Product Overview
OE Specification Air Spring (Air Bag) for Audi A6 C7 Rear Left Position (Air Spring Only, Without Shock Absorber Core)
Product Description
This air spring is designed for the rear air suspension system of the Audi A6 C7 chassis, specifically for the rear left (driver's side rear) position. This product is an air spring only and does not include a shock absorber core. It is suitable for repair scenarios where the original rear shock absorber core is still fully functional but the air spring has aged, cracked, or failed.
As a representative of Audi's executive sedans, the C7 chassis A6 balances comfort with handling stability in its rear air suspension design. The rear left air spring is located on the driver's side rear and must withstand the driver's long-term load as well as vehicle height adjustment needs under different load conditions. Constructed with high-strength rubber composite material and aluminum alloy upper/lower mounts, this air spring works in coordination with the rear shock absorber core, stabilizer bar and height sensor to form the rear portion of the Audi adaptive air suspension system. This product features automatic self-leveling functionality.
The Audi A6 C7 chassis was produced between 2012 and 2018, and rear air spring failure is a common repair item on this model, especially as vehicles accumulate higher mileage or age. This product is manufactured to original equipment structural dimensions, with air bag diameter, upper and lower mounting hole positions, air line connector specifications, and seal ring dimensions all consistent with original factory specifications, allowing direct replacement of the old air spring without any modifications. The rear left OE part number 4G0616001T pairs with the rear right 4G0616002T.
Warehouse & Workshop
Keep dry, clean and handle with care.
![Mercedes-Benz E-Class rear right air spring product image]()
Packing & Delivery
Professional, environmentally friendly, and efficient packaging services ensure the safety of your goods during transit.
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Frequently Asked Questions
Q1: How can I tell whether the Audi A6 C7 rear left air spring is already damaged?
Common signs of damage include: the left rear body side noticeably sinking after the vehicle sits overnight (lower than the right side), the air compressor running frequently after starting (every few minutes), a "hissing" noise from the left rear wheel when going over bumps, and an "Air Suspension Fault" or "Chassis System Fault" warning on the dashboard. On the C7 chassis, air spring leaks commonly occur at the folds of the air bag or at the connection between the bottom and the aluminum seat. A simple self-check method: after stopping the vehicle and turning off the engine, spray soapy water on the air spring surface and observe if bubbles appear.
Q2: Which Audi models does OE 4G0616001T fit?
This product is suitable for the rear left position on Audi C7 chassis (2012-2018), including: A6 (4G2/4GC), A6 Quattro, S6, A7 (4GA/4GF), S7, RS7, as well as A6 allroad Quattro (4GH) and A6 Avant. Before purchasing, please confirm that your vehicle is factory-equipped with an air suspension system.
Q3: Can pre-facelift and post-facelift C7 chassis air springs be used interchangeably?
Yes, they are interchangeable. The C7 chassis received a facelift in 2014 (C7.5) with cosmetic and interior changes, but the rear air suspension structure and air spring mounting dimensions remained unchanged. OE 4G0616001T is suitable for all C7 model years (2012-2018), including both pre-facelift and post-facelift versions.
Q4: Is it acceptable to replace only the air spring and keep the old shock absorber core?
Yes, they can be used together, but two conditions must be met: First, the original shock absorber core must be in good condition - no oil leakage, no damping degradation, no abnormal noise. Second, the shock absorber core should generally have no more than 100,000 km of service. C7 chassis vehicles are generally older, and the rear shock absorber core oil seal aging risk is high. It is recommended to inspect the shock absorber core condition when replacing the air spring.
Q5: What accessories are recommended to replace at the same time as the rear left air spring?
It is recommended to replace the following accessories simultaneously: the air spring upper cap seal ring (may deform after removal), the air line connector clamp (original clamp loses clamping force after removal), and the buffer pad between the air spring and shock absorber core (may harden after long-term compression). In addition, check the left rear height sensor link for integrity, check whether the compressor dryer is saturated, and check whether the distribution valve is functioning properly. Compressor dryer aging is a common issue on the C7 chassis, so it is recommended to inspect it as well.
Q6: After replacing the air spring, the rear axle feels stiffer or bumpier than before. Is this normal?
Yes, this is normal. Old air springs may have hardened rubber and reduced elasticity even before leaking. New air springs restore factory elasticity, which may initially feel firmer as the filtering effect improves. The A6 factory rear axle tuning is biased toward comfort, so the "stiffer" feel of the new air spring will not be too pronounced. Typically, after driving 300-500 km, the air spring will gradually adapt to the vehicle load and the ride feel will become normal. If the rear axle still feels noticeably bumpy after more than 800 km, check whether the installation is correct or whether the correct model was matched.
Q7: There is a "creaking" or "squeaking" noise from the left rear wheel area while driving after air spring replacement. What is the cause?
This type of noise requires careful diagnosis on the C7 chassis. Common causes include: 1) The bolts connecting the air spring upper cap to the body are not tightened to the specified torque; 2) The buffer pad between the air spring and shock absorber core is installed incorrectly or missing; 3) The left rear stabilizer bar link ball joint is aged, producing noise when working with the new air spring; 4) The height sensor link was bent or stuck during installation; 5) The parking brake cable is pinched between the air spring and the body during installation. The C7 chassis is sensitive to chassis noises, so it is recommended to first check bolt torque and the buffer pad, then inspect other accessories if the noise persists.
Q8: Is a wheel alignment (chassis angle calibration) necessary after replacing the Audi A6 C7 rear left air spring?
Rear axle alignment is recommended. The C7 chassis A6 rear suspension is a multi-link design. Replacing the air spring involves changes in rear axle ride height, and the installation process may involve disconnecting the lower control arm from the subframe, which can affect rear wheel toe and camber after installation. Common consequences of skipping wheel alignment include: uneven rear tire wear, unstable rear end at high speeds, and the need for frequent steering corrections when driving straight. It is recommended to drive 30-50 km after replacement to allow the suspension to settle naturally before performing a rear wheel alignment.
Q9: What is the relationship between OE 4G0616001T and 4G0616002T?
4G0616001T is the rear left (driver's side) air spring, and 4G0616002T is the rear right (passenger side) air spring. They are a left-right pair. The left and right air springs are structurally symmetrical but have different part numbers and are not interchangeable. Replacing as a pair is recommended for balanced suspension performance.
Q10: Is the C7 rear air spring suitable for the earlier C6 chassis?
No, it is not suitable. The C6 chassis (2004-2011) has different rear air spring mounting dimensions and air line connector specifications. Parts are not interchangeable with the C7. Before purchasing, please confirm that your vehicle is the C7 chassis (2012-2018 model years), which can be verified via VIN code or vehicle registration information.
Q11: Why does the air compressor run frequently after replacing the rear left air spring?
If the air compressor still runs frequently after installing a new air spring, possible causes include: 1) Height calibration has not been performed, and the system is still operating based on the old air spring height parameters; 2) The compressor dryer is saturated, affecting inflation efficiency (a common issue on the C7 chassis); 3) The compressor itself is aged, slowing down inflation speed; 4) The left air spring still has a leak after installation (air line connector or seal ring issue); 5) The distribution valve has an internal leak. It is recommended to first perform height calibration using a diagnostic tool. If the problem persists, check the compressor dryer and distribution valve condition.
Q12: Should the C7 rear air springs be replaced as a pair?
Replacing as a pair is recommended. Although it is possible to replace only the damaged side, both air springs have been in service for the same number of years and have similar rubber aging. Failure on one side often indicates the other side is also near the end of its service life. C7 chassis vehicles are generally older, and replacing as a pair avoids the other side failing in the short term and ensures balanced left-right suspension support. If you plan to keep the vehicle for more than 2 years, replacing as a pair is a more economical choice.
Q13: How can I confirm whether my Audi A6 C7 is equipped with air suspension?
Check using these methods: 1) Check the MMI system for an "Air Suspension" or "Ride Height Adjustment" option; 2) Look near the rear axle shock absorber - there should be a rubber air bag (black convoluted bellows); 3) Listen for the air compressor running after vehicle startup; 4) Check near the spare tire well in the trunk for the compressor and distribution valve. If none of these are present, your vehicle has conventional coil spring suspension and this product is not suitable.
Q14: Are the C7 allroad and standard A6 rear air springs interchangeable?
Yes, they are interchangeable. The A6 allroad (C7) uses the same air suspension system, and the rear air spring mounting dimensions, air line connectors, and load capacity are identical to the standard A6. OE 4G0616001T is suitable for both A6 allroad and standard A6. When purchasing, you only need to confirm that your vehicle is the C7 chassis and the rear left position.
