A2123200813 A2123201838 A2123202338 Front Right Air Suspension Shock Strut for Mercedes-Benz W212 W218 E220  E250  E300 E350 2 Matic

A2123200813 A2123201838 A2123202338 Front Right Air Suspension Shock Strut for Mercedes-Benz W212 W218 E220 E250 E300 E350 2 Matic

1. Product Introduction

Original OE Numbers (Superseded & Interchangeable):A2123200813, A2123201838, A2123202338

Product Name: Mercedes W212 / W218 Front Right Air Strut Assembly, E-Class / CLS-Class Front Axle Right Airmatic Basic Air Suspension Shock Absorber, Front Right 2WD Air Strut Assembly without ADS

Installation Position: Front axle right side (Exclusive for 2WD, front right only, basic air suspension without ADS). Fits Mercedes W212 E-Class and W218 CLS-Class 2WD models equipped with factory basic air suspension. Not compatible with AWD, ADS electronic damping, or front left side. These three OE numbers are factory superseded replacement parts, fully interchangeable with identical structure, mounting holes and damping performance.

Product Description A2123200813 / A2123201838 / A2123202338 are OEM-spec front right basic air strut assemblies without ADS for Mercedes W212 and W218 2WD vehicles. They are high-frequency wear parts for E-Class and CLS-Class entry air suspension. Mercedes updated this part three times: old version A2123200813 was superseded by A2123201838, and finally upgraded to A2123202338. All three part numbers are 100% bolt-on interchangeable to fix the original factory defects of air spring aging, slow air leakage and insufficient support. This air strut adopts pure mechanical hydraulic structure, no ADS solenoid valve, no electronic adaptive damping. It only fits vehicles with basic factory Airmatic system. Combined high-pressure air spring and precision hydraulic damper realize ride height adjustment and shock absorption, perfectly matching the comfort-oriented chassis calibration of W212/W218 2WD models.

For W212 and W218 2WD vehicles, after long-term city driving, highway trips, repeated temperature changes and chassis mud & water corrosion, the air strut suffers continuous inflation and deflation and tends to age. Common factory failures: rubber air spring hardening, cracking, bulging and slow air leakage, resulting in overnight front right sagging and tilted body posture; degraded internal hydraulic oil and worn oil seals cause weak damping, bouncy ride over bumps and insufficient front support. There will be no electronic warning light, but symptoms including frequent air compressor activation, slow height adjustment, uneven front ride height, minor pull during driving and loose chassis noise. If not replaced in time, it will accelerate the wear of air compressor, valve block and height sensor, triggering cascading failure of the whole air suspension system and higher repair costs.

This front right air strut with 3 interchangeable OE numbers is 1:1 reproduced strictly according to Mercedes W212/W218 OEM 2WD specifications with optimized upgraded structure. The 2WD-specific damping coefficient, air spring pressure rating, mounting holes and stroke dimension fully meet the latest OEM standard of A2123202338. It adopts thickened multi-layer temperature-resistant burst-proof rubber air spring, multiple high-pressure sealing structure, rust-proof precision piston rod and long-life anti-degradation hydraulic oil. Anti-aging, crack resistance, fatigue resistance and burst pressure are greatly improved, solving the durability weakness of old A2123200813. Designed for light-weight chassis load of W212/W218 2WD, it fundamentally solves front right air leakage, front sagging, uneven posture, loose chassis and abnormal height adjustment. This is 2WD basic version without ADS. Direct bolt-on installation without chassis modification, no coding required. After installation, air tightness inspection and vehicle height calibration are required to restore all original air suspension functions, returning the original comfortable chassis feel of Mercedes. Low return rate, suitable for garage maintenance, auto parts stocking and cross-border e-commerce export.

Core Advantages ✅ 3-in-1 interchangeable OE numbers: 0813 /1838 /2338 factory superseded replacement, 100% bolt-on fit, eliminates part number matching confusion ✅ Dedicated front right for 2WD without ADS, perfect match for W212/W218 entry basic air suspension, no error codes or mismatching ✅ Upgraded burst-proof air spring structure, improves original air leakage issue, temperature resistant & anti-aging with stable pressure retention ✅ Pure mechanical hydraulic damping design, no electronic faults, high stability and low failure rate, ideal for long daily driving ✅ Reinforced anti-fatigue damping tuning, solves front bouncing, loose chassis, high-speed sway and minor pulling issues ✅ Brand new full assembly with complete accessories, no coding needed after calibration, reduces after-sales cost for repair shops

2. Custom Attributes for E-commerce Listing

Brand: Mercedes-Benz Chassis Code: W212 (E-Class), W218 (CLS-Class) Vehicle Model: Mercedes E-Class & CLS-Class Luxury Sedan (2MATIC 2WD Version) Version Requirement: Factory Basic Airmatic Air Suspension, without ADS Adaptive Damping, exclusive for 2WD Not Compatible: 4MATIC AWD vehicles, air suspension with ADS, ABC active body control, mechanical coil spring suspension, other chassis W211/W213/W219, front left position Applicable Years: 2009‑2016 all W212 / W218 2WD air suspension models Installation Position: Front axle right side (Front right exclusive, cannot fit front left or AWD models, no ADS) Product OE: A2123200813, A2123201838, A2123202338 Product Type: Front Right 2WD Air Strut Assembly without ADS, W212/W218 Basic Airmatic Air Suspension Shock Assembly Status: Brand new full assembly (including burst-proof air spring, 2WD dedicated damper cylinder, full sealing kit, upper & lower mounting bushings, no ADS solenoid valve) Material: High strength multi-layer anti-aging high-pressure rubber air spring, rust-proof precision piston rod, high-pressure alloy cylinder, multi-layer composite oil seal, long-life anti-degradation hydraulic damping oil Production Standard: OEM superseded parameter replication, high & low temperature pressure test, 2WD load fatigue test, 100% air tightness inspection, precise damping calibration Compatibility Note: Three OE numbers interchangeable. Only fits Mercedes W212/W218 2WD vehicles with basic air suspension without ADS, front right only. Not for AWD, ADS-equipped, front left or other chassis Sales Method: Retail, bulk wholesale, full container export orders Inspection Standard: 100% air pressure holding test, damping coefficient calibration, high-low temperature pressure test, 2WD load fatigue test, dimension & appearance inspection Packaging: Reinforced neutral carton. Custom color box, neutral export package and OEM logo printing available Working Condition: City commute, highway cruise and daily driving for 2WD vehicles. Fully compatible with basic Airmatic logic of W212/W218 Warning: Only for front right installation on W212/W218 2WD non-ADS air suspension. Not for AWD/ADS/front left/other chassis. Air tightness test and ride height calibration required after installation Purchase Suggestion: Highly recommended to replace front left & front right as pair. Match with air spring repair kit, air compressor, valve block and height sensor for full maintenance to fix uneven front posture

3. Compatible Vehicles

Compatibility Instruction: A2123200813 / A2123201838 / A2123202338 are front right basic air strut without ADS exclusively for W212/W218 2WD chassis. Three OE numbers are factory superseded and fully interchangeable. Only fits 2MATIC 2WD vehicles with factory basic Airmatic air suspension without ADS, for front axle right side only. Not compatible with 4MATIC, ADS, ABC, mechanical spring suspension, other chassis or front left position.

Exact Compatible List

1. Mercedes E-Class W212 (2009‑2016): E180, E200, E260, E300, E320, E350 2MATIC 2WD models with factory basic Airmatic suspension without ADS
2. Mercedes CLS-Class W218 (2011‑2017): CLS260, CLS300, CLS350 2WD models with basic air suspension without ADS

4. Interchangeable OE Numbers

Main Interchangeable OE Group: A2123200813, A2123201838, A2123202338 Additional Interchangeable OE Part Numbers: A2123203238, A212320323880

Interchange Remark: The above OE numbers are OEM superseded replacement parts for W212/W218 2WD front right non-ADS air strut. Identical dimension, damping parameter, air spring pressure rating and mounting holes. Direct bolt-on replacement without chassis modification or coding.

5. FAQ

Q1: What is the relationship between these three OE numbers? Can they replace each other? A: They are factory superseded upgraded parts: old A2123200813 → mid-version A2123201838 → latest A2123202338. Same structure, dimension and function. Fully interchangeable for the same vehicle and mounting position.

Q2: Does it fit AWD models or high-spec vehicles with ADS? A: No. This strut is made exclusively for 2WD without ADS. AWD chassis has different load, damping stroke and electronic logic. Vehicles with ADS are equipped with wiring harness for solenoid valve. Fitting this strut will trigger fault codes, abnormal body posture and malfunction.

Q3: Can this strut be fitted to front left? A: No. W212/W218 front left and front right struts differ in mounting points and damping tuning. Front left requires dedicated part number, left and right cannot be swapped.

Q4: Coding required after replacement? A: No coding or programming needed. Only perform air tightness inspection and vehicle height calibration, clear fault codes for normal operation.

Q5: What symptoms indicate replacement of this front right strut? A: Overnight front right sagging, uneven front height, frequent compressor operation, slow or stuck height adjustment, bouncy front end over speed bumps, minor pull at high speed and abnormal chassis noise. No warning lamp but abnormal body posture, these are typical signs of air spring leakage and aging.

Q6: Only one front side damaged, do I need to replace in pair? A: Pair replacement is recommended. W212/W218 2WD chassis requires consistent damping and support force on both front sides. Single side replacement leads to uneven front height, inconsistent bounce and degraded ride comfort.

Q7: Original old part is A2123200813, can I install A2123202338 directly? A: Yes. It is official OEM superseded upgrade. Direct bolt-on fit, fully compatible with all functions, the best replacement option for old 0813 and 1838.

Q8: What parts are included in the assembly? Do I need to buy air spring separately? A: It is sold as a complete assembly, including air spring, damper cylinder, sealing parts and upper/lower bushings. No extra parts required, ready for direct installation.

6. Custom Service

1. OEM Private Label: Support logo silk printing, neutral no-mark export package and custom color box, suitable for Amazon, eBay, AliExpress, and other cross-border platforms.
2. Bulk Supply: The 3-OE interchange air strut is in continuous stock. Support retail, bulk wholesale and full container export orders, stable supply, fast lead time and competitive price.
3. Complete W212/W218 Air Suspension Package: One-stop supply of full E-Class / CLS-Class air suspension spare parts, including front & rear air struts, air springs, air compressors, air dryers, valve blocks, height sensors and repair kits.
4. E-commerce Material Support: Free product photos, detail pictures, OE cross reference table, W212/W218 fitment list and installation calibration documents, ready for store listing, short video promotion and page decoration.