said:

Thanks again for your help. All I know is the car floated on air last week. Now, after the air suspension calibration the ride is much harsher.

Hoping once it goes in again this week they'll get the calibration right.

Click to expand...

If they only changed one sensor, only that corner would need resetting. Ask them why they played with all the lot.

Can just one or two inches of the wrong height make such a difference in the ride quality? I am surprised at how much the ride has changed.

scuffian said:

Can just one or two inches of the wrong height make such a difference in the ride quality? I am surprised at how much the ride has changed.

Click to expand...

Yep...

Surprising isn't it??

scuffian said:

Can just one or two inches of the wrong height make such a difference in the ride quality? I am surprised at how much the ride has changed.

Click to expand...

Yes, there is more air pressure in the bags making them stiffer.

Hi Wammers........I'm convinced the back end of the car is sitting low at standard height setting. Is that what you'd expect if the air pressure was too high?

scuffian said:

Hi Wammers........I'm convinced the back end of the car is sitting low at standard height setting. Is that what you'd expect if the air pressure was too high?

Click to expand...

Well no, it would sit higher if air pressure was higher. You would also get a harsh bumpy ride if it was set to low.

Here's the side view. Certainly looks low to me. What do you think?

scuffian said:

Here's the side view. Certainly looks low to me. What do you think?

Click to expand...

Looks low to me also. Looks to be around motorway height. Which will give you a bouncy ride on normal roads. If so it needs to go up around 25mm. I don't know the height settings for the L322. But on the P38 motorway is 25mm less than standard. But why reset all the corners if he just replaced one sensor? Just resetting the changed corner was all that was needed.