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Technical Topics Suspension / Chassis / Brakes Lowering springs for the 330e

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      10-16-2019, 12:43 PM   #1
tommy_sn
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Lowering springs for the 330e

Hi
Anyone know where to get lowering springs for the 330e?
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      10-28-2019, 03:05 PM   #2
eddiehaug
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They don't lower on the 330e. Look:



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      10-28-2019, 06:04 PM   #3
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I was thinking about aftermarket..
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      11-10-2019, 06:33 AM   #4
Mazman
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Damnit this info was not given on the Swedish build site.
I added this option partly to have the car least those 10mm lower without having to go to the aftermarket.

On the build site it says the car is lowered 10mm even for the 330e

The spring must be stiffer on the 330e due the added weight? Thinking if going for an aftermarket setup.


Quote:
Originally Posted by eddiehaug View Post
They don't lower on the 330e. Look:



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      12-22-2019, 09:44 AM   #5
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Anyone found some springs for the 330e yet?
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      12-22-2019, 05:43 PM   #6
dejansokolovski
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Quote:
Originally Posted by tommy_sn View Post
Anyone found some springs for the 330e yet?
Nope nothing yet, been in contact with H&R and they just say probably in the future just don't know when.. we need lower cars, it's like a suv almost!

Don't know about other brands, I tend to like H&R the best anyway
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      12-23-2019, 08:27 AM   #7
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SOmeone have tuv documents for the 330ix lowering springs fro H&R? Read about someone who had used these on the 330e - so I was wondering if the axel weight on these are ok.
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      12-26-2019, 09:23 AM   #8
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Quote:
Originally Posted by tommy_sn View Post
Hi
Anyone know where to get lowering springs for the 330e?
I lowered my bmw 330e with H&R springs 28662-2
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      12-27-2019, 09:12 AM   #9
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But where in the tuv documents does it say that hese springs are ok in terms of axel weight?
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      01-06-2020, 04:55 PM   #10
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Contacted H&R and they say that springs with TUV for the G20 330e will come in about 6 weeks. Dont know how much they will lower the car yet.
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      01-13-2020, 02:21 AM   #11
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320dA Touring xDrive M-Sport Springs for 330e?

I'm looking for a slight lowering for my 330e, and been wondering if the physical measurements in 320dA Touring xDrive M-Sport springs are the same than in 330e. G20 Xdrive M-sport seems to be lowered 10mm or so, unlike previous x-drive models.

The axel weights in 320dA Touring xDrive are very close to 330e, but can't find the information if the spring measurements are the same. Can anyone help with this?
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      04-11-2020, 11:21 AM   #12
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Picking up this discussion, anyone found any lowering springs for 330e yet? Don't see anything from hr yet.
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      04-16-2020, 06:46 AM   #13
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Does anyone know if there is anything available for our SUV 330e yet!?

H&R says they don't know when it will be available, also because of the Corona virus right now they can't get a hold of a 330e to try it out...

Eibach does have a kit for the M340 available, and it's very similar weight and axle weight should be fine too. Does anyone know if that would fit the 330e?
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      04-16-2020, 04:33 PM   #14
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Just an "FYI" on how H&R does their springs.

In general, H&R doesn't adjust really adjust spring rate for weight like BMW does (a 6cyl front car will have a stiffer front spring than a 4cyl one), but instead they tend to use the same spring rate for all models, and then only vary the free length of the spring depending on the vehicle's weight (or xdrive vs rwd).

Below are spring dimensions and assignments from H&R's G20 TUV documentation:

You'll notice that springs "1" and "2" for both the front and rear axles have the same wire diameters, same number of coils, and same external diameters. This means that these springs will have the same spring rate. The only difference between them is the free length. Since they have the same spring rates, springs "1" and "2" will compress the same amount given the load, so the height difference between them will just be the difference in starting length. So spring "2" will be 9mm higher than spring "1."

The F30 330e had higher spring rates than other F30 models due to its higher weight. For both the base suspension and M-Sport trims it had the same springs as the 4-cyl F34 (3-GT) xDrive, which was the heaviest F3x aside from the convertible.

H&R could end up recommending the "2" front spring and "4" rear spring for the 330e since the "2" front spring is sufficient for the 6cyl 330d front, and for the F3x generation they used the same spring for the wagon and GT in the rear.
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Last edited by FaRKle!; 04-16-2020 at 04:46 PM..
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