Arnott air suspension products are high quality products with the following features: well-engineered and long-lasting.
This Chinese installation guide covers the Arnott C-2609 coil spring conversion kit for the Mercedes-Benz S550 (W221). It opens with safety warnings: the air suspension system is pressurized up to 10 bar (150 lbf/in), pressure must be confirmed released and system power disconnected before removal, and removal and installation must be carried out by fully qualified ASE-certified technicians.
The guide then walks through removing the front air struts (air line, three top mounting nuts, electrical connectors, brake line bracket, lower fastener, upper control arm), installing the front coil spring struts, removing the rear air struts, and installing the Arnott Electronic Bypass Module (EBM) with its wiring diagram and replacement of fuse #46 in the engine bay fuse box. Storage temperature is stated as 5°F to 122°F (-15°C to 50°C). This manual is written in Chinese.
| Part number | C-2609 |
|---|---|
| Vehicle application | Mercedes-Benz S550 (W221) |
| Air suspension system pressure (max) | 10 bar (150 lbf/in) |
| Storage temperature | 5°F to 122°F (-15°C to 50°C) |
应确认空气悬架系统的压力已经释放，并断开空气悬架系统的电源。
必须由完全合格的、具有自动化系统工程师（ASE）资格的专业人员完成。
更换 #46 保险，使用套件附带的保险。
保持空气悬架控制模块断开。