Arnott New Coil Spring Conversion Kit BMW X5 (E53 Chassis) - Installation Manual - Rev 05 - January 14, 2026

Oct 22, 2026

Installation manual for the Arnott New Coil Spring Conversion Kit designed for BMW X5 (E53 chassis). Provides safety and general information, including pressure relief, disconnection of the air suspension system power, PPE guidance, and warnings about stored energy and supported jacking points. Details front air spring removal steps and coil spring conversion installation, followed by rear air spring removal through trunk access, trim removal, and air reservoir access. Notes completion requirements including a four-wheel alignment.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages26

Reading Time1 h 6 min

AccessFree to download

General Information

Front Air Spring Removal

Front Coil Spring Conversion Installation

Rear Air Spring Removal

INSTALLATION MANUAL C-2664 Arnott New Coil Spring Conversion Kit BMW X5 (E53 Chassis) Engineered to Ride, Built to Last® 1 REV 05 | January 14, 2026 CONGRATULATIONS ON YOUR PURCHASE OF AN ARNOTT® SUSPENSION PRODUCT WE AT ARNOTT LLCARE PROUD TO OFFERA HIGH QUALITY PRODUCT WITH ALL THE TECHNICAL SUPPORT YOU NEED. THANKYOU FORYOUR CONFIDENCE IN USAND OUR PRODUCT. Proper installation is essential to experience and appreciate the benefits of this system. Please take a moment to review these installation instructions before you begin to install these components on your vehicle. The removal and installation of air suspension products should only be performed by a fully qualified and certified automotive professional. It is equally important to be aware of all necessary safety measures while installing your new Air Suspension System. This includes proper lifting and immobilizing of the vehicle and isolation of any stored energy to prevent personal injury or property damage. GENERAL INFORMATION Reading this manual signifies your agreement to the terms of the general release, waiver of liability, and hold harmless agreement, the full text of which is available at [www.arnottinc.com](www.arnottinc.com) and [www.arnotteurope.com](www.arnotteurope.com). WARNING: The air suspension system is under pressure (up to 10 bar, or 150 lbf/in). Verify pressure has been relieved and disconnect power to the air suspension system prior to disassembly. Do not allow dirt or grease to enter the system. Always wear standard hand, ear, and eye protection when servicing the air suspension system. • Not to be stored below 5°F (-15°C) and above 122°F (50°C). • Avoid damage to air lines and cables. • Removal and installation is only to be performed by fully qualified personnel. • Use car manufacturer’s diagnostic software. CAUTION: Damage to the vehicle and air suspension system can be incurred if work is carried out in a manner other than specified in the instructions or in a different sequence. To avoid the possibility of short circuits while working with electric components consult your owner’s manual on how to disconnect your battery. Consult your vehicle owner’s manual, service manual, or car dealer for the correct jacking points on your vehicle and for additional care, safety and maintenance instructions. Under no circumstances should any work be completed underneath the vehicle if it is not adequately supported, as serious injuries and death can occur. For vehicles with a “Closed Air Supply System,” replacement of components requires proper adherence to procedures set forth within OE servicing literature. Failure to comply with the OE prescribed procedures can result in component damage and/or failure. 2 C-2664 Installation Manual REV 05 | January 14, 2026 NOTE: UPON COMPLETION OF INSTALLATION, A 4 WHEEL ALIGNMENT IS REQUIRED. FRONT AIR SPRING REMOVAL 1. Set the steering to straight ahead. 2. Raise the vehicle. 3. Remove the front wheel(s). 4. Remove the brake hose from the retention bracket on the strut. (Figure 1) FIGURE 1 3 C-2664 Installation Manual REV 05 | January 14, 2026 5. Disconnect the sway bar link by removing the nut that secures the ball joint to the strut. (Figure 2) FIGURE 2 6. Open the hood and remove the three (3) upper mount nuts. (Figure 3) FIGURE 3 4 C-2664 Installation Manual REV 05 | January 14, 2026 7. Remove the two (2) large bolts and nuts that hold the strut to the spindle assembly. (Figure 4) FIGURE 4 8. Separate the spindle from the strut. Now you have access to the hose connection. (Figure 5) FIGURE 5 5 C-2664 Installation Manual REV 05 | January 14, 2026 9. Slowly unscrew the air line fitting from the top mount to deflate and free the assembly (Figure 6). Discard the air line fitting. FIGURE 6 10. Remove the strut from the vehicle. 11. Removal complete. 6 C-2664 Installation Manual REV 05 | January 14, 2026 FRONT COIL SPRI

FAQs

What safety precautions are required before disassembly of the air suspension system?

Relieve system pressure, verify it has been relieved, and disconnect power to the air suspension system prior to disassembly. Wear standard hand, ear, and eye protection and prevent dirt or grease from entering the system.

What must be done after completing the installation?

A 4 wheel alignment is required upon completion of installation.

Who should perform the removal and installation work?

Removal and installation should only be performed by a fully qualified and certified automotive professional or fully qualified personnel, following the correct procedures.

Oct 22, 2026

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