The Audi A6 Allroad Quattro C7 (4G), built from 2012 to 2018, is a popular used estate car in Spain, valued for its quattro all-wheel drive and adjustable ride height. That adjustable height comes from air suspension, and as these cars get older, the air suspension parts are among the most common repairs. Dealer prices for genuine parts can be high, which is why many owners look at aftermarket specialists.
Aerosus is an air suspension specialist that sells parts across Europe, including through its Spanish site, aerosus.es. In this guide, we explain what each part of the A6 Allroad C7 system does and list the prices displayed on aerosus.es on 4 November 2026. Several parts were reduced at the time of checking. Prices and offers can change, and you should always confirm fitment using your vehicle details or the OEM number before ordering.
See A6 Allroad C7 Parts at Aerosus
In this guide
A6 Allroad C7 Parts and Prices Compared
| Part | Position | Price displayed on aerosus.es (4 Nov 2026) |
|---|---|---|
| Air strut with CDC | Front, left or right | 461.34 EUR |
| Air spring | Front | 234.45 EUR |
| Air spring | Rear left | 130.25 EUR (was 175.63) |
| Air spring | Rear right | 130.25 EUR (was 175.63) |
| Shock absorber with CDC | Rear | 200.84 EUR (was 251.26) |
| Rear shock absorber assembly with CDC (Avant) | Rear | 234.45 EUR (was 335.29) |
| Air suspension compressor (pump) | Under the car | 247.06 EUR (was 301.68) |
| Compressor with bracket (A6/S6 Allroad) | Under the car | 366.39 EUR (was 385.71) |
| Valve block | Under the car | 113.45 EUR (was 167.23) |
The category page lists a two-year warranty for the parts shown. Aerosus Spain also advertises free standard delivery across Spain on its site.
How the System Works
Instead of steel coil springs, the A6 Allroad C7 uses air springs filled with compressed air. A compressor supplies the air, and a valve block distributes it to each corner. At the front, the air spring is combined with the shock absorber in a single air strut. At the rear, the air springs and shock absorbers are separate parts. The CDC label on the shock absorbers stands for Continuous Damping Control, Audi’s electronically adjustable damping.
Because the parts work together, one failure often puts extra strain on another. A leaking air spring, for example, makes the compressor run more often, which can shorten its life. That is why it is worth finding the cause of a problem rather than only replacing the part that failed last.
Front Air Struts and Springs
The front air strut is the most expensive single part in our comparison, at 461.34 EUR for one side on aerosus.es. It includes the air spring and the CDC shock absorber. Aerosus also lists the front air spring on its own at 234.45 EUR. Common signs of a front problem include the car sitting lower on one front corner after being parked, or a hissing sound near the wheel arch.
Rear Air Springs and Shock Absorbers
The rear air springs were reduced at the time of checking, to 130.25 EUR each for left and right, down from 175.63 EUR. The rear CDC shock absorber was listed at 200.84 EUR, reduced from 251.26 EUR, and a complete rear shock absorber assembly with CDC for the Avant was 234.45 EUR, down from 335.29 EUR. Owners usually notice rear problems when the back of the car sags overnight or the ride becomes bouncy.
Compressor and Valve Block
If the system is slow to raise the car or shows a suspension warning, the compressor may be the cause. Aerosus lists a compressor for the A6 Allroad C7 at 247.06 EUR, reduced from 301.68 EUR, and a version supplied with its bracket for the A6 and S6 Allroad at 366.39 EUR. The valve block, which controls the air flow to each spring, was listed at 113.45 EUR, down from 167.23 EUR.
Common Warning Signs
- The car sits lower on one corner after being parked overnight.
- A suspension warning light or message appears on the dashboard.
- The compressor runs for a long time or more often than usual.
- You hear a hissing sound near a wheel, which can point to an air leak.
- The ride feels bouncy or unsettled over bumps, which can point to worn shock absorbers.
These signs do not identify the faulty part on their own. A leak test or a diagnostic scan at a workshop will usually show whether the problem is an air spring, a line, the valve block or the compressor. Knowing the exact cause helps you order only the parts you need, which matters when single parts cost a few hundred euros.
Should You Replace Parts in Pairs?
Many mechanics recommend replacing air springs and shock absorbers in pairs on the same axle, so that both sides wear evenly and the car stays level. With the rear air springs reduced to 130.25 EUR each, a pair costs about 260.50 EUR at the displayed prices, before fitting. If one side has failed because of age, the other side is often not far behind, so replacing both at the same time can also save on labour costs.
Tips Before You Order
- Check your car’s platform, model edition and year; the parts above are listed for the A6 Allroad Quattro C7 (4G), 2012-2018.
- Compare the OEM number of your old part with the one on the product page.
- Check whether you need the left or right side, front or rear.
- Have a specialist confirm the cause of the fault before replacing parts.
- Remember that fitting air suspension parts usually requires a workshop and the right tools.
Our Verdict
For A6 Allroad C7 owners facing an air suspension repair, Aerosus Spain offers a full range of parts, from the 113.45 EUR valve block to the 461.34 EUR front air strut, with several reductions at the time of checking. The reduced rear air springs and the compressor are especially good value right now. Check the current prices and fitment details on aerosus.es before you buy.
