Does anyone know how to replace the vacuum reservoir or where abouts it is on the car? 2.0 tdi 2009 140

Are you sure it's the reservoir and not the pipe? 

Unsure tbf been told possibly both 

Or one or the other 

From looking online I'd suspect more the pipe first. 

Also I r just found this workshop diagram which should help. The link gives a full breakdown. 

https://workshop-manuals.com/audi/a3_mk2/power_unit/4-cylinder_tdi_unit_injector_engine_(2.0_ltr._4-valve)_mechanics/exhaust_system/exhaust_gas_recirculation_system_vehicles_with_engine_codes_azv_bkd/connection_diagram_for_vacuum_lines/

I’m not sure the diagram is the same as my engine 

Can’t seem to find anything on google about where it is on same engine bay as mine and tried to look in same place as diagram and don’t think it’s there

Edited June 10, 2025Jun 10 by JJdun

Darn. I'll take another look online to see what more I can find 🙂

Thank you appreciate it 

Not sure if these threads will help: 

https://forums.tdiclub.com/index.php?threads/vacuum-routing-refresher.257619/ 

https://forums.tdiclub.com/index.php?threads/volkswagen-tdi-alh-vacuum-diagrams-stock-modified.290286/ 

https://www.audizine.com/forum/showthread.php/656655-Vacuum-Hose-Routing-Diagram 

https://www.audiworld.com/forums/a8-s8-d3-platform-discussion-60/need-vacuum-hose-diagram-2784211/

A vacuum reservoir of the size shown would be hard to miss. If you don't see one perhaps it's because you don't have one. I didn't on mine.

Ah yes possibly thank you for that