Suspension issues?

I have 2003 3.0 automatic with the M sport suspension (S704) on 17”s. I'm having no end of trouble daily driving it - its far too low and scrapes the underneath and front bumper horrendously. Even small inclines result in me scraping, the amount of times I've nearly ripped the bumper off is not right.

I've read all over the place the different types from Bilstein and people suggesting using Eibech lowing springs to my utter amazement as its pretty much non drivable at this point as it is

I read a post on here regarding suspension, and there was a picture that showed a car with M Sport springs (like mine) and then with Bilstein/ Eibach springs (https://z4-forum.com/threads/bilstein-suspension-b4-b6-b8-b12.106967/), both of these cars appear to be much higher than my car?

I’ve attached images of my white car, both front and back. I know the fronts have Sachs shocks on, but do you think the car might have had extra lowering springs at some point in its life?

Any help would be gratefully received
 

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Fronts are indeed quite low. For reference, I installed B4's + Eibach Pro's and the gap seems to be just enough to not scrape anywhere. I used an E46 top spring pad as it was 6mm thicker than the Z4 top spring pad, so I got myself some clearance height there.
 

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From my research your front Msport springs should be 270mm long. There is a lot of incorrect info out there on may parts suppliers web sites.
 
Okay I think I've figured it out, spoke to a BMW Indy who claimed to have seen this a few times. . . There are two different MSport springs that differ in length from standard (270mm and 276mm), he also thinks they are slightly different in width also. Buying suspension for MSport cars (or buying second hand suspension from a car with MSport) isn't enough to ensure you get the right ones.

He thinks I've got the 270mm MSport springs when I should have the 276mm MSport springs, it's all about the transmission, 270mm for manual cars, and 276mm for auto and SMG cars. He says the weight of the car is lowering it more than it should.

He also said he had seen it whereby a customer had thought they'd fitted standard springs because the car was to high etc

Think it's time to get some new suspension and springs. . .
 
Mines an auto with the 270mm springs and I don't have any ground clearance issues. Lets compare measurements from the centre of the wheel to the bottom of the wheel arch. Mines 354mm
 
Mines an auto with the 270mm springs and I don't have any ground clearance issues. Lets compare measurements from the centre of the wheel to the bottom of the wheel arch. Mines 354mm

Interesting!!! So I've just measured it and it's 330 (see image)??? So maybe I do have some other really lowered springs?

Ignore the road rash wheels ;-), I plan on getting some MV2's at some point.
 

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FWIW, here's my solution to my 2.5Si sitting low:


Regarding the update at the end where it looked high, it's still sat the same, doesn't scrape and looks, in the flesh, spot on.
 
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