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Two black rubber rear air spring bags in a kit

Unity

Unity Rear Air Spring Kit 512401 512402

SKU CH-V7S5-B31MV

Rear air spring kit with two bags fits 2010-2017 Mercedes-Benz E-Class and CLS-Class models

  • Restores air-ride comfort with two new rear air springs
  • Fits 2012-2017 Mercedes CLS550 and CLS63 AMG W218 chassis
  • Fits 2010-2016 Mercedes E350, E550, E400 and E250 W212 chassis
  • Backed by 50 years of Unity suspension manufacturing experience
  • Trouble-free installation designed for long-lasting reliability

Rear Air Spring Kit for Mercedes W212 and W218

This Unity rear air spring kit contains two replacement air bags designed for 2012 to 2017 CLS550 and CLS63 AMG models on the W218 chassis, plus 2010 to 2016 E350, E550, 2014 to 2016 E250, and 2013 to 2016 E400 models on the W212 chassis. It restores the original air suspension ride quality.

Verify chassis code and model year before ordering

Confirm your vehicle uses the W212 or W218 chassis and falls within the listed production years. The kit fits specific engine variants including the 250, 350, 400, 550 and 63 AMG designations. Cross-reference your VIN or chassis plate to ensure exact application compatibility.

Replaces worn or leaking OE air springs

This kit directly substitutes the factory rear air springs on the listed Mercedes models. The upgrade is worthwhile when the original bags show cracking, air leaks or sagging that degrades ride height and comfort. Unity's 50 years of aftermarket experience back the durability of these replacement components.

Highlights

  • Restores air-ride comfort with two new rear air springs
  • Fits 2012-2017 Mercedes CLS550 and CLS63 AMG W218 chassis
  • Fits 2010-2016 Mercedes E350, E550, E400 and E250 W212 chassis
  • Backed by 50 years of Unity suspension manufacturing experience
  • Trouble-free installation designed for long-lasting reliability

Specifications

BrandUNITY

Questions about this item

Does the kit include both air springs or do I need to buy a second one separately?

The kit contains two rear air spring bags, so both sides are covered in one box.

Which part number matches my 2014 Mercedes-Benz E350 W212 chassis?

Both 512401 and 512402 are supplied together and fit the 2010–2016 E350 on the W212 chassis.

Will these springs restore the original ride height on a 2016 CLS63 AMG W218?

They are designed as direct replacements for the rear air springs on the 2012–2017 CLS63 AMG W218 chassis.

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