Lambda Sensor location

[GTz]

Looking to clean/replace the sensor, but can't locate Bank 1 in the engine bay on the 1.8TFSI, anyone know whereabouts I can find it?

Thanks

 

[LEE69]

1st one on the downpipe after the turbo

 

[GTz]

1st one on the downpipe after the turbo

Thanks mate, do you think it's likely the PCV Value rather the lambda sensor that needs replacing for a P0171 system to lean code?