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Discussion Starter #1
I recently purchased a used 2003 330xi with lowered springs on all four corners. My opinion on doing such a thing to an xi may save someone a set of tires. The tires on this car have under 10k miles on them. All four tires are completely worn off on the inside edge. So save yourself some trouble if your thinking about lowering your 330xi. That is unless you plan on trying to somehow fix the camber angles. I installed stock springs back in the car today. She sits like she should now and the tires no longer are looking like the front end has been squashed down permanently. Now I need to buy new tires for it even though the thread on them is probably good for another 30k or more on the rest of the tire.
 

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The Boss of Nobody
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I recently purchased a used 2003 330xi with lowered springs on all four corners. My opinion on doing such a thing to an xi may save someone a set of tires. The tires on this car have under 10k miles on them. All four tires are completely worn off on the inside edge. So save yourself some trouble if your thinking about lowering your 330xi. That is unless you plan on trying to somehow fix the camber angles. I installed stock springs back in the car today. She sits like she should now and the tires no longer are looking like the front end has been squashed down permanently. Now I need to buy new tires for it even though the thread on them is probably good for another 30k or more on the rest of the tire.
Welcome to the fun world of the Xi suspension. There are other options for lowering the Xi, but most are considerably more expensive. My Xi wears a bit more on the inside as well, but not to the degree you're expressing. Tires are the least of your worries when entering the realm of lowering the Xi, fear more the damage of CV boots and ball joints.
 

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Discussion Starter #3
The previous owner has already replaced the lower arms, wheel bearings and boots. I have read about the results of lowering an xi car. Why people do it is beyond me. I also passed on installing new BMW springs and installed a new set from Suplex Spring.
 

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Hmm.. Ive done some research about this on the different threads/forums.. as long as you don't slam it and lower it mildly it should be okay. HR Springs and new shocks is a good setup, or coilovers which allow you to lower the car a lot.. which i dont think it is a good idea. Plus they make the suspension ALOT stiff.

Maybe the previous owner didn't put the right type of springs on the car? If the person changed the springs, they should have changed the shocks too, otherwise it could cause premature wear.

But its good to hear the issues that people have from actually doing it. I know the CV joints can be an issue.
 

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im still debating if it is worth it to get a drop? lol one side of me is saying yes it will look good and the other is $$$ cant spend to much and it will cause all these problems
 

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Discussion Starter #6
This car had new Bilstein shocks put in with the H&R lowering springs. I have been driving this car for the last two weeks. From my own experience the suspension is constantly bottoming out on both the front and rear end when going over good size bumps and dips. The front end bottoms out more that the rear does. When I say bottoms out, I do mean bottoms out. It is loud enough to wake the dead up when the suspension hits bottom. The front struts did have the dampers on them. They are mush now. I installed all new dampers and coil seats. I'm surprised that there is no tower damage to the car. After today the car will be back where it belongs riding high and mighty once again.
 

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Discussion Starter #7
The rear coils are in and what a difference in

the way the car handles and drives. No more over-steering in the front end due to the tires leaning inwards at the top. The car no longer bottoms out. I also swapped the front tires to the rear due to the inner edge being worn down so badly. Guess what else changed. My driveline vibration that I thought was a bad front CV shaft was the front tires all along. What a pleasure it is to drive this car now. The rear springs are a simple swap out. Here is how I did it. Loosen the lug nuts. Put the car up on blocks or stands. Put a floor jack under the rear suspension arm and jack it up a little bit. Remove the lower shock bolt. Let down the jack. Use the spare tire car jack to open up the suspension. Just slip it in beteen the suspension arm and body lip on the inside of the wheel well near the coil spring. Remove the srping. Leave the upper coil seat in place if you are not replacing it. Install the lower coil seat on the new spring. The springs only go in one way because they have to fit the coil seats. You may need to pry the bottom of the coil spring over the suspension arm nub ever so slightly to get them in. Jack up the lower suspension arm to re-attach the rear shock. Remove the jack. Install your tire and snug up the lug nuts. Lower the car and tighten the lug nuts to spec. This has to be the simplest coil spring install that I have ever done.
 

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This car had new Bilstein shocks put in with the H&R lowering springs. I have been driving this car for the last two weeks. From my own experience the suspension is constantly bottoming out on both the front and rear end when going over good size bumps and dips. The front end bottoms out more that the rear does. When I say bottoms out, I do mean bottoms out. It is loud enough to wake the dead up when the suspension hits bottom. The front struts did have the dampers on them. They are mush now. I installed all new dampers and coil seats. I'm surprised that there is no tower damage to the car. After today the car will be back where it belongs riding high and mighty once again.
That's interesting. It's good to hear the experiences of people who have had their XI lowered. I was thinking of going with a HR Spring/ Koni Shock or Blisten Shock setup sometime in the future.. not any time soon. I haven't heard of many problems with bottoming out unless you were still riding on stock shocks. Heard more about the CV joints.
Thanks for the information.. maybe I won't lower it now. :dunno: I just wanted to lower it a bit and put 18" wheels nonstaggered.

EDIT - Were they HR Sport Springs or HR Race Springs? Because Race Springs would drop the car drastically and are not ideal for an XI.
 

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Discussion Starter #9
The springs were sport springs not race.

I just went for a 20 mile ride with the car over some really bumpy roads. She handles really nice now. I would highly reccommed that anyone considering lowering their xi look into the facts and truths before doing such a thing to your car. The suspension should definitely be altered to straighten out the top of the tires so that you are not wearing out the inside edge.
 

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Just FYI.....this isn't limited to XI's. My normal RWD 323 is fitted with H&R lowering springs and has the same problem. But it corners HARD!
 

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Just FYI.....this isn't limited to XI's. My normal RWD 323 is fitted with H&R lowering springs and has the same problem. But it corners HARD!
o0 ok.

Reminds me of this movie "my brother is a trucker and on his bumper he has a sticker saying 'Born hard" LOL
 
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