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[RobG]

Mine is 2.0 "sport" and she has S/L shocks, so why couldn't your omega have it? I need need new shocks too but I'm considering an option to buy some used shocks with low mileage....the problem is they are very hard to find.

self levelling shocks dont age well. Rust develops under the air bladders and eventually the oil leaks out, damping is lost and the wheel bangs and bounces over bumps. Used can be a false economy reguardless of mileage.
Retail in uk is £300 a pair.
But with a trade club card, or from andyc on here, they are £150 a pair plus delivery.

£182.00 with the VAT

[Chris_H]

Just for the record and in view of me being in the same situation (Elite saloon with leaking rear dampers) I rang Monroe and they apologised that the (in my case LA360) load-levelling ones could not be coupled to the Vauxhall/Omega self-levelling system.

That being said, it can probably be done, it's just a matter of how much aggro it would take.  Hence the cost might be prohibitive.

As it is, the Monroe online shop say 180.66GBP with UK-only delivery.  This does not look like a price saving compared to Vauxhall TC price.

[fcc-pt]

I really don't know why the mechanic said that I would have to replace the rear right side shock?

He claims that a good job would be replace both shocks!
When I look at the omega I can't see anything strange with the rear suspension...

Sometimes it might take a while till the air compressor stop but I don't know if it's due to malfunction.

I'm a bit afraid of replacing good shocks
In your opinion how can I test them?

I don't see any oil leaks beneath the rear.

[fcc-pt]

The mechanic claims that only the right side shock need to be replaced!
Shouldn't I see something strange on the right side?

[feeutfo]

It is always recomended to change suspension and brake parts in axle pairs. So be aware that uneven performance may result.

[Chris_H]

I really don't know why the mechanic said that I would have to replace the rear right side shock?

He claims that a good job would be replace both shocks!
When I look at the omega I can't see anything strange with the rear suspension...

Sometimes it might take a while till the air compressor stop but I don't know if it's due to malfunction.

I'm a bit afraid of replacing good shocks
In your opinion how can I test them?

I don't see any oil leaks beneath the rear.

Crude tests are:

• Bounce the corner of the car by pressing down on it and seeing if the suspension does too many rebounds (one overshoot and come to rest is OK)
• Visual inspection for dampness due to loss of oil - IIRC mine showed up with the axle lifted off the ramp, so damper fully extended
• A possible third for load-levelling ones, check that the left and right sit at the same height on level ground (I'm not sure if an air leak in one would take both down)

I doubt if a mechanic would do any more than this.

[fcc-pt]

Need some help on how to replace air shocks, I haven't received them YET but in a week or two I will have them.

[albitz]

Support the weight of the car body with trolley jack,remove top nut and bottom bolt,unplug airpipe and remove shock.Replacement - the same in reverse.

[fcc-pt]

Just this? No worries about the air circuit pressure? If I unplug the left shock air connector the right shock will not come down instantly?

[albitz]

If the weight of the car is supported it wont matter if it does.The car cant go down with it.I dont think there is any air pressure when the engine isnt running anyway.

[Entwood]

Air is "trapped" in the system so will be released as the pipe is pulled, and is released from both sides at the same time.

Therefore, if the car is still supported by both the wheels, both suspensions WILL drop.... mind your arms/head

If the car is only supported on a single jack/stand on one side, the other side will drop. This could cause an unstable situation on the jack/stand and the car could fall off the jack/stand. BLOODY DANGEROUS. MIND YOUR WHOLE BODY

If the car is supported on stands, on both sides, as it should be, nothing will happen. 

[albitz]

True enough. Axle stands will be the support of choice for the job.
Should have thought to mention stands in earlier post.

[fcc-pt]

Like I thought, so where should I place the jacks?

[Entwood]

For working on the rear I place axle stands on the "dishes" where the rear suspension doughnuts are bolted to the car. seems to be very stable that way and access to the wheel arch area is unimpeded.