Repairing the shock mounts on a BMW 518i involves several steps and requires specific tools and components. click here for more details on the download manual…..
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Here’s a detailed description of the process:
### Components Needed:
1. **New shock Mounts**: Ensure you have the correct shock mounts for your BMW 518i. These can be purchased from BMW dealers, auto parts stores, or online retailers.
2. **Shock absorbers (if necessary)**: If the shock absorbers are worn, consider replacing them while you have everything disassembled.
3. **Rubber Bushings**: These may need to be replaced if they are worn or damaged.
4. **Hardware**: New bolts and nuts may be necessary, especially if the old ones are rusted or stripped.
5. **Tools**:
– Socket set (including a ratchet and extensions)
– Wrenches (metric sizes)
– torque wrench
– Screwdrivers (flathead and Phillips)
– Pliers
– Jack and jack stands
– Hammer (rubber mallet preferred)
– Pry bar (optional)
– Spring compressor (if removing the coil springs)
### Procedure:
#### 1. Safety First
– Park the vehicle on a flat surface and engage the parking brake.
– Wear safety gloves and goggles.
#### 2. Lift the Vehicle
– Use a jack to raise the front or rear of the car (depending on which shock mounts you’re replacing).
– Secure the vehicle with jack stands to ensure it doesn’t fall while you work.
#### 3. Remove the Wheel
– Use a lug wrench to loosen and remove the lug nuts.
– Take off the wheel to access the suspension components.
#### 4. Remove the shock Absorber
– Locate the shock absorber. It will be mounted to the lower control arm and the upper mount at the top.
– At the bottom, unbolt the shock from the control arm. This usually requires a socket or wrench.
– At the top, you might need to access the shock mount from inside the trunk or under the rear seat, depending on whether it’s front or rear. Remove any covers or insulation to gain access.
– Remove the nuts securing the shock to the upper mount. You might need to hold the shock shaft with a wrench to prevent it from spinning while loosening the nut.
#### 5. Remove the Old shock Mount
– Once the shock is removed, you can access the shock mount. It is usually bolted to the body of the car.
– Remove the bolts holding the shock mount in place. Use a socket or wrench for this.
– Once the bolts are removed, take out the old shock mount. If it’s stuck, you may need to gently tap it with a rubber mallet or use a pry bar.
#### 6. Install the New shock Mount
– Take the new shock mount and position it where the old one was installed.
– Secure it with the bolts you removed earlier. Make sure to tighten them to the manufacturer’s specified torque settings (consult a repair manual for the exact torque specifications).
#### 7. Reinstall the shock Absorber
– Position the shock absorber back into place. Start by securing it at the bottom to the control arm.
– Then, move to the top and install the shock into the new mount. Secure it with the nuts, again ensuring they are torqued to the proper specifications.
#### 8. Reinstall the Wheel
– Place the wheel back onto the hub and hand-tighten the lug nuts.
– Lower the vehicle back to the ground and then use a torque wrench to tighten the lug nuts to the manufacturer’s specifications.
#### 9. Repeat for the other Side (if necessary)
– If you are replacing shock mounts on both sides, repeat the steps for the other side of the vehicle.
#### 10. test Drive
– Once everything is reassembled, take the vehicle for a short test drive to ensure everything is functioning correctly. Listen for any unusual noises that may indicate a problem.
### Final Checks:
– After the test drive, check the torque on the shock mount bolts and lug nuts again to ensure they are secure.
By following these steps, you should be able to successfully repair the shock mounts on your BMW 518i. Always consult specific repair manuals for your vehicle for precise specifications and additional details.
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