Audi A4 Allroad, 8WH (EU)

Manual transmission fluid capacity & service interval

Audi A4 Allroad, 8WH (EU) uses manual transmission fluid with a capacity of 1,8 liters. The data covers 5 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

Type	Specifications
A4 Allroad 40 TDI quattro (140 kW) (2019-2020)	Use: Normal Capacity 1,8 liter Code: 0CX 6/1
A4 Allroad 2.0 TDI quattro (100 kW) (2016-2019)	Use: Normal Capacity 1,8 liter Code: 0CX 6/1
A4 Allroad 2.0 TDI quattro (110 kW) (2016-2019)	Use: Normal Capacity 1,8 liter Code: 0CX 6/1
A4 Allroad 2.0 TDI quattro (120 kW) (2016-2019)	Use: Normal Capacity 1,8 liter Code: 0CX 6/1
A4 Allroad 2.0 TDI quattro (140 kW) (2016-2019)	Use: Normal Capacity 1,8 liter Code: 0CX 6/1

All five configurations of the Audi A4 Allroad 8WH (EU) with manual transmission share an identical fluid capacity of 1.8 liters, spanning both the 2.0 TDI quattro variants from 2016-2019 and the 40 TDI quattro 140 kW variant from 2019-2020.
A capacity figure of 1.8 liters for a manual transmission is consistent with a service fill level, meaning the amount of fluid required during a routine fluid change rather than a full overhaul or dry-fill procedure.
The four 2.0 TDI quattro variants from 2016-2019 cover a power output range from 100 kW to 140 kW, yet all carry the same 1.8-liter manual transmission fluid capacity, indicating the gearbox unit does not vary in fluid volume across those output levels.
The 40 TDI quattro 140 kW, which shares its power output with the 2.0 TDI quattro 140 kW, carries the same 1.8-liter capacity, suggesting continuity in the manual transmission unit between the pre-2019 and post-2019 naming conventions Audi applied to the lineup.
All specifications are listed under normal use conditions, which in fluid service contexts generally refers to standard driving patterns as opposed to severe or heavy-duty operating conditions such as frequent towing or extreme temperatures.