Part 1: Installing shocks, struts and springs on a BMW 3 series 99 thru 05 (E46)

BLOG ARTICLE: http://blog.bavauto.com/14307 "Like" us on Facebook - http://www.facebook.com/BavarianAutosport "Follow" us on Twitter - http://www.twitter.com/BavAuto "Subscribe" to us on YouTube - http://www.youtube.com/BavarianAuto Visit our online store - http://www.bavauto.com/ All of the items shown in these videos are available in our online store at http://www.bavauto.com/. Need additional tech help? Please visit our tech blog for thousands of Tech and DIY BMW and MINI articles at: http://blog.bavauto.com/ --- In Part-1 of this two part series, we will replace the front shock/strut/spring assembly. See Part-2 for the rear shock and spring replacement. The Bentley repair manuals will cover standard shock and spring replacement for the various BMW and MINI models. This DIY will assume that the DIYer has the applicable Bentley manual for additional reference as well as fastener torque values. Note that we will be installing the Bilstein PSS-10 coil-over kit. However, the procedures would be the same for any common shock/strut replacement (including installing sport springs, if desired). PARTS USED: • New shocks/struts (Bilstein, Koni, Sachs, etc.) • New sport or stock replacement springs, if desired (BMW, BavAuto, Eibach, etc.) • New Shock install kits (compression bumpers, dust shields, spring pads, etc.) • New upper strut and shock mounts • New strut & shock mount gaskets (as required) • Rear shock mount reinforcing plates TOOLS USED: • Bentley Repair Manual • BavAuto Non-Marring pry bar set * BavAuto spring compressor tool • 13mm through 18mm ½"drive socket & ratchet set with various extensions • 4mm through 8mm Allen keys or bits (for ratchet use) • 13mm through 18mm combination wrench set • Assorted flat and Phillips screwdrivers PROCEDURE: FRONT (applies directly to the E46 3-series, but others are similar): 1) Safely raise the front of car, with suspension hanging. 2) Remove the wheels. 3) Disconnect the upper end of the swaybar link from the shock/strut bracket. Note that the through-stud for the link's upper joint (as well as the lower) must be secured using a 16mm to 18mm thin open end wrench. This particular link is 16mm. 4) Remove the strut mounting pinch-bolt. The bolt goes through the strut mounting clamp on the wheel hub/spindle assembly and has a nut on the opposite side (some models do not use nuts, the bolt threads into the clamp). 5) Set the mounting bracket for the ABS sensor wire, brake pad wear sensor wire (left side only) and brake fluid hose aside. Note that other models may have these hoses mounted in a bracket that is affixed to the shock/strut housing. In these cases, remove the wires and hose from the bracket. 6) If the vehicle has adaptive headlights (self-aiming), disconnect the sensor link from the control arm or the sensor bell-crank arm. The sensors may only be present on one side of the vehicle. 7) Place a support or jack under the lower control arm to support the suspension as the upper strut mount nuts are removed. 8) Remove the three 13mm nuts that secure the upper mount to the body (strut tower), under the hood. 9) Gently lower the jack or support, from step-6, and lower the strut assembly. Pull the strut assembly up and out of the hub/spindle. A helper may need to push down on the hub/spindle as you pull the strut upward. If the clamp is too tight for the strut to pull out, use a cold-chisel or large flat-blade screwdriver as a wedge to open the clamp a bit. Tap the wedge into the split in the clamp, widening the clamp, allowing the strut to be removed. 10) Once removed from the hub/spindle clamp, remove the strut assembly from the wheel well area. 11) Install a spring compressor to the spring on the strut assembly. Compress the spring until you can tell that the spring pressure is relieved from the upper and lower spring seats. 10) Remove the upper shock/strut nut that is at the top of the assembly, in the center of the upper mount. To remove the nut, you can use the method shown in the Spring 2007 issue of our Fast Times newsletter, page-7, or you can use an impact gun. DO NOT use an impact gun for re-assembly! 11) Once the nut is removed, disassemble the upper mount, upper spring perch and washers from the shock's piston rod. Keep track of the various washers and their locations. 12) Pull the spring (and compressor) off of the shock/strut. 13) Assemble the new shock/strut and/or spring. 14) We're sorry, but the description can not be any longer (youtube requirement). Watch the video and see our tech blog for the full DIY steps at http://blog.bavauto.com/ -------- All products noted in this video can be purchased in our online store, http://www.bavauto.com/, 24 hours a day, 7 days a week. e-mail us at info@bavauto.com or call our headquarters and speak to our knowledgeable advisors at (800) 535-2002 (Mon.-Thurs. 8AM to 9PM EST, Fri. 8AM to 7PM EST, and Sat. 9AM to 4PM EST).

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Part 2: Installing shocks, struts and springs on a BMW 3 series 99 thru 05 (E46)
BLOG ARTICLE: http://blog.bavauto.com/14307 "Like" us on Facebook - http://www.facebook.com/BavarianAutosport "Follow" us on Twitter - http://www.twitter.com/BavAuto "Subscribe" to us on YouTube - http://www.youtube.com/BavarianAuto Visit our online store - http://www.bavauto.com/ All of the items shown in these videos are available in our online store at http://www.bavauto.com/. Need additional tech help? Please visit our tech blog for thousands of Tech and DIY BMW and MINI articles at: http://blog.bavauto.com/ --- In Part-2 of this two part series, we will replace the rear shock and spring. See Part- for the front shock/spring/strut replacement. The Bentley repair manuals will cover standard shock and spring replacement for the various BMW and MINI models. This DIY will assume that the DIYer has the applicable Bentley manual for additional reference as well as fastener torque values. Note that we will be installing the Bilstein PSS-10 coil-over kit. However, the procedures would be the same for any common shock/strut replacement (including installing sport springs, if desired). PARTS USED: • New shocks/struts (Bilstein, Koni, Sachs, etc.) • New sport or stock replacement springs, if desired (BMW, BavAuto, Eibach, etc.) • New Shock install kits (compression bumpers, dust shields, spring pads, etc.) • New upper strut and shock mounts • New strut & shock mount gaskets (as required) • Rear shock mount reinforcing plates TOOLS USED: • Bentley Repair Manual • BavAuto Non-Marring pry bar set • 13mm through 18mm ½"drive socket & ratchet set with various extensions • 4mm through 8mm Allen keys or bits (for ratchet use) • 13mm through 18mm combination wrench set • Assorted flat and Phillips screwdrivers PROCEDURE: REAR (applies directly to the E46 3-series, but the E36 3-series uses the same steps and procedures): 1) Safely raise the rear of car, with suspension hanging. 2) Remove the wheels. 3) Place a jack under the lower shock mount eye or the wheel hub assembly. Slightly raise the suspension (just enough to remove the downward tension on the shock). 4) Remove the lower shock mount bolt. 5) Lower the jack and allow the suspension to hang free. 6) Remove the trunk side trim panel to access the upper shock mount. 7) Remove the two 13mm nuts from the upper shock mount, at the top of the shock tower. 8) Lower the shock out of the vehicle. 9) Assemble the new shock with new compression bumper, dust tube and upper mount. Be sure to re-use the large lower and upper washers for the upper mount. These washers must cup away from the mount. lower washer cups downward and upper washer cups upward. 10) If the spring is being replaced, it can be removed BEFORE re-installing the shock. Have a helper pull downward on the wheel hub assembly and pull the spring out from between the chassis and the upper control arm. 11) Using new upper and lower spring pads, install the new spring in the same manner as the original was removed. Install the new spring pads, then install the spring. 12) Install the new shock. Place a new shock mount gasket on the shock mount and insert the assembly up into the shock tower. If installing a shock mount reinforcement plate, place the plate over the two shock mount studs, on top of the shock tower, before installing the two nuts. Install the two nuts. Install the trunk trim panel. 13) Install the lower shock mount bolt. Be sure to install the washer on the bolt before installing the bolt. Use the jack to raise the suspension assembly to align the lower shock mount with the hub mounting point, so the bolt can be inserted and threaded. Tighten the bolt. 14) Repeat for the other side. -------- All products noted in this video can be purchased in our online store, http://www.bavauto.com/, 24 hours a day, 7 days a week. You are also welcome to e-mail us at info@bavauto.com or call into our headquarters and speak to our knowledgeable advisors at (800) 535-2002 (Mon.-Thurs. 8AM to 9PM EST, Fri. 8AM to 7PM EST, and Sat. 9AM to 4PM EST).





How to use a spring compressor on a BMW or MINI strut assembly
BLOG ARTICLE: http://blog.bavauto.com/14362 "Like" us on Facebook - http://www.facebook.com/BavarianAutosport "Follow" us on Twitter - http://www.twitter.com/BavAuto "Subscribe" to us on YouTube - http://www.youtube.com/BavarianAuto Visit our online store - http://www.bavauto.com/ All of the items shown in these videos are available in our online store at http://www.bavauto.com/. Need additional tech help? Please visit our tech blog for thousands of Tech and DIY BMW and MINI articles at: http://blog.bavauto.com/ --- This DIY video will show you how to properly use a spring compressor tool to disassemble a front strut assembly or a rear coil-over shock and spring assembly that would commonly be used on MINIs and BMWs. We need to perform the spring compression when replacing shocks, struts or springs on the front of all BMWs and MINIS as well as the rear on most 5, 6, 7, 8, Z and X models and some 3-series models that have the spring mounted over the shock (coil-over). We will be working with a front strut assembly (shock and spring) from a 2004 325ci E46 3-series. The exact procedure, as shown, would be applicable to all E46 models (3-series 99-05 - 323i. 323ci. 325i. 325ci. 325xi. 328i. 328ci. 330i, 330ci, 330xi, M3). However, the general procedure can be applied to all BMW or MINI front strut assemblies. This general procedure can also be applied to the rear coil-over type shock and spring assemblies, as noted above. We will be using the BavAuto universal spring compressor tool. Use this video in conjunction with our various DIYs and how-to videos on shock, strut and spring replacement for various BMW and MINI chassis and models. PARTS USED: • New shocks/struts (Bilstein, Koni, Sachs, etc.) • New Shock install kits (compression bumpers, dust shields, spring pads, etc.) • New upper strut and shock mounts TOOLS USED: • Bentley Repair Manual * BavAuto spring compressor tool • 13mm through 18mm ½"drive socket & ratchet set with various extensions • 4mm through 8mm Allen keys or bits (for ratchet use) • 13mm through 18mm combination wrench set • Assorted flat and Phillips screwdrivers PROCEDURE: 1) Remove the front strut assembly from the vehicle, using the applicable Bentley repair manual, BavAuto DIY instructions or BavAuto how-to video. 2) Determine which spring jaws are appropriate for the application. Assemble the jaws to the tool. Here, we have used the large jaws. 3) Assemble the spring compressor tool to the strut/spring assembly. It is preferable to attach the upper and lower jaws to the spring coils. However, if the coils that can be used do not allow enough compression for disassembly, the upper jaw can be affixed to the upper spring perch. In either case, BE SURE that the lock tangs on the jaws are securely wrapped around the coil or the spring perch. If this cannot be achieved, DO NOT attempt to compress the spring. 4) Use a socket and ratchet on the tool's screw rack to compress the spring. Compress the spring until it is loose between the spring perches. 5) Remove the upper shock mount nut. 6) Remove the upper mount and note any washers that are in place on the shock shaft, for future use. 7) If the spring plate was not used for the upper jaw of the compressor, remove the spring plate. At this point the shock can also be removed from the spring. 8) If the upper spring perch was used for the seating of the upper compressor jaw, decompress the spring by "unwinding" the compressor's screw rack. 9) Install a new upper rubber spring seat to the upper perch and a new lower rubber spring seat to the new shock's lower spring perch. 10) install a new compression bumper and dust protection tube to the new shock. 11) Assemble the upper perch, spring and new shock, by compressing the spring in the same manner as was used for disassembly. 12) Install the new upper mount along with any washers that were removed when disassembled. 13) Install the upper nut, using the same tools as were used for removal (to hold the shock shaft and tighten the nut). DO NOT USE AN AIR GUN to tighten the upper nut. 14) Slowly detension the compressor tool while aligning the upper and lower spring ends with the spring seats and perches. 15) When fully detensioned, remove the spring compressor tool. 16) The strut or rear coil-over assembly is now ready to install into the vehicle. -------- All products noted in this video can be purchased in our online store, http://www.bavauto.com/, 24 hours a day, 7 days a week. You are also welcome to e-mail us at info@bavauto.com or call into our headquarters and speak to our knowledgeable advisors at (800) 535-2002 (Mon.-Thurs. 8AM to 9PM EST, Fri. 8AM to 7PM EST, and Sat. 9AM to 4PM EST).





Part 1: Installing shocks and struts on a BMW 3 series 06 thru 12 (E90, E91, E92, E93)
BLOG ARTICLE: http://blog.bavauto.com/14344 "Like" us on Facebook - http://www.facebook.com/BavarianAutosport "Follow" us on Twitter - http://www.twitter.com/BavAuto "Subscribe" to us on YouTube - http://www.youtube.com/BavarianAuto Visit our online store - http://www.bavauto.com/ All of the items shown in these videos are available in our online store at http://www.bavauto.com/. Need additional tech help? Please visit our tech blog for thousands of Tech and DIY BMW and MINI articles at: http://blog.bavauto.com/ --- In Part-1 of this two part series, we will replace the front shock (strut) assembly on a typical BMW E90, E91, E92 and E93 3-series chassis (06-12). See Part-2 for the rear shock replacement. The Bentley repair manuals will cover standard shock and spring replacement for the various BMW and MINI models. This DIY will assume that the DIYer has the applicable Bentley manual for additional reference as well as fastener torque values. Note that we will be installing the Koni Sport shocks. However, the procedures would be the same for any common shock/strut replacement. PARTS USED: • New shocks/struts (Bilstein, Koni, Sachs, etc.) • New Shock install kits (compression bumpers, dust shields, spring pads, etc.) • New upper strut and shock mounts • New strut & shock mount gaskets (as required) • Rear shock mount reinforcing plates TOOLS USED: • Bentley Repair Manual * BavAuto spring compressor tool • BavAuto Non-Marring pry bar set • 13mm through 18mm ½"drive socket & ratchet set with various extensions • 4mm through 8mm Allen keys or bits (for ratchet use) • 13mm through 18mm combination wrench set • Assorted flat and Phillips screwdrivers PROCEDURE: FRONT (applies directly to the E90/91/92/93 3-series, but other late model BMWs are similar): 1) Safely raise the front of car, with suspension hanging. 2) Remove the wheels. 3) Disconnect the upper end of the swaybar link from the shock/strut bracket. Note that the through-stud for the link's upper joint (as well as the lower) must be secured using a 16mm to 18mm thin open end wrench. 4) Remove the inner fender liner (in order to access the forward control arm bushing through-bolt. 5) Loosen the forward control arm through-bolt. Do not remove the bolt. 6) Loosen the rearward control arm bushing through-bolt and nut. Do not remove the bolt and nut. 7) Remove the strut mounting pinch-bolt. The bolt goes through the strut mounting clamp on the wheel hub/spindle assembly and has a nut on the opposite side (some models do not use nuts; the bolt threads into the clamp). 8) Set the mounting bracket for the ABS sensor wire, brake pad wear sensor wire (left side only) and brake fluid hose aside. 9) Disconnect the wires and hose from the chassis bracket and the chassis wiring harness plugs, inside the connector box. 10) If the vehicle has adaptive headlights (self-aiming), disconnect the sensor link from the control arm or the sensor bell-crank arm. The sensors may only be present on one side of the vehicle. 11) Dismount the brake calipr from the caliper mounting bracket, remove the caliper and hang it inside the wheel well area using a wire or stretch cord. 12) Place a support or jack under the lower control arm to support the suspension as the upper strut mount nuts are removed. 13) Remove the three 13mm nuts that secure the upper mount to the body (strut tower), under the hood. 14) Gently lower the jack or support, from step-12, and lower the strut assembly. Pull the strut assembly up and out of the hub/spindle. A helper may need to push down on the hub/spindle as you pull the strut upward. If the clamp is too tight for the strut to pull out, use a cold-chisel or large flat-blade screwdriver as a wedge to open the clamp a bit. Tap the wedge into the split in the clamp (from the top). This will widen the clamp and allow the strut to be removed. 15) Once removed from the hub/spindle clamp, remove the strut assembly from the wheel well area. 16) Install a spring compressor to the spring on the strut assembly. Compress the spring until you can tell that the spring pressure is relieved from the upper and lower spring seats. 17) We're sorry, but the description can not be any longer (youtube requirement). Watch the video and see our tech blog for the full DIY steps at http://blog.bavauto.com/ -------- All products noted in this video can be purchased in our online store, http://www.bavauto.com/, 24 hours a day, 7 days a week. You are also welcome to e-mail us at info@bavauto.com or call into our headquarters and speak to our knowledgeable advisors at (800) 535-2002 (Mon.-Thurs. 8AM to 9PM EST, Fri. 8AM to 7PM EST, and Sat. 9AM to 4PM EST).





Part 2: Installing shocks and struts on a BMW 3 series 06 thru 12 (E90, E91, E92, E93)
BLOG ARTICLE: http://blog.bavauto.com/14344 "Like" us on Facebook - http://www.facebook.com/BavarianAutosport "Follow" us on Twitter - http://www.twitter.com/BavAuto "Subscribe" to us on YouTube - http://www.youtube.com/BavarianAuto Visit our online store - http://www.bavauto.com/ All of the items shown in these videos are available in our online store at http://www.bavauto.com/. Need additional tech help? Please visit our tech blog for thousands of Tech and DIY BMW and MINI articles at: http://blog.bavauto.com/ --- In Part-2 of this two part series, we will replace the rear shocks on a typical BMW E90, E91, E92 and E93 3-series chassis (06-12). See Part-1 for the front shock/strut assembly replacement. The Bentley repair manuals will cover standard shock and spring replacement for the various BMW and MINI models. This DIY will assume that the DIYer has the applicable Bentley manual for additional reference as well as fastener torque values. Note that we will be installing the Koni Sport shocks. However, the procedures would be the same for any common shock/strut replacement. PARTS USED: • New shocks/struts (Bilstein, Koni, Sachs, etc.) • New Shock install kits (compression bumpers, dust shields, spring pads, etc.) • New upper strut and shock mounts • New strut & shock mount gaskets (as required) • Rear shock mount reinforcing plates TOOLS USED: • Bentley Repair Manual * BavAuto spring compressor tool • BavAuto Non-Marring pry bar set • 13mm through 18mm ½"drive socket & ratchet set with various extensions • 4mm through 8mm Allen keys or bits (for ratchet use) • 13mm through 18mm combination wrench set • Assorted flat and Phillips screwdrivers PROCEDURE: REAR (applies directly to the E90/91/92/93 3-series) 1) Safely raise the rear of car, with suspension hanging. 2) Remove the wheels. 3) Remove the lower shock mount nut. Hold the shock body with an open end wrench to prevent it from turning. 4) Remove the trunk side trim panel. We found that we could simply remove the fasteners on the forward half of the panel and fold it rearward (via the access through the fold-down rear seats). 5) Remove the upper shock mount access cover, 6) Hold the shock shaft with a6mm socket or wrench and loosen the shock mount nut. Remove the nut and attached bushing. 7) From under the car, compress the shock by pulling down on the upper section. Pull the shock out of the mounting hole in the shock tower and remove the shock from the suspension area. 8) Install the new compression bumper and dust tube on the new shock, along with the new lower half of the upper mounting bushing assembly. 9) Install the new shock assembly into the lower control arm and the upper shock tower mount area. Compress the shock to install, as in step #7. 10) Install the lower bushing nut. 11) Install the upper nut and bushing. 12) Install the shock mount rubber cover. 13) Install the trim panel. 14) Repeat for the other side. -------- All products noted in this video can be purchased in our online store, http://www.bavauto.com/, 24 hours a day, 7 days a week. You are also welcome to e-mail us at info@bavauto.com or call into our headquarters and speak to our knowledgeable advisors at (800) 535-2002 (Mon.-Thurs. 8AM to 9PM EST, Fri. 8AM to 7PM EST, and Sat. 9AM to 4PM EST).




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