4G0616039N 4H0616039 4H0616040 Front Air Suspension Shock Absorber Assembly Audi A6 A7 A8

Q1: Which OE number is for which side and which car? 4G0616039N —  for Audi A6 C7 / A7 (updated revision). 4H0616040 and 4H0616039 — for Audi A8 D4. Match the number on your original part.

Q2: Which vehicles does this fit? Audi A6 (C7), A7 (C7) and A8 (D4) models equipped with front adaptive air suspension. Vehicles with conventional coil springs do NOT fit. Confirm model, year and drive type by VIN.

Q3: How do I confirm fitment for my car? Check the part number by VIN in an Audi EPC catalog, or read the part number on the original unit and confirm it matches one of the numbers above for the correct side. Provide the VIN to the seller before ordering.

Q4: Is this the complete strut assembly? Yes. It is the complete front air suspension strut — air spring bellows and shock absorber integrated into one unit, with the air fitting ready to connect. Direct replacement of the original strut.

Q5: Do I need to replace both front sides at the same time? Replacing as a same-axle pair is strongly recommended. An old unit on the other side may cause uneven ride height and leveling behavior, affecting handling and comfort.

Q6: My car has CDC (continuous damping control) — does this fit? Vehicles with CDC use struts with an electronic damping valve. Confirm the version on your original unit and check by VIN before ordering, so you receive the correct CDC / non-CDC variant.

Q7: How do I know the front air strut is failing? Common symptoms: ① the front of the car sags or settles overnight; ② the air compressor runs frequently or for long periods; ③ a ride-height / suspension warning light on the dash; ④ knocking or harshness from the front suspension while driving. Replace as soon as possible once these appear.

Q8: What should I pay attention to during installation? ① Jack up the vehicle and release the air suspension system pressure per the workshop manual; ② disconnect the air line carefully and protect the connector from dirt; ③ mount the new unit and reconnect the air line; ④ start the car and perform a ride-height reset / system initialization; ⑤ verify left/right height is even and there is no leak before a road test.

Q9: What is the warranty policy? What about shipping damage? 18-month warranty under normal use. For shipping damage, inspect the package within 48 hours of receipt and send photos/video — the seller will arrange a replacement.

Q10: How long do these units last, and can I maintain them? Service life depends on road conditions and climate; keeping the bellows clean and checking for cracks during routine service helps extend life. If the bellows crack or leak, replacing the complete unit is the most reliable and cost-effective solution.