Air Suspension Parts for E60: Complete Guide to Replacement and Upgrade

If you own a BMW 5 Series E60 (2003–2010), you know the ride quality is a big part of the experience. Many E60s came with optional rear air suspension or the full Dynamic Drive system. Over time, air springs, compressors, and valve blocks can fail. This guide covers the essential air suspension parts for E60, what to look for when buying, and how to decide between OEM and aftermarket options.

Understanding Your E60's Air Suspension System

The E60's air suspension typically involves the rear axle, though some models have front air struts as well. The main components are:

• Air springs (air bags) – rubber and plastic bellows that hold the air pressure.
• Air compressor – pumps air into the system.
• Valve block / manifold – distributes air to each spring.
• Height sensors – tell the control module the ride height.
• Air lines and fittings – connect components.
• Control module – manages the system.

When any part fails, you'll usually see a warning light on the dash, sagging on one corner, or a rough ride.

Key Air Suspension Parts for E60

Air Springs (Rear or Front)

The most common failure point. Rear air springs for E60 are part number 37126765603 (left) and 37126765604 (right). Front air struts are rarer but available. When replacing, you can choose OEM (Continental, Arnott) or aftermarket brands like Dorman or Airmatic. Prices range from $150 to $500 per spring.

Air Compressor

E60 compressors are usually the Wabco 441- or VAD-type. They sit under the vehicle near the spare tire well. A failing compressor may run constantly or not build pressure. Replacement compressors cost $300–$800. Aftermarket units from brands like Air Lift or Viair are available but may require bracket modifications.

Valve Block

The valve block controls air flow to individual springs. On the E60, it's often integrated with the compressor or mounted separately. A faulty valve block can cause uneven ride height. Replacements run $200–$600. OEM is preferred because aftermarket valve blocks sometimes have compatibility issues.

Height Sensors

These plastic arms with a potentiometer measure suspension travel. They are prone to cracking or corrosion. Part numbers: 37146780321 (left rear) and 37146780322 (right rear). Sensors cost $50–$150 each. Aftermarket sensors from Febi or Meyle are reliable alternatives.

Air Lines and Fittings

Air lines can crack or leak at fittings. The E60 uses 4mm nylon air lines. Replacement kits with push-to-connect fittings are available for under $50. It's smart to replace lines when doing other air suspension work.

OEM vs Aftermarket: Which Should You Choose?

OEM (Genuine BMW or brand like Continental, Wabco) offers guaranteed fit and durability. But it's expensive. For critical parts like the compressor and valve block, OEM is recommended to avoid repeated failures.

Aftermarket (e.g., Arnott, Dorman, Air Lift) is cheaper and often comes with warranties. Arnott, for example, offers a lifetime warranty on their air springs. However, some aftermarket compressors are noisy or less efficient. Fitment can vary, especially for valve blocks.

For air springs, well-reviewed aftermarket brands are a good value. For compressors and valve blocks, stick with OEM if budget allows; if not, choose a reputable aftermarket brand with good reviews.

How to Diagnose Air Suspension Problems in E60

Before buying parts, confirm the issue:

• Check for leaks – spray soapy water on air springs and lines while the system is pressurized.
• Listen to the compressor – it should run for about 30–60 seconds when you start the car. If it runs constantly, there's a leak.
• Check the fuse – a blown fuse can disable the system.
• Scan for codes – use a BMW-specific scanner (like INPA or Carly) to read air suspension fault codes.

Common codes:

• 480A (vent valve stuck)
• 4810 (pressure build-up time exceeded)
• 4811 (level control inactive)

Step-by-Step: Replacing Air Springs on an E60

If you're handy with tools, you can replace air springs yourself. Here's a simplified process:

1. Jack up the car and support the rear axle with jack stands.
2. Deflate the system – you can use the deflate function via diagnostic tool, or carefully depress the Schrader valve on the spring.
3. Remove the wheel.
4. Disconnect the air line from the top of the spring (push fitting, press collar to release).
5. Unbolt the spring – two bolts on the top mount and two on the lower control arm.
6. Install the new spring – make sure the orientation matches.
7. Reconnect air line, bolt everything back, and reinflate the system.

For compressors and valve blocks, professional installation is often wiser due to bleeding and coding needs.

Recommended Brands for E60 Air Suspension Parts

• Arnott – known for air springs and compressor rebuild kits. Good warranty.
• Continental – OEM supplier, high quality.
• Wabco – OEM for compressors and valve blocks.
• Dorman – budget-friendly air springs, mixed reviews.
• Febi – reliable for sensors and small parts.
• Air Lift – aftermarket compressors, but may need adapters.

Practical Recommendation for Buying Air Suspension Parts for E60

1. Start with the simplest fix: If you have a leak, replace only the failed air spring or line. Replace both rear springs at the same time – if one leaks, the other isn't far behind.
2. For compressors: If the compressor is weak but not dead, you can replace the piston ring or moisture filter. But a full replacement is more reliable.
3. Do not mix OEM and cheap aftermarket: If you replace one spring with aftermarket and keep the other OEM, ride height may differ. Stick to same brand per axle.
4. Use BMW-specific diagnostic tools to reset the system after repairs. Some aftermarket compressors require recoding.
5. Consider a full air suspension delete kit if you want to convert to coil springs. This is a popular alternative if the system is too costly to fix. Coil conversion kits cost $400–$800 and provide a reliable, if different, ride.

Final Thoughts

Whether you're replacing a failed air spring or upgrading for better performance, choosing the right air suspension parts for E60 requires balancing cost, quality, and your ability to DIY. For most owners, replacing both rear air springs with Arnott or Continental, and using an OEM replacement compressor when needed, is the sweet spot. Always verify part numbers using your VIN, and don't hesitate to replace rubber lines and sensors while you're in there. A well-maintained air suspension keeps the E60 riding like the luxury sedan it was designed to be.