The information presented below is an invaluable reference to the restorer, engineer, or racer. Let me also issue a quick disclaimer, with regards to copyright infringement; the Official BMW 2002 Repair Manual is long out of print, and no longer available from BMW. Since the manual is out of print, putting this excerpt up for public consumption won't detract from profits, etc. Therefore, until directed otherwise, this section will be displayed for your use. Of course, the information contained herein should be used at your own risk, and I cannot guarantee that it is all correct. (though I have done my best to proofread against errors, etc.)

'02 SERIES SPECIFICATIONS for COIL SPRINGS

The information below was extracted from Sections 31 & 33 [Front Axle & Rear Axle] of the BMW 1502/1602/1802/2002 Repair Manual [Bestell-Nr. 01 51 9 699 551 (10.73 version)

Permissible axial spring-guide joint movement at ball joint (max. wear limit reached) = 1.4 mm

Length of Coil Spring Relaxed

Axle	(mm)	(inch)
Front	337.2	13.28
Rear	334.6	13.17
*Baur convertible rear is 362 mm

Front Coil Spring Rating

Color Codes	(N)	(kp)	(lb)
green/blue	2835 ... 2923	289 ... 298	635.8 ... 656.6
white/blue	2737 ... 2835	279 ... 289	614.8 ... 636.8
red/blue	2649 ... 2737	270 ... 279	585 ... 614.8

Rear Coil Spring Rating

Color Codes	(N)	(kp)	(lb)
green	3453 ... 3571	352 ... 364	776 ... 803
white	3335 ... 3453	340 ... 352	750 ... 776
red/blue	3227 ... 3335	329 ... 340	725 ... 750
*Baur convertible rear spring rates are 1% less

Length of front auxilliary spring (bump stop) = 85 mm

Rear Lower Coil Spring Damper ring height = 24 mm

Length of hollow rubber spring (rear) = 80 mm

Stabilizers (anti-roll bars) diameter Front = 19 mm Rear = 16 mm

[REMARKS in] Specifications:

Rear Coil Spring ratings: * For touring models, ['fastback' body configuration] use only 'red' rating (in an emergency, 'white' is also permissible)

Rear Upper Coil Spring Damper: * Always use damper ring with one spot for touring models [2 mentions Baur specs; 4 mentions sway bars adaptable to 1502 etc.]

IMPORTANT

The manual [31 33 101 Replacement of coil spring] lists an important message:

Always replace coil springs in pairs. Note correct length of spring, color code and diameter. When converting to heavy-duty specification, note remarks in specifications.