31 33 100 Replacing front left or right coil spring (M6)

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Special tools required:

IMPORTANT: Both coil springs on the relevant axle must be replaced only in the event of corrosion breakage!

WARNING: Prior to each use of special tool 31 3 340 , it is essential to read the associated Owner's Handbook fully!
All the safety precautions and instructions contained in the Owner's Handbook must be strictly observed!
Failure to observe these safety precautions and instructions increases the risk of serious physical injury, damage to your health and damage to property and equipment!

IMPORTANT:

Use special tool approved by BMW only!
Prior to each use, check the special tools for defects, modifications and operational reliability.
Damaged/modified special tools must not be used!
No changes or modifications may be made to the special tools!
These special tools are intended solely for the purpose of tightening and relieving cylindrical and tapered suspension springs.
Keep special tools dry, clean and (down to the spindle) free from grease.
Impact screwdrivers are prohibited!
Do not compress coil spring to full extent.

Installation note:

All screws, nuts, bolts and hose clamps removed during the repair must be replaced.
Retaining elements on chassis and suspension and steering parts must be replaced.

Necessary preliminary tasks:

Remove front spring strut. See 37 11 032 REPLACING FRONT LEFT OR RIGHT SPRING STRUT (M6) .

Relieve tension on coil spring and remove from special tools 2 318 833.

Fig 1: Identifying Coil Spring

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: To be able to align the support bearing to the spring-strut bore when assembling the spring strut (see Fig 2), the spring in the spring tensioner must be positioned correctly!

The spring coil with the largest diameter must be positioned against the support bearing
The upper coil spring end must be in contact with the limit position of the spring pad!

Fig 2: Assembling Spring Strut
Courtesy of BMW OF NORTH AMERICA, INC.
Position spring with mounted support bearing and gauge 2 210 780 in spring tensioner so that marks (1) are positioned vertically towards top
Position the gauge on the support bearing:

Right support bearing:

Position mark "RIGHT B" on arrow at support bearing

Left support bearing:

Position mark "LEFT" on arrow at support bearing

Refer to front spring strut. See 37 11 032 REPLACING FRONT LEFT OR RIGHT SPRING STRUT (M6) .

WARNING: Do not compress coil spring to full extent.
Coils of coil spring must be located completely in recesses of special tools 2 318 833!

Tension coil spring.

Fig 3: Identifying Coil Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Further assembly:

See 37 11 032 REPLACING FRONT LEFT OR RIGHT SPRING STRUT (M6)

After installation:

Check HEADLIGHT ADJUSTMENT , correct if necessary.