OE Quality
60-Day Returns

Unity 30-512800 Air Spring to Coil Spring Conversion Kit - Rear
Overview of Unity Air Spring to Coil Spring Conversion Kit
The Unity Electronic to Passive Air Spring to Coil Spring Conversion Kit (part number 30-512800) is designed specifically for Mercedes-Benz R320, R350, and R500 models. This conversion kit provides a reliable solution for replacing electronic air suspension components with a passive coil spring setup, ensuring consistent suspension performance.
- Compatible with Mercedes-Benz R320, R350, and R500 models
- Converts electronic air springs to passive coil springs
- Part number 30-512800 for precise identification
- Designed to maintain suspension integrity and ride quality
- Includes all necessary components for conversion
About the Electronic to Passive Air Spring to Coil Spring Conversion Kit
The Unity Electronic to Passive Air Spring to Coil Spring Conversion Kit is part of Unity's specialized product line focused on suspension conversions. This kit facilitates the transition from complex electronic air suspension systems to simpler, passive coil spring setups. It is engineered to provide a durable and effective alternative for Mercedes-Benz vehicles experiencing air spring failures or seeking a maintenance-friendly suspension option.
Detailed Product Description
This conversion kit replaces the electronic air springs on Mercedes-Benz R320, R350, and R500 models with passive coil springs, eliminating the need for air compressors and electronic controls. The part number 30-512800 ensures compatibility and ease of ordering. By switching to coil springs, the suspension system becomes less prone to air leaks and electronic malfunctions, offering a more straightforward and reliable suspension solution.
Common Applications and Issues Addressed
- Resolving air spring leaks and failures in Mercedes-Benz R320, R350, and R500
- Eliminating compressor and air line maintenance
- Reducing suspension system complexity and repair costs
- Improving suspension reliability for aging air suspension systems
- Providing a stable ride height without electronic adjustments
Installation Notes and Tips
Installation of the Unity 30-512800 conversion kit requires basic suspension knowledge and tools. It is recommended to have the vehicle securely lifted and supported before beginning. Follow the included instructions carefully to remove the existing air springs and install the coil springs. Verify proper fitment and suspension travel after installation to ensure safe operation.
Quality Assurance and Warranty
Unity manufactures this conversion kit to meet industry standards for durability and performance. While specific warranty details are not provided, Unity products typically undergo quality control to ensure reliability. For warranty information, consult the product documentation or contact the manufacturer directly.
This part fits 14 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2013 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2012 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2011 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2010 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2009 | Mercedes-Benz | R320 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2009 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2008 | Mercedes-Benz | R320 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2008 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2008 | Mercedes-Benz | R500 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2007 | Mercedes-Benz | R320 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2007 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2007 | Mercedes-Benz | R500 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2006 | Mercedes-Benz | R350 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
| 2006 | Mercedes-Benz | R500 | Rear | Includes (2) Springs (4) Rubber Isolators Converting Air/Electronic Suspension to Standard Suspension; Electronic to Passive Air Spring to Coil Spring Conversion Kit |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.