INSTALLATION ASSUMPTIONS:

These instructions will assume that the installer is either familiar with the procedures for replacingstandard BMW trailing arm bushings OR has access to the applicable repair manuals and anappropriate level of experience to perform this task. Repair manuals for the above listed vehiclesare available from Bavarian Autosport. You will need to take your BMW to an alignment facilityimmediately after installation.

PROCEDURE:

1. Remove the rear wheels.

2. Disconnect the swaybar links from the trailing arms.

3. Place a floor jack under the trailing arms (one at a time). Remove the lower shock mountbolts and allow the shocks to hang free, then lower the floor jack and remove the springs.

4. Remove the trailing arm bushing mounting bolts and pull the trailing arms to the rear inorder to access the bushings. The trailing arm bushings should be accessible without remov-ing the axle shafts or disconnecting the flexible brake hose from the body to the trailing arm.If the bushings can not be reached it may be necessary to remove the brake lines, parkingbrake cables and axle shafts in order to move the trailing arms further rearward, or totallyremove them from the vehicle (which would require that the E-brake cables, pad wear sensorwire and ABS wires be disconnected).

5. Remove the original trailing arm bushings. Use a razor knife (X-Acto) to cut the rubber“mushroom” head from one end of each bushing (cut the end that you intend to pull throughthe trailing arm mounting eye, when removing the bushing). Use a puller tool to remove thebushings (Figure 1).

6. Make sure the trailing arm eyelets are clean and free of burrs. Disassemble the urethanebushing halves from the steel sleeves. Insert the urethane bushing halves into the trailingarm eyelets. The bushing halves with the wider flange go to the outside of the trailing armeyelets. The halves with the thinner flanges go to the inside (facing each other, on the twoarms of the trailing arm assembly).

SSAAFFEETTYY NNOOTTEE:: The rear of the vehicle must be raised and supported in such a way that the rear suspension is hanging free. Useproper methods and safety precautions for lifting and securely supporting the vehicle.

BAVARIAN AUTOSPORT

Rear Suspension Urethane Trailing Arm BushingsInstallation Instructions

Call Toll Free: 1.800.535.2002275 Constitution Avenue, Portsmouth, NH 03801 • 603.427.2002 • Fax 800.507.2002 • www.BavAuto.com

Page 1/2 1.07 INS374

PART NUMBERS:N62188BAV

N62187BAV

1600/2002Bavaria

2800/3.0 CS5, 6, 7 Series

thru 82

3 Series thru 91

& 92 convertibles

318tiZ3

Roadsters & Coupes

7. Lubricate the inner holes of the urethane bushing halves and the outer surfaces of the steel bushing sleeves with the sup-plied grease. Using slip-joint pliers (or other similar tool) insert the steel sleeves into the urethane halves.

8. Prep the through bolts and steel eccentric sleeves by pre-pressing the splined shoulders of the bolts into the bores of thesteel sleeves. This can be accomplished with a hydraulic press or large vise. Alternatively, a hammer can be used to drive the bolt into the sleeve. Once the bolt is seated, reverse the procedure to remove the bolt. Be careful not to damage the end of the bolt threads during installation or removal.

9. Install the trailing arms into the brackets on the crossmember. Insert the supplied bolts through the brackets and bushings and thread on the supplied lock nuts (bolt heads facing each other, toward the center of the arms). “Eyeball” the camber settings, and tighten the nuts to 50-55 ft.lb.

10. Reassemble springs, shocks, swaybars, hoses, wheels, etc.

11. It is now necessary to take your BMW to have the alignment set at the desired angle.

ADJUSTMENT TIPS:

In order to increase negative camber - Loosen the nuts on the bushing through bolts, use a wrench or socket on the bolt head to turnthe bushings. Set the bushings so that the inner leg of the trailing arm is lowered in relation to the through bolt and/or the outer leg israised in relation to the through bolt.

In order to decrease negative camber - Loosen the nuts on the bushing through bolts, use a wrench or socket on the bolt head to turnthe bushings. Set the bushings so that the inner leg of the trailing arm is raised in relation to the through bolt and/or the outer leg islowered in relation to the through bolt.

By combining the adjustability of the inner and outer bushings, you can achieve a high degree of camber tuning.

Call Toll Free: 1.800.535.2002275 Constitution Avenue, Portsmouth, NH 03801 • 603.427.2002 • Fax 800.507.2002 • www.BavAuto.com

Page 2/2 1.07 INS374

Figure 1