Used Audi A6 Rear Cross Member

The C6 A6 ran from 2004 to 2011 and the C7 from 2011 to 2018, and these are entirely different platforms, so the rear cross member from a C6 will not fit a C7. These generations use different underbody architecture and the mounting points, geometry, and dimensions are incompatible. Always source a cross member from the correct generation for your car.

Yes, body style is the most important factor for a rear cross member on the A6 — the Saloon, Avant (estate), and Allroad each have distinct rear underbody structures with different cross member designs. A cross member from a C7 Avant, for example, will not be a straight swap onto a C7 Saloon. Always tell the breaker whether your car is a Saloon, Avant, or Allroad when requesting a quote.

No, trim level does not affect rear cross member fitment on the A6 — SE, S Line, Black Edition, and Sport all share the same rear underbody structure within a given generation and body style. The cross member is a structural component, not a cosmetic one, so the differences between these trims are limited to badges, bumper styling, and interior spec. Source by generation, body style, and year and you won't need to worry about trim.

Both a 2012 and a 2014 A6 fall within the C7 generation (2011–2018), so they share the same platform and a cross member from a 2012 car is likely compatible, provided the body style matches. The C7 received a facelift in 2014 which brought some exterior and interior changes, but structural underbody components such as the rear cross member were not typically revised. Confirm with the breaker by quoting both registration plates to make sure no pressing changes affect your specific cars.

No — the C5 A6 (1997–2004) and the C6 A6 (2004–2011) are separate generations built on different platforms, and their rear underbody components are not interchangeable. The cross member dimensions, subframe mounting points, and overall rear architecture differ significantly between these two generations. Make sure you source a cross member that matches your car's generation and body style exactly.

It can matter, as the Allroad is a raised, all-wheel-drive variant with different rear suspension geometry and underbody reinforcement compared with the standard Avant. Whether this results in a different cross member pressing depends on the specific generation, and this is not something to assume either way. Confirm with the breaker by providing both registration numbers so they can check the parts match before you commit.