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Front left electronic air strut assembly for Mercedes-Benz models

Unity

Unity 28-113701 Front Left Electronic Air Strut Assembly

SKU CH-397G-FVQFR

Front left electronic air strut assembly replaces the suspension unit on 2007-2013 Mercedes-Benz S-Class and CL-Class models excluding Airmatic systems

  • Restores factory ride height with electronic air strut assembly
  • Designed for 2009-2013 Mercedes-Benz CL550 models
  • Fits 2012-2013 Mercedes-Benz S350 vehicles
  • Compatible with 2008-2011 Mercedes-Benz S450
  • Suits 2007-2013 Mercedes-Benz S550 excluding Airmatic

Front Left Air Strut for Mercedes Models

This new Unity 28-113701 electronic air strut assembly replaces the front left unit on 2009-2013 CL550, 2012-2013 S350, 2008-2011 S450 and 2007-2013 S550 vehicles. It is designed for models without Airmatic suspension. The part restores ride height and damping control for the specified applications.

OE-Style Construction With Electronic Integration

Unity manufactures this assembly to match original equipment fitment using over 50 years of aftermarket suspension experience. The electronic connector plugs directly into the vehicle harness without adaptation. Solid mounting points and sealed housing protect internal components from road debris and moisture during daily driving.

Verify Model Year and Suspension Type Before

Confirm your vehicle matches the listed model years and lacks Airmatic suspension, as this unit excludes that system. Check the existing front left strut for electronic wiring and the correct mounting orientation. Cross-reference the 28-113701 part number with your dealer or service manual to ensure compatibility.

Highlights

  • Restores factory ride height with electronic air strut assembly
  • Designed for 2009-2013 Mercedes-Benz CL550 models
  • Fits 2012-2013 Mercedes-Benz S350 vehicles
  • Compatible with 2008-2011 Mercedes-Benz S450
  • Suits 2007-2013 Mercedes-Benz S550 excluding Airmatic

Specifications

BrandUNITY

Questions about this item

Which Mercedes-Benz models does the 28-113701 front left electronic air strut assembly fit?

It fits the 2009-2013 CL550, 2012-2013 S350, 2008-2011 S450 and 2007-2013 S550, excluding Airmatic-equipped vehicles.

What physical mounting points must match on the vehicle for this strut to install correctly?

The assembly is engineered to the original equipment mounting geometry for the listed Mercedes-Benz models, so the upper strut mount, lower control arm attachment and air line connection points must align with OE specifications.

What is the critical installation step that is often missed when fitting this electronic air strut?

The electronic connector for the suspension control module must be fully seated and the air line securely locked before pressurising the system, otherwise the ECU will register a fault and the strut will not function.

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