How to Change 2013 BMW 335i Strut Mount?

In this DIY guide we’ll walk you through the process of replacing the strut mounts on a 2013 BMW 335i. We’ll cover everything from tools to step by step instructions so you can do this repair yourself. Our goal is to help you improve your BMW’s performance and safety on the road.

Before we start, please note that working on your suspension requires proper tools and safety precautions. If you’re ready to get your BMW’s ride quality back on track this guide has everything you need to know.

What is a Strut Mount?

A strut mount connects the suspension strut to the body of the car, absorbs shock and provides stability. It keeps your BMW 335i smooth by allowing movement while keeping the suspension in place. Strut mounts have a rubber component to reduce vibrations and a bearing to allow for steering rotation. They’re for comfort and control

Common Signs of a Worn Strut Mount:

Worn-out strut mounts show clear signs that tell you it’s time to replace. Common symptoms are

• Clunking or knocking noises when driving over bumps or rough roads.
• Uneven tire wear, one side faster than the other, indicating alignment issues.
• Rough ride with less stability, especially when steering or braking.

These symptoms mean a compromised mount that can affect your BMW’s handling and safety.

OEM vs. Aftermarket Parts

When choosing replacement parts the decision between Original Equipment Manufacturer (OEM) and aftermarket parts is key. OEM parts are designed for BMW vehicles so they fit and align with BMW’s performance specs. They offer:

• Consistency and durability since they match the original specs.
• Better alignment and stability which means a smoother ride for your BMW.
• Longer life expectancy, less replacements.

Aftermarket parts may be cheaper but OEM parts are the better investment for quality, longevity and your vehicle’s performance.

What Tools and Parts are Required for Changing the Strut Mount

To do this replacement you’ll need OEM parts for the 2013 BMW 335i. Below are the parts:

• 2013 BMW 335i Strut Mount: OEM part number 31336788776
• Rubber Bushings: OEM bushings absorb shock and improve ride quality.
• Mounting Bolts: These hold the strut mount in place and may need to be replaced during reassembly.

Using OEM parts means durability and alignment with BMW’s specs so you get reliability and performance.

Tools Needed

Having the right tools makes the process smoother and safer. Here’s what you’ll need:

• Jack Stands: For support while the vehicle is lifted.
• Socket Set: Various sizes to remove and install bolts.
• Torque Wrench: To tighten bolts to manufacturer specs.
• Spring Compressor: To compress the strut spring safely during removal and installation.

Each tool has a job and using the right ones reduces risk and ensures accuracy.

Safety Gear

Safety should always be your first priority. Equip yourself with:

• Safety Glasses: Protects your eyes from debris or rust particles.
• Mechanic Gloves: Grip and protects your hands from sharp edges or hot surfaces.
• Protective Clothing: Protects your clothes and reduces skin exposure.

When working with suspension parts you’re dealing with high tension parts so these safety measures are a must for a safe DIY repair.

Know the Preparation Steps Before You Begin:

Before you begin the strut mount replacement make sure you set up your workspace and secure your 2013 BMW 335i. Proper positioning, wheel removal and access to the strut assembly are key to safety and efficiency. This guide will walk you through each step of preparation so you have a solid foundation for a DIY repair.

1. Vehicle Positioning

The first step to replacing a strut mount is to position your 2013 BMW 335i. This will be for safety and access to the strut assembly.

• Level Surface: Make sure the car is on a flat surface, preferably in a well lit area.
• Engage Parking Brake: This will keep the car stable while you work.
• Jack Stands: Lift the car with a jack and position jack stands under solid points so it’s stable.

You must be stable; make sure the car is stable before moving on.

2. Wheel Removal

To access the strut mount remove the wheel without damaging any parts.

• Loosen Lug Nuts: Use a wrench to break the lug nuts loose while the tire is still on the ground.
• Lift the Car and Remove the Wheel: Once the car is raised remove the lug nuts completely and set the wheel aside.

Be careful not to scratch the wheel hub when handling lug nuts and wheel.

3. Accessing the Strut Assembly

With the wheel off you’ll now work to expose the strut assembly.

• Remove Wheel Arch Lining: Remove any clips or screws holding the lining in place to get a clear view.
• Locate Strut Top Bolts: These bolts are usually at the top of the wheel well where the strut mounts to the frame.

These steps will give you a clear path to the strut assembly for the strut mount replacement.

How to Replace Strut Mount on 2013 BMW 335i, Step-By-Step Guide:-

Follow these steps to replace the Strut Mount on your 2013 BMW 335i:-

Step 1: Loosen the Strut Top Mount Bolts

Loosen the top mount bolts on the strut slightly. This will release the tension but not allow the strut to come out immediately. A 13mm or 14mm socket is usually needed for this step. Do not remove the bolts completely at this point to keep the strut in place.

Step 2: Remove the Strut Assembly

Once the top bolts are loose, remove the strut assembly from the wheel well. First remove the lower bolts on the strut that’s connected to the knuckle. Be careful during this process not to damage any surrounding parts. Lower the strut slowly to prevent any sudden movement.

Step 3: Disassemble the Strut to Access the Mount

To access the strut mount disassemble the strut by releasing the coil spring. A spring compressor tool is required for this step to compress the spring safely. This is a critical step as improper handling of the spring can cause injury. Once the spring is compressed remove the old mount from the strut.

Step 4: Replace the Strut Mount with an OEM Part

Place the new OEM strut mount over the strut assembly making sure it’s aligned with the top of the strut. Double check the fit and alignment as this will ensure the longevity and stability of your repair. Tighten the mount carefully according to BMW specs for your model.

Step 5: Reassemble the Strut and Reinstall

Now that the new mount is in place decompress the spring slowly and reassemble the strut components. Reinstall the strut assembly back into the wheel well and connect it to the knuckle. Tighten all bolts according to BMW specs which is usually between 41-47 ft-lbs for the top mount bolts.

Step 6: Secure Everything and Lower the Vehicle

Once everything is tightened, lower the car slowly. Check everything one more time to make sure everything is in place. Test the suspension by applying slight pressure to the car to make sure it’s steady and firm.

This step by step guide has given you all the steps to replace the strut mount on your BMW 335i and have a stable ride and better control of the car.

Follow Some Post-Installation Checks:

After replacing the strut mount on your BMW 335i post installation checks are a must to confirm the repair is successful and safe. These checks will check the alignment, handling and any issues that needs further attention.

Inspect for Proper Alignment

Checking the alignment of your BMW after strut mount replacement is important. Misalignment can affect handling, tire wear and ride comfort. Look for any signs of uneven wheel positioning or unusual tire wear. A professional alignment service is recommended after any suspension work to make sure everything is balanced.

Test Drive Tips

Take the car for a test drive on different road conditions. Start on a smooth road then gradually go to small bumps or uneven surfaces. Listen for any noises and feel for any vibrations. These will help you verify that all parts are secure and functioning as expected without putting stress to other components.

Signs of a Successful Replacement

After replacing the strut mount, certain symptoms should improve or disappear:

• No Clunking Sounds: The clunking or knocking noise should be gone.
• Better Handling: Steering should feel more solid.
• Less Vibration: The car should ride smooth on rough roads.

These post installation checks means your BMW 335i is road ready and ready to drive safely.

Expert Tips and Common Pitfalls:

Replacing a strut mount on your BMW 335i is doable but even experienced DIYers can make common mistakes. This section will give you expert advice to avoid the pitfalls and make your repair efficient and successful. We’ll cover common errors, pro tips for an easier process and maintenance recommendations to keep your BMW in top shape.

Common DIY Mistakes to Avoid

Avoiding common mistakes can save time and prevent costly issues:

• Overtightening Bolts: Over tightening can strip threads or damage parts. Always use a torque wrench to apply the correct torque.
• Misaligned Strut: Proper alignment is key. If the strut is not in the right position it can cause uneven wear and handling issues.
• Skipping Lubrication: Lack of lubrication on bolts can make removal difficult and can strip. Use penetrating oil on stubborn bolts for easy removal.

Pro Tips for Smooth Installation

Remember these expert tips:

• Anti-Seize Compound: Apply a little on bolts before installation so future removals will be easier and won’t rust.
• Mark Alignment Points: Before removing the strut, mark the alignment points on nearby parts. This will help you reassemble accurately.
• Double Check Fitment: Make sure all parts, especially the strut mount, fit OEM spec for BMW 335i.

Recommended Maintenance Schedule

Keep your suspension components in shape and you’ll have a smooth ride and be safer:

• Strut Mount Inspection: Inspect strut mounts every 15,000 to 20,000 miles if you drive on rough roads.
• Replace Worn Parts: Check bushings, springs and other suspension parts and replace worn out parts.
• Regular Alignment Checks: Regular alignment checks will ensure even tire wear and handling.

With these tips you’ll avoid common mistakes and have a smoother and safer ride with your BMW 335i. Follow this guide and your DIY project will be a success and add reliability to your suspension system.

End Thought:

Replacing the worn out 2013 BMW 335i strut mount on your BMW will give you many benefits from better handling to a smoother and quieter ride. Using OEM parts ensures compatibility and meets the performance and safety standards that BMW is known for. A well maintained suspension system is key to your car’s reliability and adds value to your vehicle.

For DIYers looking for accuracy the OEM Service Manual is a must have. This guide has step by step instructions specific to your BMW to avoid mistakes and make repairs easier.