Rear Air Spring Bag – Left or Right Fitment for BMW X5 E70, X6 E71/E72 (Part 37126795013)

Description

Check part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.

Restore smooth ride height, balanced handling and reliable rear suspension performance in your BMW X5 (E70) or X6 (E71/E72) with this high-quality replacement rear air spring (air suspension bag), supplied by D2P Autoparts. Designed to meet OEM-spec standards and engineered for direct-fit replacement, this air spring bag (part 37126795013) replaces worn, cracked or leaking rubber bellows to bring back stable ride height, proper load support and optimal suspension comfort — whether you use your vehicle for daily driving, load carrying or towing. A correct air spring is vital to preserving ride comfort, safety and the self-levelling suspension functionality that defines BMW’s premium driving experience.
OEM Number : 37126795013 , 37126790078 , 37126773664, 37126790081, 37126790082, 37126776995, 37107850225, 37126774041, 37126783419, 37126783420, 37126790079, 37126790080, 37126790083

Our SKU: TB37126795013_313
All our air suspension & components are OEM quality and reliable after market car parts. This Left Or Right Air Spring (Rear) Bag Fits Bmw 37126795013 is specifically compatible with BMW: X5, X6.
Please use our make-model-year tool to check this part’s compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.
If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Registration number in our live chat or contact form and our experts will gladly help!

Key Benefits — Why Choose This Rear Air Spring Bag

• Restores proper rear ride height and balance — A fresh air spring bag prevents rear-end sagging or uneven posture, ensuring the vehicle remains level, even under load or after long parking periods.

• Eliminates sagging and air leaks — stabilises suspension performance — Since worn or cracked air bellows often leak air (especially under pressure or overnight), replacing them stops constant compressor cycling and prevents suspension collapse.

• Protects the air suspension system & extends compressor lifespan — A leaking bag forces the compressor to work harder and more frequently — replacing the bag reduces wear on compressors and valve blocks, avoiding expensive system failures.

• Restores comfort, handling, and safety under load or during towing — Proper air springs ensure stable rear suspension, smoother ride over bumps or uneven roads, and better load-carrying capacity — especially useful for SUVs like X5/X6 used for towing or carrying cargo.

• OEM-style fitment & easy replacement — As a direct-replacement for the original air spring, this part fits the rear left or right position on X5 E70 / X6 E71/E72 without complicated modification.

• Cost-effective maintenance vs major suspension overhaul — Instead of risking more serious air-suspension failures, replacing a worn air bag is a targeted repair that restores functionality and prevents further damage — often saving time and money in the long run.

❓ Frequently Asked Questions (FAQ)

Q: What does a rear air spring / air suspension bag do on my BMW X5 / X6?
A: The air spring (air suspension bag) replaces conventional coil springs on the rear axle — it holds compressed air to support the vehicle’s weight and maintain ride height, while allowing the suspension to self-level and adapt to changing loads. When functioning properly it ensures balanced posture, smooth ride comfort and correct suspension behaviour.

Q: How do I know if the air spring needs replacing?
A: Common signs of failing air springs include: rear end sagging or leaning (especially after parking), uneven ride height, the rear dropping overnight, frequent air-compressor activation without restoring height, rough ride or harsh suspension under load, and noticeable air leaks or visible damage (cracks/porous rubber) on the air bag.

Q: Can I replace just one side, or should I do both air springs at once?
A: While you can replace a single side (left or right), many owners prefer replacing both to restore balanced suspension and avoid repeating the job quickly — especially if one bag failed due to age or wear, the other may follow soon.

Q: Will replacing the air spring bag fix my suspension issues completely?
A: If the problem is caused by a worn or leaking air spring, then yes — replacing the bag typically restores correct ride height, prevents sagging and reduces compressor strain. However, if issues stem from a faulty compressor, valve block, air lines, or sensors, those components may also need inspection and possibly replacement.

Q: Is installation difficult? Do I need a specialist or can I do it myself?
A: While the air spring is a direct-fit replacement on compatible models, air suspension work should be done with care: the system is pressurised and requires correct depressurisation, safe lifting of the vehicle and clean connections. For safety and correct system behaviour, professional installation (or a well-equipped garage) is recommended.

Q: Why choose D2P Autoparts for this air spring rather than a used or cheap generic replacement?
A: D2P Autoparts provides high-quality, new air springs built to match OEM specifications — avoiding the risks of leaks, premature failure or poor ride that often come with used or low-grade parts. It’s a reliable, long-lasting solution that helps maintain the original comfort and performance of your X5/X6.

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