C5 X7 - A loud bang and the right side fell

[n0stra]

This "guessing game" is silly......the car needs to put on a ramp and inspected....

Having a list of potential suspects is not "silly". You do you, if you have nothing to contribute besides name calling I would recommend you go somewhere else.

[Kees]

This error is because of the lds Nivea is to low, it's probably in the blown sphere, the volume of this one is 385 cm3.
If it's necessary to drive the car for repair, you can add 1 liter lds, then the error will disappear.
Greetings,
Kees.

[n0stra]

This error is because of the lds Nivea is to low, it's probably in the blown sphere, the volume of this one is 385 cm3.
If it's necessary to drive the car for repair, you can add 1 liter lds, then the error will disappear.
Greetings,
Kees.

Always cautious when refilling since I know about the problem with overflowing reservoiars killing the pump lying underneath.

Is there an easy way to check which sphere is blown? I guess it most likely is the one on top of the front right strut since its this corner that has the biggest issue. Can you do that through Diagbox?

[Vic Evans]

This "guessing game" is silly......the car needs to put on a ramp and inspected....

Having a list of potential suspects is not "silly". You do you, if you have nothing to contribute besides name calling I would recommend you go somewhere else.

Ouch!

[n0stra]

So it seems the broken sphere checks out on all symptoms. Getting a Diagbox ready also to make an analysis.

So it seems the sphere broke, half a liter of LDS went into the sphere and thus made the system loose too much fluid making the front right side drop down. It would also explain the stiffness in the same corner.

Looking at new spheres. They are not as easy to come by here in Norway. I have been recommended getting new ones from the producer I.F.H.S. in Belgium.

[Kees]

Ifhs Is a good brand, some people say this factory produces them for Citroen.
With the diagbox you can't diagnose something about the sphere's.
The only thing you can do is remove the suspected sphere and see is the lds is pouring out of it, this means that the membrane is broken.
But before you have to depressurize the system.
Greetings,
Kees.

[xantia_v6]

The only problem with the theory is that the left/right pressure in the system will equalise and the anti-roll bar will pull the suspension back to level .

I think that there is a mechanical failure or seized ram.

[n0stra]

The only problem with the theory is that the left/right pressure in the system will equalise and the anti-roll bar will pull the suspension back to level .

I think that there is a mechanical failure or seized ram.

What is a "seized ram" ? And how does that explain the lost LDS, the stiff suspension on front right, and the drop on front right?

[kantica]

The only problem with the theory is that the left/right pressure in the system will equalise and the anti-roll bar will pull the suspension back to level .

I think that there is a mechanical failure or seized ram.

What is a "seized ram" ? And how does that explain the lost LDS, the stiff suspension on front right, and the drop on front right?

LDS went somewhere, could be to the broken sphere, BUT if only the sphere were broken your car should still stand level and not askew. I think you are loosing LDS via your front right hydraulic cylinder / ram / strut.
As suggested by others you should go to the ramp and check the car from below. Check your height sensor, check anti-roll bar and its bearing/bushing, check front hydralic cylinders and hydraulic pipes etc. basically check whole front suspension.

[n0stra]

The only problem with the theory is that the left/right pressure in the system will equalise and the anti-roll bar will pull the suspension back to level .

I think that there is a mechanical failure or seized ram.

What is a "seized ram" ? And how does that explain the lost LDS, the stiff suspension on front right, and the drop on front right?

LDS went somewhere, could be to the broken sphere, BUT if only the sphere were broken your car should still stand level and not askew. I think you are loosing LDS via your front right hydraulic cylinder / ram / strut.
As suggested by others you should go to the ramp and check the car from below. Check your height sensor, check anti-roll bar and its bearing/bushing, check front hydralic cylinders and hydraulic pipes etc. basically check whole front suspension.

Not possible im afraid. Costs 300 euros just to have it raised in a garage to get looked at before the cost for someone actually doing anything.

I don't have access to anything like this privately and nobody rents out.

I can lift it up on jack etc, I can check underneath (as I have already done). This is the reason why i like to check with people before attempting to do anything

Rear hight sensor is fine.

[xantia_v6]

A relatively easy check is to swap the left and right spheres.

[Kees]

A lot of misunderstanding!!
The car will not rise at the normal level when a sphere is blown, the anti rollbar is not capable to do this. Also, because this car has only one high sensor, the car lift, but not to the correct high.
That the system works correct is, because when there was enough lds in the tank he could raise the car with the switch inside the car.
So replace the sphere and everything will be fine.
Greetings,
Kees.

[n0stra]

A relatively easy check is to swap the left and right spheres.

I read you can also measure the weight?

I see a lot of tools recommended to release the spheres (after doing depressurisation of course), any suggestions?

[n0stra]

Ifhs Is a good brand, some people say this factory produces them for Citroen.
With the diagbox you can't diagnose something about the sphere's.
The only thing you can do is remove the suspected sphere and see is the lds is pouring out of it, this means that the membrane is broken.
But before you have to depressurize the system.
Greetings,
Kees.

So I should attach something to avoid leakage all over the engine bay then

[aerodynamica]

The only problem with the theory is that the left/right pressure in the system will equalise and the anti-roll bar will pull the suspension back to level .

I think that there is a mechanical failure or seized ram.

I agree, one failed sphere should not cause unequal height across the axle. All three spheres at the front are connected across the axle.