Place of Origin:
China
Brand Name:
SuspAir
Certification:
CE
Model Number:
A166 320 26 13
A1663202613 Front Left Air Suspension Shock Strut Without ADS for Mercedes Benz X166 GL-Class2011-
Original OE Number: A1663202613
Product Name: Mercedes‑Benz Front Right Air Shock Absorber, Front‑Right Air Suspension Strut Assembly, W166 Air Strut Assembly, Non‑ADS Front‑Right Air Damper Assembly
Installation Position: Front axle right side. Suitable for Mercedes‑Benz W166 / X166 chassis vehicles equipped with factory Airmatic air suspension without ADS adaptive damping. It is a core load‑bearing, damping and pressure‑retaining vulnerable assembly for front‑right air suspension. It maintains right‑front ride height, filters road bumps and stabilizes driving posture. It is a high‑frequency maintenance part for ML / GL / GLE / GLS series.
Product Description
A1663202613 is OEM‑equivalent front‑right air strut assembly for Mercedes‑Benz W166/X166 chassis with non‑ADS standard Airmatic suspension. It is the matching counterpart of front‑left strut A1663202513. As a key executive component of Airmatic system, it integrates high‑pressure air spring, hydraulic damper and multi‑layer pressure‑sealing structure. It realizes load‑bearing, automatic height adjustment, vibration absorption and corner‑posture balance. It effectively suppresses front‑end floating and body roll, reduces bumpy vibration and greatly improves high‑speed stability and luxury riding comfort.
Air struts on W166/X166 are typical high‑wear components for premium SUVs. Under long‑term heavy load, road impact, temperature alternation, chassis moisture‑sediment erosion and frequent inflation‑deflation cycles, original units suffer rubber aging & cracking, inner sealing membrane fatigue rupture, oil seal leakage and damping decay, resulting in slow air leakage and insufficient pressure retention. Typical failure symptoms: front‑right collapse, front‑end sag after overnight parking, obvious left‑right height difference, frequent air‑compressor cycling, slow lifting speed, height calibration failure, air‑suspension warning lamp on, excessive bouncing over speed bumps, floating steering at high speed and reduced steering accuracy. Continuous operation with defective struts will accelerate aging of valve block, air dryer and air compressor, trigger cascading failures of full air‑suspension system and bring high repair costs.
This A1663202613 front‑right air strut is 1:1 reproduced according to Mercedes‑Benz OEM specifications. Overall stroke, pressure‑bearing parameters, damping coefficient, airspring pressure rating, mounting holes, bushing seats and structural dimensions fully match OEM standards. Adopted thickened multi‑layer anti‑aging high‑pressure rubber airspring, double anti‑leak sealing structure, thickened anti‑rust piston rod and high‑low temperature resistant long‑life hydraulic oil. Upgraded anti‑aging, anti‑cracking, anti‑corrosion and anti‑fatigue technology solves common OEM defects including air leakage, front‑end sag, damping failure and poor pressure retention under low temperature. This is non‑ADS air‑hydraulic version. Vehicle‑position‑specific, direct bolt‑on fit without chassis modification or programming. Fully compatible with original Airmatic ECU logic. After installation, it thoroughly fixes front‑right collapse, slow air leakage, abnormal height adjustment and loose chassis performance, restores original luxury chassis texture. Featuring high stability and low rework rate, it is a popular air‑suspension part for repair shops, auto‑parts wholesale and cross‑border export.
Core Advantages
| Brand | Mercedes‑Benz |
| Chassis Code | W166 / X166 |
| Compatible Models | ML‑Class, GL‑Class, GLE‑Class, GLS‑Class |
| Applicable Version | Factory Airmatic air suspension, without ADS adaptive damping system |
| Non‑applicable Version | Vehicles with ADS adaptive electronic damping, mechanical hydraulic suspension, modified air suspension or other chassis platforms |
| Applicable Years | 2011‑2019 W166/X166 corresponding configuration models |
| Installation Position | Front axle, right‑side only |
| Product OE | A1663202613 |
| Product Type | Air Shock Absorber Assembly, Air Suspension Strut, Front Air Spring Strut, Air Suspension Damper Assembly |
| Assembly Feature | Brand‑new complete air strut assembly including air spring, damper cylinder, full sealing kit and upper & lower mounting seats |
| Material | High‑strength anti‑aging high‑pressure rubber airspring, precision anti‑rust piston rod, pressure‑resistant alloy cylinder tube, multi‑layer composite sealing oil seal, long‑life anti‑decay hydraulic damping oil |
| Process Standard | OE parameter reproduction, high‑pressure holding test, reciprocating fatigue compression test, high‑low temperature aging test, 100% air tightness inspection, precise damping calibration |
| Compatibility Note | Only for W166/X166 non‑ADS air‑suspension vehicles. Not compatible with ADS electronically controlled struts or mechanical dampers. Front‑left and front‑right cannot be mixed. |
| Sales Mode | Retail, bulk wholesale, full‑container export orders |
| Inspection Standard | 100% air tightness pressure‑holding test, damping coefficient calibration test, reciprocating fatigue test, full dimension & appearance inspection |
| Packaging | Reinforced neutral hard carton, customized color box & private‑label export packaging available |
| Working Condition | Adapt for city commute, highway long‑distance driving and rough‑road complex conditions, perfectly matches original Airmatic ECU and pressure‑holding logic |
| Risk Warning | Exclusive for front‑right position, cannot be mixed with front‑left strut. Pair inspection & replacement is recommended. Ride‑height calibration and air‑leak test must be performed after installation. |
| Recommended Matching Parts | Suggest inspect & replace together with air strut repair kit, air compressor, air dryer, height sensor and valve block to eliminate hidden leakage risks of whole air‑suspension system. |
Compatibility Instruction: This dedicated front‑right non‑ADS air strut assembly is for Mercedes‑Benz W166/X166 chassis. Vehicle‑position‑specific. Only fits 2011‑2019 ML / GL / GLE / GLS with factory Airmatic air suspension without ADS adaptive damping. Not compatible with ADS electronic struts or mechanical dampers. Cannot interchange with front‑left strut.
Exact Compatible Model List
Main OE Number: A1663202613 Interchangeable OE Numbers: A1663201413, A1663205066, A1663207416
Interchange Remark: Above part numbers are iterative interchangeable OEM numbers for W166/X166 front‑right non‑ADS air struts. They share identical structure, airspring pressure rating, damping parameters, mounting holes and ECU compatibility. Direct non‑destructive replacement without modification or programming.
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