How Do You Replace A Strut Mount?
If you’re an experienced home mechanic, you might be tempted to tackle this job yourself to save on labour costs. However, this is one job where extreme caution is required.
Replacing a strut mount is a complex and potentially dangerous job that should only be attempted by professionals or highly experienced DIYers. The process requires a specialist spring compressor tool, and improper use can lead to serious injury.
The danger lies in the coil spring. It is compressed under thousands of pounds of force. If that energy is released uncontrollably, the spring can fly off with lethal force.
General Steps (Professional Overview):
- Raise Vehicle & Remove Wheel: Safely lift the car and secure it on axle stands.
- Remove Strut Assembly: Unbolt the strut from the steering knuckle at the bottom and the strut tower in the engine bay at the top.
- Compress the Coil Spring: This is the critical step. A spring compressor is used to squeeze the spring, relieving pressure from the top mount. This is extremely dangerous if not done correctly.
- Replace the Mount: With the spring compressed, the top nut holding the mount can be safely removed. The old mount is taken off and the new one installed.
- Reassemble and Reinstall: The top nut is tightened, the spring compressors are carefully released, and the entire assembly is bolted back into the car.
- Wheel Alignment: The vehicle must have its wheel alignment checked and adjusted by a professional after the repair.
| Step | Key Action | Associated Risk / Note |
|---|---|---|
| 1. Removal | Unbolt strut from car. | Straightforward for mechanics. |
| 2. Spring Compression | Use a spring compressor tool. | EXTREMELY DANGEROUS. Tool failure can be fatal. |
| 3. Mount Swap | Remove top nut and replace mount. | Only safe once spring is fully compressed. |
| 4. Reassembly | Reinstall top nut, release spring tension. | Must be done carefully and evenly. |
| 5. Reinstall & Align | Bolt assembly into car and get alignment. | Alignment is mandatory for safety and tyre life. |
Which Strut Mounts Are Suitable for Different Vehicle Models?
Once you’ve decided to replace your strut mounts, you need to make sure you get the right parts. Unlike some generic components, strut mounts are highly specific.
Strut mounts are not one-size-fits-all. Each mount is designed for a specific range of vehicle makes, models, and years to match the chassis bolt pattern, strut design, and load requirements. Using the correct, high-quality part is essential for a safe and successful repair.
As a manufacturer and supplier, we at Gjbush maintain a massive catalogue of parts to serve the diverse global car market. The strut mount for a Ford Focus is completely different from one for a BMW 3 Series or a commercial van. The differences can be in:
- Bolt Pattern: The number and spacing of the top bolts must match the strut tower on the car’s chassis.
- Bearing Design: The internal bearing is designed to handle the specific weight and steering geometry of the vehicle.
- Height and Angle: The physical dimensions are engineered to maintain the correct suspension geometry.
The easiest way to ensure you get the right part is to use your vehicle’s registration number or VIN (Vehicle Identification Number) when ordering from a trusted supplier. This allows the supplier to match the exact OEM (Original Equipment Manufacturer) specification part to your car, guaranteeing a perfect fit and proper performance.
| Vehicle Type | Typical Strut Mount Characteristics |
|---|---|
| Compact Car (e.g., Ford Fiesta) | Lightweight design, often with a three-bolt pattern. |
| Family Saloon (e.g., VW Passat) | Robust design focused on comfort and noise isolation. |
| SUV / Truck (e.g., Land Rover Discovery) | Heavy-duty construction with a larger bearing to handle more weight. |
| Performance Car (e.g., BMW M3) | Stiffer rubber compound for better handling response, may offer camber adjustment. |
Conclusion
The strut mount is a small but mighty component that is fundamental to your car’s safety, steering, and comfort. Ignoring the signs of failure can be dangerous and costly.