BMW E90 Boot Struts
BMW E90 Boot Struts are direct OEM replacement gas springs designed to restore proper trunk support and smooth opening performance for BMW E90 Sedan (2005–2011). When original struts wear out, the trunk may become weak, fail to stay open, or drop unexpectedly. GASTAC boot struts provide stable lifting force, precise fitment, and reliable durability, ensuring factory-like trunk operation with easy installation and cost-effective performance.
BMW E90 Boot Struts
BMW E90 Boot Struts are high-quality gas lift supports designed to restore smooth and stable trunk operation for BMW E90 Sedan models (2005–2011). When original struts become weak or fail, the trunk may drop, lose support, or no longer stay open safely.
GASTAC BMW E90 boot struts provide a direct OEM replacement with precise fitment, stable lifting force, and easy installation. Built for durability and daily use, they restore factory-like trunk performance at a more cost-effective price, with fast delivery and support for small batch orders.
What Causes BMW E90 Boot Struts to Fail Over Time?
The boot struts on the BMW E90 are gas-filled components designed for repeated lifting and holding cycles. Over time, continuous use and environmental exposure gradually reduce their performance, leading to loss of support and eventual failure. When boot struts fail, the trunk may become difficult to lift, fail to stay open, or close unexpectedly, indicating that replacement is required. Main reasons include:
- Loss of internal gas pressure over time
- Wear and aging of internal seals
- Temperature fluctuations affecting gas performance
- Continuous daily usage and mechanical fatigue
- Gradual oil leakage or internal wear
Common Problems of Worn E90 Boot Struts
Worn boot shocks on the BMW E90 gradually lose their gas pressure over time, resulting in poor lifting performance and reduced safety during boot operation. If you are experiencing any of these issues, it is time to replace your boot gas struts. Common problems include:
- Boot lid falls down unexpectedly
- Weak or no lifting support
- Difficulty keeping the boot open
- Gas leakage from old boot struts
- Reduced performance in cold weather
Why Choose GASTAC BMW E90 Boot Struts?
- ✔ OEM exact replacement fit
- ✔ Stable trunk support performance
- ✔ Long service life and durability
- ✔ Easy installation in minutes
- ✔ Factory-like trunk operation restored
- ✔ Cost is only about 1/3 of OEM original parts or even lower
- ✔ Fast delivery for reduced downtime
- ✔ Support for small batch orders and flexible purchasing needs
BMW E90 Boot Gas Struts Specifications
The BMW E90 boot gas struts are designed to meet OEM specifications, ensuring stable lifting performance, precise fitment, and long-lasting durability. GASTAC also offers different OEM versions of BMW E90 boot shocks, providing customers with more flexible options and better compatibility choices. Below are the key technical specifications for this model:
| OEM | Image | Rod / Tube Ø | Stroke | Extended Length | Force |
|---|---|---|---|---|---|
| 51244365787 |  |
8/18 mm | 110 mm | 370 mm | 320 N |
| 51244365788 |  |
8/18 mm | 110 mm | 370 mm | 320 N |
| 51244394052 |  |
8/18 mm | 110 mm | 370 mm | 320 N |
| 51247250308 |  |
8/18 mm | 110 mm | 370 mm | 320 N |
| 51247060623 |  |
8/18 mm | 110 mm | 370 mm | 320 N |
| 51247129194 |  |
8/18 mm | 110 mm | 370 mm | 320 N |
Compatible BMW E90 Models
This boot strut set is a direct OEM replacement and provides perfect fit without modification, ensuring reliable performance and easy installation for your vehicle. It is designed to fit a range of BMW 3 Series models:
- BMW BMW E90 Sedan (2005–2011)
- BMW E91 Touring (2005–2012)
- BMW E92 Coupe (selected applications)
- BMW E93 Convertible (boot support applications)
Interior Technology
- Highest corrosion resistance achieved through powder coated cyclinders and special treated piston rod surfaces.
- Minimal friction for the production of lowest extension forces.
- Great life cycles.
- Protection against vibration and light side forces.
- Integrated grease chamber.
- Low break away forces.
- Installation and storage in any position.
Easy Installation – No Special Tools Required
Replacing the BMW E90 boot struts is quick and straightforward. The installation process is designed for easy DIY replacement without any special tools. Installation time is approximately 5–10 minutes, and no special tools are required. Before starting, always ensure the trunk is properly supported for safety. Installation Steps (For detailed installation steps, please visit: Replacing Boot Struts):
- Step 1: Open the boot and securely support it
- Step 2: Remove the old boot struts by unclipping both ends
- Step 3: Install the new boot struts into the original mounting points
- Step 4: Test boot opening and closing function
Why Replace Your BMW E90 Boot Struts?
Old or weak boot struts can lead to unsafe and inconvenient operation. If you notice any performance issues, it is recommended to replace the boot struts as a pair. Replacing them restores:
- Smooth and controlled trunk opening
- Safe support for hands-free access
- Proper lifting force
- OEM-level performance
- Long-term reliability
BMW E90 Boot Struts FAQs
During the use of BMW E90 boot struts, customers may encounter various issues related to trunk support, lifting performance, and installation. Below are the most frequently asked questions before replacing the boot struts:
A: This is usually caused by worn or gas-leaking boot struts. Over time, the internal gas pressure weakens and can no longer support the trunk lid properly.
A: Yes, these struts are designed as direct OEM-equivalent replacements that match original fitment and performance specifications.
A: Yes, it is strongly recommended to replace both left and right struts together to ensure balanced support and safe trunk operation.
A: Installation usually takes about 5–10 minutes and requires no special tools. It is a simple DIY replacement process.
A: These boot struts are designed for BMW E90 Sedan (2005–2011). Please confirm your OEM part number before ordering to ensure compatibility.
A: The package includes a complete set of 2 trunk gas struts (left and right), ready for direct installation.
A: GASTAC provides OEM-fit replacement quality, stable lifting performance, long service life, fast delivery, and cost-effective pricing compared to original OEM parts.
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