Service intervals. Model: Audi A6 Quattro 2.0 TDI A6

Model: Audi A6 Quattro 2.0 TDI A6, Date of production: 14.11.2019, Year: 2020, Sales type: 4A2BIY, Engine Code: DFBA, Transmission Code: TWZ  (0CJ), Axle drive: 7A -- Equipment FZ,  2L
 

Front Break Pads:  0986424432  --- BOSCH E9-90R-02A1425/4523
Front Break Sensor: 407W0186  --- RIDEX 407W0186
Rear Break Pads:  0986494833 --- BOSCH E9 90R- 02A0904/4422
Rear Break Sensor: 638953 --- https://www.autodoc.co.uk/topran/14567610
Cabin Filter: 4M0819439A or 8W0819439A - https://www.ebay.co.uk/itm/405843713587
Air Filter: 4K0133844A 4KD133844A 4K0133844E --- https://www.ebay.co.uk/itm/277409735248
Fuel Filter: Bosch 8K0127400 8K0127400A 8T0127401A --- https://www.ebay.co.uk/itm/336135172644
Oil Filter: 05L115466 05L115562 --- 

Transmission Service
1. Gearbox (ATF Side) --- 305952805432 --- S-Tronic Service Kit
    This fluid (ATF) operates the hydraulics and dual-clutch. It requires a service every 38k–40k miles. 
    Unlike the dealer's "drain and fill," this kit includes a sump gasket and internal screen filters for a deeper clean.

2. Manual Side (MTF) --- 305531289970 --- Transmission Gear Oil    
    Your 0CJ gearbox is a "Dual-Sump" design. This oil is separate from the ATF and lubricates the mechanical gears (cogs).
    While often called "lifetime" by dealers, changing it prevents metal-on-metal wear over time.

3. Transfer Case --- 305064578382 --- AWD Clutch Fluid     
    This is for the Quattro Ultra coupling at the back of the gearbox. It is a wet clutch that connects the rear wheels. 
    Old fluid here causes "Quattro Rumble" (vibration/judder when turning).

4. Rear Axle --- 305599145605 --- Rear Differential Oil
    This is the final drive fluid for the rear wheels. It protects the ring and pinion gears. 
    It is exposed to the most torque and should be refreshed to ensure the differential remains silent and smooth.