Tiguan Audi A3 Exhaust Gas Sensor B4 DPF CHECK FIRST 03L906088BH New Genuine VW

This is a Exhaust Gas Temp Sender (2 pin Brown) Before DPF

Please note, there are three or more of these exhaust gas temp sensors fitted to each car, one before the turbo, one after the turbo (but before the DPF filter) and one after the DPF filter. Also, most cars have lambda probes fitted too, so please ensure you know exactly which item you want to order.

The diagram below shows the layout on most cars, but this can differ and these are a minefield to get right, so it's essential that you have a diagnostic printout from the car and know which item(s) you need to replace before ordering from us.

1 - engine
2 - Turbocharger
3 - Catalyst / Catalytic convertor
4 - DPF pressure difference sensor
5 - DPF unit
6 - Exhaust gas temperature sensor 1 (before turbocharger but normally screwed into the turbo housing)
7 - Can be either a lambda probe or DPF pressure sensor depending on exact model
8 - Exhaust gas temperature sensor 2 (after turbocharger and before DPF filter unit)
9 - Exhaust gas temperature sensor 3 (after DPF filter unit)




Please ensure you have had your car professionally diagnosed and have checked that this item is software compatible before ordering as this is a software specific electrical item & will arrive in a security sealed Bag which once opened will render the item exempt from returns. This part will need to be fitted by a professional workshop.



Fitment Guide