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      08-17-2017, 06:22 PM   #57
misterjim
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Drives: 2008 e93 335i
Join Date: Apr 2007
Location: Rochester, NY

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Quote:
Originally Posted by Dmitry83 View Post
OK, let's go with 428i vs 328i (Pre-LCI accordingly).


4 and 3 have different
- shocks
- front & rear subframes
- rear knuckles (or hub- don't know that part exact name on English)
Last two make the track (axle) 14mm wider.

Rear sway bars of both 4 and 3 are equal 12mm with standard suspension.
3 has 13mm with M-Technik, 4 has 14mm with 14mm M-Technik.

Front sway bars are equal- 24mm standard and 24,2mm M-Technik.

Also 4 has the reinforcement V-bar under the bottom.

All the control arms & bushings are equal.

That's all the differences- seems nothing dramatic, but as a bit experienced drivers know the different settings of springs and shocks can transform a car you cannot recognize it if driving blind.
For now having added the bits in the signature I've finally got a true BMW feel. (Will also risk to install M135i front and rear sway bars this week!)

430i vs 330i (LCI):

Shocks are new to Pre-LCI on both 4 and 3.

Rear subframes- unchanged.
4 rear sway bars are now same 12mm for standard, 14mm (former M-Technik) for Adaptive, 15mm for M-Technik
3 rear sway bars options are unchanged.

4 front sway bar M-Technik is 25mm, while 3 has 24,6mm M-Technik. Standard ones are equal for 4 and 3- no data on thickness, but seems 24mm as on Pre-LCI.

Again- all control arms & bushings are equal on 4 and 3- only the front axle is wider by 14mm and rear axle- by 22mm on 4 Pre-LCI.
LCI 4 and 3 have equal front axle, rear is just 6mm wider on 4.

That's all, folks!)
You list shocks being different in your list but not springs. Are the springs different as well?
Appreciate 0