2× Rear Air Spring Bags & Air Compressor Pump – Mercedes Viano / Vito W639

The 2× Rear Air Spring Bags + Air Compressor Pump kit is a complete air suspension solution for the Mercedes-Benz Viano and Vito (W639) with factory fitted air suspension. It includes a pair of rear air spring bags and a compressor pump designed to replace worn or failed suspension components. This set restores proper ride height, load-level control and vehicle handling by ensuring the rear suspension system maintains correct pressure and support under varying load conditions. It’s an ideal upgrade when original air springs or the compressor begin to fail or leak.

OEM Number: 

Air Suspension Springs:

6393280101, A6393280101, 639 328 01 01, A 639 328 01 01

6393280201, A6393280201, 639 328 02 01, A 639 328 02 01

6393280301, A6393280301, 639 328 03 01, A 639 328 03 01

Air Suspension Compressor Pump:

6393200204, A6393200204, 639 320 02 04, A 639 320 02 04

6393200404, A6393200404, 639 320 04 04, A 639 320 04 04

Quantity

Spring Bags: Pair 

Air Suspension Compressor Pump: 1

Our SKU: TMA6393200204+TM6393280101x2_94

All our sets of 2 Rear Air Spring Bags + Air Compressor Pump are OEM quality and reliable after-market car parts. This Set Of 2 Rear Air Spring Bags + Air Compressor Pump is specifically compatible with Mercedes-Benz: Viano, Vito, Vito / Mixto.

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 with your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Key Benefits

Complete Rear Suspension Renewal
This kit replaces both rear air spring bags and the air suspension compressor pump as a matched set, ensuring balanced ride height and stable suspension performance.

Direct OEM-Equivalent Fitment
Supplied to match original Mercedes-Benz part references such as 6393280101, 6393280201, 6393280301 (spring bags) and 6393200204, 6393200404 (compressor pump), for a direct, bolt-on installation without modification.

Restores Ride Comfort & Stability
Worn air springs or a weak compressor often lead to sagging rear end, uneven stance, or a bouncy ride. Replacing these parts improves load-carrying ability, ride comfort and cornering stability.

Supports Vehicle Load Levels
Ideal for vans and MPVs that carry passengers or cargo frequently — the air suspension system automatically adjusts rear ride height using the compressor, helping maintain level stance and reducing stress on chassis and tyres.

Reliable Aftermarket Quality
Aftermarket components like this set are engineered for durability and long service life while offering significant savings over some OEM alternatives. They’re suitable for both professional workshops and experienced DIY servicing projects.

Frequently Asked Questions (FAQs)

Q: What’s included in this air suspension kit?
A: This kit includes two rear air spring bags and an air suspension compressor pump, enabling a comprehensive rear air suspension refresh.

Q: What does an air suspension compressor do?
A: The compressor pump generates and regulates compressed air for the air springs, helping maintain correct ride height and adjust suspension stiffness. If the compressor fails, the suspension may sag or fail to self-level.

Q: What are common symptoms of failing rear air suspension?
A: Sagging or uneven ride height at the rear, a bouncy or harsh ride, audible compressor noises, or an air suspension warning light on the dashboard often indicate worn air springs or a weak compressor.

Q: Which Mercedes models does this fit?
A: This kit is specifically designed for Mercedes-Benz Viano and Vito (W639) models equipped with rear air suspension, covering various diesel and petrol engine variants from 2003 onwards. Always confirm compatibility with your VIN or part number.

Q: Should I replace the compressor and springs together?
A: Yes — replacing worn rear air springs without addressing a failing compressor (or vice versa) may lead to repeated failures. A complete kit ensures matched performance and greater long-term reliability.