
Audi chassis codes are detailed as follows:1. Production Location:W—Wolfsburg, GermanyL—ChinaT—Hungary2. Headquarters Name:AU—Audi GermanyA1—Audi USARU—Audi HungaryFV—FAW-Volkswagen3. Engine Model:CA—Euro 2 emission standard (1999-2000)C5—First batch of assembled Audi vehicles by FAWNote: CA11 for manual transmission/CA12 for automatic transmissionBA—Euro 3 emission standard engine (2000-2005)C5/3A—Euro 4+OBD emission standard engine4. Transmission Type (domestic models only):Manual/Automatic5. Vehicle Models:A1-8X-A3-8P-B6-B7-8E-B8-8K-A5-8T-C5-A6-4B-C6-A6-4F-C7-A6-A7-4G-D2-A8-4D-D3-A8-4E-D4-A8-4H-R8-42-Q3-8U-Q5-8R-Q7-4L-TT Old—8N-TT New—8J6. Verification Code:Manufacturers use a calculation formula to verify chassis number authenticity.7. Year Codes:A=1980B=1981C=1982D=1983E=1984F=1985G=1986H=1987J=1988K=1989L=1990M=1991N=1992P=1993R=1994S=1995T=1996V=1997W=1998X=1999Y=20001=20012=20023=20034=20045=20056=20067=20078=20089=2009A=2010B=20118. Factory Names:A: Ingolstadt—GermanyN: Neckarsulm—GermanyK: Rüsselsheim—GermanyT: Győr—HungaryD: Czechoslovakia1: Győr—Hungary2: Shanghai—China

I've been repairing Audi cars for many years and have a thorough understanding of those chassis codes and model years. Take the most common A4 as an example: the older chassis code was B5, spanning from the late 1990s to 2001. Then came the B6 from 2001 to 2005, followed by the B7 from 2004 to 2008, and the B8 covering 2008 to 2015. The current B9 has been on sale since 2015. The A6 series follows a similar pattern: C5 represents 1997 to 2004, C6 from 2005 to 2011, C7 from 2011 to 2018, and the current C8 debuted after 2018. The high-end A8 models have even more refined codes: D2 was from the mid-1990s to 2002, D3 ran from 2003 to 2010, D4 from 2010 to 2017, and the new D5 made its appearance in 2017. These codes are extremely useful during repairs, as part replacements must match the correct code to avoid purchasing the wrong components. Additionally, SUVs like the Q5 have codes such as 8R and FY, corresponding to post-2008 and post-2017 models respectively. Overall, Audi's coding system is quite unified, making it easy for owners to identify vehicle age and maintenance needs.

I've been into car modifications for a long time, and Audi's chassis codes are super practical! For the A4 series, I particularly like the B8 generation, which ran from 2008 to 2015, while the B9 is the newer model after 2015. For the A6, the C7 is a classic from 2011 to 2018, and the C8 only came out in recent years. The D3 generation of the A8 is the coolest, spanning from 2003 to 2010, with the D4 being the upgraded version after 2010. There's also the entry-level TT, with the 8N starting in the late 90s and the 8J from 2006 to 2014. These codes aren't randomly assigned—Audi uses letters and numbers to differentiate them, making it easy to remember the years and avoid being scammed in the used car market. I recommend checking the codes carefully when buying older cars, not just relying on the year label. Additionally, the A5 and S series share similar codes, with overlapping years but upgraded safety features. Understanding these codes can make the hobby even more fascinating, saving both money and hassle.

My Audi A4 is from the B9 generation, and I knew the chassis code corresponded to the year when I bought it in 2017. The B9 was produced after 2015, while the B8 covers cars from 2008 to 2015. I've also researched the A6's C7 generation, which lasted from 2011 to 2018. For the A8, the D4 is the model after 2010, with a large year span. These codes are simple and easy to remember, just use them directly when repairing the car. I recommend paying more attention to maintenance records, as precise pairing of codes and years can prevent issues.


