BMW Mechanical DIYs


Supercharger Installation

E39 Suspension Survey

540i/6 (1998) OEM Sport OEM Sport 14-1/8 13-7/8 13-5/8 13-1/2 540sport 540i/6 (1997) OEM Sport OEM Sport 14-1/8 14-1/4 13-7/8 13-7/8 rayko 540i/6 (1999) OEM Sport OEM Sport 14-1/4 14-1/4 13-3/4 13-1/2 JeremyV 540iA (2000) OEM Sport OEM Sport 14-1/2 14-1/2 14-1/2 14-1/2 Griffman 540i/6 (2002) OEM Sport OEM Sport 14-1/2 14-1/2 13-3/4 13-3/4 Malachi 540i/6 (1998) OEM Sport OEM Sport 14 14 13-3/4 13-3/4 DSPTurtle 6-Cylinder (528i/530i) Car Info Spring Info Shock/Strut Info Measurements Miscellanous Model (Year) Manuf Model Manuf Model LF RF LR RR Owner Notes 528i (2000) H&R Sport/sport Bilstein Sport 13-1/4 13 13-3/8 13-1/8 DSC Eibach Pro-Kit rear springs 528i (1998) H&R Sport/sport Bilstein Sport 13-3/8 13-1/2 13-1/2 13-1/2 Dean 530iA (2001) OEM Sport OEM Sport 14-1/2 14-1/2 14 14 1RADBMR 530i (2003) OEM Sport OEM Sport 14-1/2 14-1/2 14-1/2 14-1/2 Zack G. 528iA (1999) OEM Sport OEM Sport 14-1/4 14-1/4 13-1/4 13-1/4 Griffman 528i/5 (1998) OEM Sport OEM Sport 14-11/16 14-5/16 13-11/16 13-11/16 TomS 1.5K mi 528iA (1999) OEM Non-Sport OEM Non-Sport 15-3/16 15 14-7/16 14-3/8 TomM 528i/5 (1998) OEM Non-Sport OEM Non-Sport 15-1/2 15-5/8 15-1/8 14-5/8 TomS 82K mi Touring (520iT/528iT/540iT) Car Info Spring Info Shock/Strut Info Measurements Miscellanous Model (Year) Manuf Model Manuf Model LF RF LR RR Owner Notes 540iT (1999) BavAuto Bilstein Sport 13-1/4 13-1/8 13-3/4 13-1/2 Bob/99/540iT OEM Boge Sport rear shocks 540iT (2000) Dinan Stage 1 Dinan Stage 1 13-1/8 13-1/8 13-1/4 13-1/4 rch540it OEM Boge Sport rear shocks 528iT (1998) H&R Sport/touring Bilstein Sport 14-1/8 14-1/8 14-1/8 14-1/8 tsaros Euro-only(?) H&R P/N 29791-2 528iT (1998) OEM Non-Sport OEM Non-Sport 15-1/3 14-7/8 15-1/3 14-7/8 tsaros 520iAT (2002) Eibach Pro-Kit OEM Non-Sport 13-3/4 14-3/16 14-3/16 14-3/16 Patrick
E39 540i Sedan Koni/Bilstein Comparison (Unofficial)

Koni Sport
Adjustable
Bilstein Sport
Front Strut
Full Body Length
15-12/32 15-15/32
Front Strut
Perch Mount Stop
To Clamping Spot
(very approximate)
10 10-11/16
Rear Shock
Full Body Length
15-9/16 15-12/16
Rear Shock
Bottom Of Perch
To Middle Of Mounting hole
11-3/16 10-15/16
Koni perch setting differential = 5/8″. Bottom/lower setting is highly recommended.

Again, take the numbers above with a grain of salt since your results might be completely different. If you have detailed questions for a particular owner, you can try to catch them on either Bimmerfest or Roadfly. Posting your suspension-related questions and comments there is a good idea as well since it benefits the BMW community.

Prepared by VietSB

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UUC Short Shifter Install

Front Wheel Bearing Replacement

Front Swaybar Upgrade

Front Big Brake Kit Installation

Bedding In New Pads And Rotors

Rear Big Brake Kit Installation

Installing SuperSprint Exhaust

ECU Removal Instructions