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Black cylindrical rear air spring with metal end caps and O-ring seal kit

Unity

Unity 15-525700 Rear Air Spring

SKU CH-NQH6-0PCPJ

Replaces rear air springs on 2010-2014 BMW 5-Series models without Electronic Dampening Control, includes O-ring seal kit

  • Designed for safe, comfortable air ride
  • Fits 2010-2014 BMW 5-Series models without Electronic Dampening Control
  • Includes O-ring seal kit for trouble-free installation
  • Backed by over 50 years of aftermarket suspension experience
  • Elite Suspension Line replacement air spring restores your system

Rear Air Spring for BMW 5 Series

The Unity 15-525700 is a new rear air spring designed to replace worn units on specific BMW 5 Series models from 2010 through 2014. It restores the air suspension system to deliver a safe and comfortable ride. An O-ring seal kit is included to support a trouble-free installation. This part is built for long-lasting reliability in daily driving conditions.

Verify Chassis Code and Damping System

Before ordering, confirm the vehicle uses an F07 or F11 chassis and does not have Electronic Dampening Control. The spring fits saloon, Gran Turismo and Touring variants including the 520i, 525i, 528i, 528i xDrive, 530i, 535d, 535d xDrive, 535i, 535i GT, 535i GT xDrive, 550i, 550i GT, 550i GT xDrive and 550i xDrive. Compatibility is limited to the exact model years listed.

Sustained Load Behaviour

The spring maintains consistent ride height and damping response during extended journeys and when carrying typical rear-axle loads. Unity’s manufacturing experience ensures the rubber bladder and crimp rings resist fatigue over repeated compression cycles. The included O-ring seals preserve system pressure over time, preventing the gradual sag that develops with aged components.

Highlights

  • Designed for safe, comfortable air ride
  • Fits 2010-2014 BMW 5-Series models without Electronic Dampening Control
  • Includes O-ring seal kit for trouble-free installation
  • Backed by over 50 years of aftermarket suspension experience
  • Elite Suspension Line replacement air spring restores your system

Specifications

BrandUNITY

Questions about this item

Does the Unity 15-525700 rear air spring come with any installation hardware or is it just the spring itself?

The product includes an O-ring seal kit for installation. No other hardware is mentioned in the listing.

How do I know if the 15-525700 is the correct version for my 2014 BMW 535i?

This part fits 2010-2014 535i models on F07 and F11 chassis without Electronic Dampening Control. Verify your chassis code and suspension type before ordering.

What does the 50-year manufacturer experience mean for the durability of this air spring on a 550i?

Unity specialises in aftermarket suspension parts designed for trouble-free installation and long-lasting reliability, restoring safe and comfortable air ride.

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