Table of Contents
Upgrading your BMW M240i with H&R Springs is a fantastic way to enhance performance, improve handling, and achieve a more aggressive stance. This guide will walk you through the installation process step-by-step, ensuring you get the most out of your performance upgrade.
Tools and Materials Needed
Before you begin, gather the necessary tools and materials to streamline the installation process. Here’s what you’ll need:
- H&R Springs kit
- Jack and jack stands
- Socket set
- Wrench set
- Torque wrench
- Pry bar
- Spring compressor
- Safety glasses
- Gloves
Preparation
Preparation is key to a successful installation. Follow these steps to ensure a smooth process:
- Park your BMW M240i on a flat surface.
- Engage the parking brake and place wheel chocks behind the rear wheels.
- Gather all tools and materials near your workspace.
Removing the Stock Springs
Start by removing the stock springs to make way for the H&R Springs. Follow these steps:
Front Suspension
1. Loosen the lug nuts on the front wheels and lift the car using a jack.
2. Secure the car on jack stands for safety.
3. Remove the front wheels.
4. Disconnect the sway bar link from the strut.
5. Remove the bolts securing the strut to the steering knuckle.
6. Detach the strut from the vehicle by removing the top mount bolts located under the hood.
7. Use a spring compressor to safely compress the stock spring before removing it from the strut assembly.
8. Remove the stock spring and retainers from the strut.
Rear Suspension
1. With the rear wheels removed, locate the rear shock absorber.
2. Remove the bottom bolt of the shock absorber and detach it from the lower control arm.
3. Remove the upper bolts securing the shock to the chassis.
4. Lower the rear subframe slightly to gain access to the rear springs.
5. Remove the stock rear springs from their seats.
Installing H&R Springs
Now that the stock springs are removed, it’s time to install the H&R Springs. Follow these steps for both the front and rear:
Front Installation
1. Place the H&R spring onto the strut assembly.
2. Use the spring compressor to compress the spring if necessary.
3. Reattach the strut assembly to the vehicle, securing it with the top mount bolts.
4. Reconnect the strut to the steering knuckle and secure it with the bolts.
5. Reattach the sway bar link to the strut.
6. Repeat this process for the other side.
Rear Installation
1. Position the H&R rear springs into their respective seats.
2. Reattach the shock absorber to the chassis and lower control arm.
3. Ensure that the shock is securely fastened with the upper and lower bolts.
4. Raise the rear subframe back into position if it was lowered.
5. Repeat this process for the other side.
Final Steps
With the new springs installed, it’s time to finalize the installation:
- Reinstall the wheels and hand-tighten the lug nuts.
- Lower the vehicle to the ground and torque the lug nuts to the manufacturer’s specifications.
- Check the suspension components for proper alignment and clearance.
- Take the car for a test drive to ensure everything functions correctly.
Conclusion
Installing H&R Springs on your BMW M240i is a rewarding process that enhances both performance and aesthetics. By following these steps carefully, you can achieve a successful installation and enjoy the benefits of improved handling and a more aggressive look.