How are these lowered? Just picked the car up and not too many people know much about them. I have a 2012 XJL Portfolio. Is it air suspension like the benz', or springs? If so who makes them so I can order?

 

Good luck. To my knowledge, no one here has lowered one (there are a few photo-chops posted, but all are fake). The XJ has traditional springs in the front and air in the rear. I'm not aware of anyone that makes an aftermarket suspension either, so you'd have to build a custom solution if you really want to lower it.

 

Your car is equipped with a self-leveling rear air bag suspension. Any attempt to modify the extremely well engineered suspension of this beautiful machine is not advised.

 

In theory, you could get lowered front coil overs, and in turn the rear air springs will try to compensate by also lowering. However, you may run into the chance of a suspension fault or "Vehicle to low" message displayed. I dont think anyone makes lowered front coil overs for the front though as they would need to be compatible with the adaptive dampening system the X351 has.

 

Air ride or a custom set up, replaces your whole suspension with a new/custom set up. You are looking at 6-9k and no telling how the car's computer will react to it.

 

 

For the rear, I read another post on here where a member relocated the height sensors to accomplish lowering the rear.

 

Just curious, why would you want to lower a car which only has 4.1 inches of ground clearance in the first place? At least where I now live, the speed bumps in the shopping centers are already 4 inches high.

 

To sum up all the above advice..............DONT!

 

Why not???

 

+1 on this method for the rears.

For the front, old school was to cut a part of a coil off to shorten the spring. Older old school would be to heat the front springs with a torch and they will sag. Be careful not to catch anything on fire. Your ride and durability will suffer, the more you do, the worse it will be. Be ready with stock parts to make it all better again if it renders it entirely effed up.

 

I think that advice applies to the whole car but modders will mod. Sometimes just cuz.

 

At least, the factory springs are rather inexpensive if needed as replacement.

I lowered my brand new '15 Stingray 10 minutes after bringing it home from the dealer. I never had the same inclination to lower the XJL. I think it looks great, handles fine for a big limousine as it is but, I also recognize that personal tastes differ :-).

 

 

come on now, Thats not nice, rest assured I will return the car to its original boring state when I get bored with it and decide to sell or trade it

 

You can lower the front by replacing the cups under the spring.
№3 on the pic:

The problem is that you have to make them )))
Rear is easy? just replace sensor stick.

That will give you factory suspension but lowered )))

 

Bump... curious if anyone has successfully done it yet?

 

Anyone?

 

Can yu go into detail on how this all can be accomplished...like how you personally would go about doing this mod.

 

late to the party but ive lowered my 2011 jaguar xjl supercharged on air ride suspension. It wasnt easy and had to do a full custom build. Went to GMP performance for the install and its waiting in the wings to be put together. All together it ran me $8000 with a new air intake, fuel line, pump, injectors, and mina gallery exhaust. Will post pictures when finished.