The Arnott Air Suspension Conversion Kit replaces failing air suspension systems with durable, simplified components. It eliminates complex air compressors and valves, reducing maintenance costs while improving ride quality. Compatible with luxury vehicles like Mercedes-Benz and BMW, it’s favored for its reliability and OEM-grade construction. Answering “What is it?” in 60 words: This kit swaps error-prone air suspension with robust coil or strut systems, offering cost-effective reliability without compromising comfort.
How Does the Arnott Conversion Kit Improve Vehicle Performance?
The kit removes failure-prone air springs and compressors, reducing electronic errors and leaks. Its steel coils or gas-charged struts provide consistent support, eliminating “sagging” in older air systems. Riders report smoother handling and reduced body roll, particularly in SUVs. Arnott’s designs retain factory ride height sensors to prevent dashboard warnings, ensuring seamless integration.
Which Vehicles Are Compatible with Arnott’s Conversion Kit?
Arnott kits target luxury models like Mercedes GL-Class, BMW X5, Audi Q7, and Range Rover. Compatibility depends on year (typically 2000–2018). Each kit includes vehicle-specific brackets and hardware. Arnott’s website provides a VIN lookup tool to confirm fitment. Rarely supported: newer models with adaptive damping, which require proprietary sensors.
Specific compatibility varies by model generation. For example, the Mercedes GL-Class (2006-2012) requires different mounting brackets than 2013-2018 models. Range Rover Sport (2005-2013) kits include reinforced struts to handle off-road stresses, while Audi Q7 kits prioritize precise weight distribution for Quattro systems. Owners should note that hybrid or electric variants (like BMW X5 xDrive45e) often need custom solutions due to battery placement affecting suspension geometry. For rare models like Porsche Cayenne Turbo, Arnott offers limited-run kits through special order.
Can you use air suspension without a compressor?
| Vehicle Model | Supported Years | Kit Type |
|---|---|---|
| Mercedes GL450 | 2006-2012 | Coil Spring Conversion |
| BMW X5 | 2007-2018 | Strut Assembly Kit |
| Range Rover Sport | 2005-2013 | Heavy-Duty Strut Kit |
What Are the Cost Savings Compared to OEM Air Suspension?
Replacing one air strut costs $600–$1,200; full air system repairs exceed $3,000. Arnott’s kit averages $1,200–$2,500 for a complete set. Labor costs drop 30% since mechanics avoid diagnosing air leaks or compressor failures. Long-term savings: no recurring costs for air compressor replacements ($800–$1,500 every 3–5 years).
Why Do Mechanics Recommend Arnott Over Competitors?
Arnott uses ISO 9001-certified manufacturing and 100% pressure-tested components. Competitors like Sachs or OEM parts retain air systems’ complexity. Arnott’s nitrogen-charged struts outperform basic coilovers, reducing noise and vibration. Mechanics highlight its pre-assembled design: 75% come “bolt-ready,” minimizing assembly errors.
Technicians particularly appreciate the precision calibration of Arnott’s shock absorbers, which are tuned to match original suspension frequencies within 5% variance. This attention to detail prevents the “overly stiff” feel common in budget conversion kits. Unlike competitors who use universal bushings, Arnott employs vehicle-specific rubber compounds that resist cracking in extreme temperatures (-40°F to 250°F). Their patented anti-corrosion coating lasts 2-3x longer than standard finishes in salt-heavy regions, a key factor for shops in northern states.
What Warranty and Support Does Arnott Provide?
Arnott offers a lifetime warranty on defects, prorated after 5 years. Support includes free technical guidance via phone/email. Competitors like Strutmasters cap warranties at 5 years. Unique perk: Arnott covers labor costs up to $200 if installation reveals defective parts.
“Arnott’s conversion kits resolve chronic issues in European SUVs. Their nitrogen struts handle heavy loads better than aftermarket coils. One caveat: ensure the ECU is properly disabled. We’ve seen 90% fewer comeback repairs vs. OEM air systems.” – AutoTech Journal
FAQs
- Does the conversion affect towing capacity?
- No. Arnott’s kits are engineered to match or exceed factory load ratings.
- Can I revert to air suspension later?
- Yes, but it requires reinstalling the compressor and air lines, which may cost $1,500+.
- Is professional installation mandatory?
- While possible for advanced DIYers, professional installation ensures warranty compliance and proper ECU handling.