A1663206766 A1663201313 Front Left Air Suspension Shock With ADS for Mercedes-Benz ML GL X166 W166                         DODG                                                                     

A1663206766 A1663201313 Front Left Air Suspension Shock With ADS for Mercedes-Benz ML GL X166 W166 DODG

1. Product Introduction

Original OE Number: A1663206766, A1663201313

Product Name: Mercedes‑Benz Front Left Air Shock Absorber, Front‑Left Air Suspension Strut Assembly, W166/X166 Air Spring Strut, Non‑ADS Front‑Left Air Damper Assembly

Installation Position: Front axle left side. Fits Mercedes‑Benz W166 / X166 ML‑Class, GL‑Class and DODGE (2013‑NOW) equipped with factory Airmatic air suspension without ADS adaptive damping. It is a critical load‑bearing, pressure‑retaining and damping vulnerable component for front‑left air suspension, high‑demand spare part for after‑sales repair.

Product Description

A1663206766 and A1663201313 are iterative interchangeable front‑left air strut assemblies for W166/X166 chassis. As core executive component of Airmatic system, it integrates high‑pressure burst‑proof air spring, precision hydraulic damper and multi‑layer composite sealing structure. It realizes load‑bearing, automatic height adjustment, road bump absorption, corner posture balance and high‑speed anti‑vibration performance. It maintains correct front‑left ride height, filters fine road vibration, suppresses body floating and corner roll, and improves high‑speed stability and riding comfort.

Air struts on W166/X166 and matched DODGE vehicles are high‑wear chassis parts. Under continuous vehicle load, road impact, temperature cycling, chassis dirt‑moisture erosion and frequent inflation‑deflation cycles, original air spring rubber tends to age and crack. Inner sealing membrane fatigue rupture, oil seal leakage and hydraulic oil degradation cause slow air leakage and pressure retention failure. Typical failure symptoms: front‑left sag, vehicle sink after parking, obvious left‑right height difference, frequent air compressor cycling, slow lifting speed, height calibration failure, air‑suspension warning lamp on, bouncy performance over pits, floating feeling at high speed. Continuous driving with defective struts will accelerate damage to air compressor, valve block, air dryer and height sensor, resulting in cascading failure of whole air suspension and high repair cost.

This front‑left air strut is 1:1 reproduced per Mercedes‑Benz OEM specifications. Overall stroke, pressure‑bearing rating, damping coefficient, airspring pressure resistance, mounting holes and bushing dimensions fully match OEM standards. Adopts thickened multi‑layer anti‑aging high‑pressure rubber airspring, double anti‑leak sealing structure, anti‑rust thickened piston rod and wide‑temperature long‑life hydraulic oil. Optimized anti‑aging, anti‑cracking and anti‑corrosion performance solves common OEM defects such as air leakage, front‑end sag, damping decay and poor low‑temperature pressure retention. This is non‑ADS air‑hydraulic version. Vehicle‑position‑specific for front left, direct bolt‑on installation, no chassis modification, no coding required, fully compatible with original Airmatic ECU. After replacement, it fixes front‑left collapse, slow air leakage, abnormal height adjustment and loose chassis performance, restores original chassis texture with low rework rate. Suitable for repair‑shop maintenance, auto‑parts wholesale and cross‑border export.

Core Advantages

• ✅ 1:1 OEM reproduction, dual interchangeable OE numbers, perfectly matched hole position, stroke and damping parameters, direct bolt‑on fit
• ✅ Solves W166/X166 common air‑suspension faults: front‑left sag, air leakage after parking, uneven body height, air‑suspension warning, compressor over‑wear
• ✅ Multi‑layer thick high‑pressure airspring, wide temperature tolerance, anti‑aging & crack‑resistant, reduces slow‑leak risk
• ✅ Non‑ADS version, fits Mercedes‑Benz ML‑Class / GL‑Class W166/X166 and DODGE 2013‑NOW, large market stock
• ✅ Exclusive front‑left unit, must be used paired with front‑right strut, corrects body tilt
• ✅ Complete pre‑assembled unit, no extra accessories needed, easy installation, fast recovery of chassis stability and riding quality

2. Custom Attributes for E‑commerce Listing

3. Compatible Vehicles

Compatibility Instruction: This dedicated front‑left non‑ADS air strut assembly is for W166/X166 chassis. A1663206766 and A1663201313 are interchangeable. Vehicle‑position‑specific. Only fits 2013‑NOW Mercedes‑Benz W166 ML‑Class, X166 GL‑Class and corresponding DODGE vehicles with factory Airmatic non‑ADS configuration. Not compatible with ADS struts, mechanical springs or modified air suspension. Left‑right cannot be interchanged.

Exact Compatible Model List

1. Mercedes‑Benz ML‑Class (W166) 2013‑NOW, Airmatic non‑ADS
2. Mercedes‑Benz GL‑Class (X166) 2013‑NOW, Airmatic non‑ADS
3. DODGE 2013‑NOW, matched Airmatic non‑ADS configuration

4. Interchangeable OE Numbers

Main OE Numbers: A1663206766, A1663201313 Interchangeable OE Numbers: A1663202513

Interchange Remark: Above part numbers are iterative interchangeable OEM references for W166/X166 front‑left 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 coding.

5. FAQ

• Q1: Which vehicles fit A1663206766 / A1663201313? A: Fits Mercedes‑Benz W166 ML‑Class, X166 GL‑Class and DODGE 2013‑NOW with factory Airmatic non‑ADS configuration. Not for ADS‑equipped or mechanical‑spring vehicles.
• Q2: Can these two OE numbers replace each other? A: Yes, they are iterative OEM parts with identical dimension, parameters and mounting interfaces, direct interchange is allowed.
• Q3: Is this strut for front‑left or front‑right? Can they be swapped? A: This unit is front‑axle left‑side exclusive. Left‑right have different geometry and parameters. Mix‑use is forbidden, otherwise body tilt, fault codes and abnormal height adjustment will occur.
• Q4: Can I install this on vehicles with ADS adaptive damping? A: Not applicable. This is non‑ADS air‑hydraulic strut without ADS electronic control function. It will trigger fault codes and damping mismatch.
• Q5: Is computer programming required after replacement? A: No coding needed. After direct replacement, bleed pipeline air, perform air‑leak test, calibrate ride height and clear fault codes.
• Q6: What symptoms indicate air strut replacement? A: Front‑left sag, vehicle sinks after overnight parking, uneven body height, frequent compressor operation, slow lifting, air‑suspension warning lamp on, bouncy ride over pits and floating steering at high speed. These mean air‑spring leakage and replacement is required.
• Q7: Can I replace only one single strut? A: Pair‑replacement is strongly recommended. Mismatched damping and pressure‑retention performance between old and new units may cause body tilt, steering offset and abnormal corner roll, which affects driving safety.

6. Custom Service

1. OEM Private Label Customization: Support logo printing, neutral no‑label export package and customized color box, suitable for Amazon, eBay and other cross‑border platforms.
2. Bulk Supply Service: A1663206766 / A1663201313 in stock. Support retail, large‑volume wholesale and full‑container export with stable supply and fast lead‑time.
3. Complete Air‑Suspension Parts Supply: One‑stop supply for full W166/X166 air‑suspension components: air struts, air compressor, air dryer, valve block, height sensor, repair kits and more.
4. E‑commerce Material Support: Provide real‑product photos, close‑up pictures, OE cross‑reference table, compatible‑vehicle list and installation reference documents for store listing and short‑video marketing.