Reconditioned Audi A5 Gearbox

16 engine codes for the Audi A5: which manual gearbox matches your engine?

On the Audi A5 (2007–2019), the gearbox you need depends directly on the engine code stamped on the block, not on the engine capacity shown in the spec sheet. The 16 engine codes listed in this collection are spread across four engine variants — 2.0 TDI, 3.0 TDI, 2.0 TFSI and 1.8 TFSI — and all are fitted with a 6-speed manual gearbox, yet the gearbox references are not identical from one engine code to another, even where the engine capacity is the same.

Diesel: five codes for the 2.0 TDI, three for the 3.0 TDI

The 2.0 TDI is the most widely represented engine, with five distinct codes: CAGA, CAHA, CGLC, CJCA and CMFA. These codes reflect power output and generation changes spread across the full production run of the model; two A5 2.0 TDI vehicles from different years may therefore require different gearboxes. The 3.0 TDI covers three codes — CCWA, CDUC and CKVC — found mainly in the top-of-the-range versions and quattro four-wheel-drive body styles, a factor that also affects the exact gearbox reference.

Petrol: eight codes split between the 2.0 TFSI and 1.8 TFSI

On the petrol side, the 2.0 TFSI covers four codes — CAEB, CDNB, CDNC and CYRB — and the 1.8 TFSI also has four: CABB, CDHB, CJEB and CJED. With these engines, the engine code remains the essential starting point to avoid any confusion between gearboxes that share the same casing but differ in their gear ratios or clutch housing. Checking the engine code before placing an order is all the more important given that the A5 underwent several facelifts between 2007 and 2019, with mechanical changes that do not always align with the commercial model year.