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Replacing suspension bushings on a BMW 320d E91 3 Touring involves several steps and tools. Below is a detailed guide with bullet points that outlines the process:
### Tools and Equipment Needed
– **Jack and Jack Stands**: To lift the vehicle securely and allow access to the suspension components.
– **Wheel Chocks**: To prevent the vehicle from rolling while lifted.
– **Lug Wrench**: For removing the wheel nuts.
– **Socket Set**: Including various sizes (typically 10mm to 19mm) for removing bolts.
– **Wrench Set**: To complement the socket set and access tight spaces.
– **Torque Wrench**: To ensure bolts are tightened to manufacturer’s specifications.
– **Pry Bar**: For leverage when removing old bushings.
– **Hammer**: To help with the removal of stubborn parts.
– **Bushing Removal Tool/Press**: A specialized tool for removing and installing bushings without damaging surrounding components.
– **Grease**: For lubricating the new bushings during installation.
– **Safety Goggles and Gloves**: For personal protection during the job.
– **Work Light**: Provides visibility in low-light conditions.
### Replacement Procedure
– **Preparation**:
– Park the vehicle on a flat surface and engage the parking brake.
– Place wheel chocks behind the rear wheels to prevent movement.
– **Lifting the Vehicle**:
– Use the jack to lift the front or rear of the vehicle, depending on which bushings you are replacing.
– Secure the vehicle with jack stands to ensure stability while working underneath.
– **Removing the Wheels**:
– Use the lug wrench to remove the wheel nuts and take off the wheels. this will provide access to the suspension components.
– **Identifying the Bushings**:
– Locate the suspension components where the bushings are situated. Common areas include control arms, subframes, and anti-roll bars.
– **Removing Old Bushings**:
– **Loosen Bolts**: Use the socket and wrench set to loosen and remove the bolts securing the bushings in place. this may involve multiple bolts on the control arms or subframe.
– **Use a Pry Bar**: If the bushing is stuck, use a pry bar to gently pry it out. Be cautious not to damage surrounding components.
– **Bushing Removal Tool**: If available, use a bushing removal tool to press out the old bushings. this tool will help avoid damage to the suspension components.
– **Preparing for New Bushings**:
– Clean the mounting surfaces where the new bushings will be installed. Remove any debris or old grease.
– Inspect the area for any signs of wear or damage that may need addressing.
– **Installing New Bushings**:
– Apply a thin layer of grease to the new bushings to facilitate installation and prevent squeaking.
– Use the bushing installation tool to press in the new bushings. Ensure they are seated properly in the mounting location.
– If a tool isn’t available, carefully tap the new bushing into place with a hammer, ensuring it is aligned correctly.
– **Reinstalling Suspension Components**:
– Position the control arm or other components back into place
and align the holes for the bolts.
– Insert and hand-tighten the bolts to hold the components in place.
– Use the torque wrench to tighten all bolts to the manufacturer’s specified torque settings.
– **Reattaching Wheels**:
– reinstall the wheels and hand-tighten the lug nuts.
– Lower the vehicle back to the ground and then torque the wheel nuts to the manufacturer’s specifications.
– **Final Checks**:
– Check the suspension components to ensure everything is securely in place.
– Take the vehicle for a short test drive to ensure everything is functioning correctly and to listen for any unusual noises.
### Safety Tips
– always wear safety goggles and gloves to protect yourself from debris and sharp objects.
– Make sure the vehicle is securely supported on jack stands before working underneath it.
– Be mindful of the torque specifications to avoid over-tightening or under-tightening bolts.
This guide provides a comprehensive overview of the tools, procedures, and safety precautions necessary for replacing suspension bushings on a BMW 320d E91 3 Touring. always refer to a repair manual specific to your vehicle for detailed specifications and torque settings.
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