Does my Q have active suspension or version of?

[O5Q45]

I know all 05 and 06 Q's have the dampened suspension with the sport/normal button. But my question is from what I've read there are variations of this active suspension from its inception on the G50's I believe. So does mine have all the componants of the active or is it a similar set up... Wondering if I will have the problems others have as there Q ages. I've noticed my rear end of the Q doesn't seem to be as smooth as it was. It feels like it's stiff and doesn't have much wheel travel on dips and bumps. I've also noticed a creak/grunt when the right rear is forced to travel up or down..

[O5Q45]

I forgot to mention the milage on the aforementioned post. I've got almost 95,000 miles-

[EdBwoy]

From what I've read, the y33 and f50 vehicles with the adjustable suspension only had action in the front. The earlier g50, in q45a (A for active) trim are the ones that had all the hydraulic work in the back as well. And if you do have the sport button, the all it does is adjust the damper rate. I had a 2001 q45t and when I switched it to luxury mode, the front would bounce about 2 or 3 times and softly kill any bumps. In sport mode, it was a night and day difference and it would bounce pretty stiffly.

What I think is going on in the back of your car (especially at the mileage, thanks for adding that) is that the shocks are dead. It happens in many Nissan sedans. Do the push/bounce test at the rear or take it to a shop to be sure. And IIRC, you can get rear shocks made for a 350z as a direct replacement if you can't give up your first born child to get the OEM ones. It only drops it very slightly compared to the original ones, but at least behaves better.

[O5Q45]

Only in the front huh? I didn't know that.. with the F50 you can't tell a difference in sport or normal. I've even driven it with the electronic cap looking things with the wires coming out of them twisted off. The light doesn't even come on. The sport light still illuminates.. I almost wonder if it's a dummy switch/system to make you think it's fancy..where could I find info on the system in place on my F50? Service manuals on here? Idk.. I would have sworn the rear were hydraulic actuated too.. so what does the front do when dampened? Just a valve that controls the flow in and out of the shock?

[O5Q45]

What year 350z rear shocks go on my 05Q?

[O5Q45]

After reading the FSM, the F50 is front and rear active damping suspension. It's fully controlled by an active "box" and is part of a dual orfice power steering system. The power steering system is the active damping componant other than the actuators and the control unit. There's a self diagnosis procedure as well. FSU and RSU and PS in the FSM details the system. So, my question is, how would the rear shocks off of a Z work in this vehicle? Would I have to disconnect the active assemblies?

[EdBwoy]

I stand corrected. Well, then the 350z shocks wont help those who have the active suspension... unless you want to disconnect the system and get a standard suspension for the back.

[O5Q45]

Unfortunately ALL 05 and 06 model Q's have the active suspension. It became standard equipment across the board... Well, all 1200 of them, 05&06's. I guess I would have to loop the system after no longer using active shocks.. I read about the fail safe mode but it doesn't go into any detail about parameters and ride quality, other than failsafe is a predetermined setting..

[chipahoy]

that's not true. the q45t has active suspension on all four struts and each strut has its own actuator. the struts are hard to find, but try Coulter infiniti in Mesa, AZ. they have pretty much everything. just purchased two rear struts (active) from them. pricey though, $500 for the pair.

[O5Q45]

Wow 500 for the pair is a hell of a deal compared to the 1100 for one air strut for the Lexus LS430 we had. I'll be glad to get them at $500- I am missing what part isn't true? I am in agreement with everything you said about the q45t and it is the same on my 05 Q. We're you talking about the failsafe? I do wo see how that would work in the event of a high pressure line rupture and not having any fluid. I'll give the dealer you mentioned a call-