Question 1

How much road tax does an Audi A4 TDI pay in Luxembourg?

Accepted Answer

Its CO₂ figure × 0.9 × a band factor of 0.5 up to 90 g/km and 0.1 more per 10 g, which is half as much again as a petrol A4 with the same CO₂. A car registered from 2021 is taxed on its WLTP figure.

Question 2

What should I check on an Audi A4 2.0 TDI built before 2016?

Accepted Answer

Whether its EA189 engine received the software update from the 2015 diesel emissions recall; an Audi garage can confirm it from the chassis number. Also ask about the particulate filter, which clogs on cars used mainly for short trips.

Question 3

Does a used Audi A4 TDI need AdBlue?

Accepted Answer

Many B9 TDIs clean their exhaust with AdBlue, from a separate tank topped up between services. Check that no warning shows, as a fault in the system can stop the engine restarting once its countdown ends.

Question 4

Is an Audi A4 3.0 TDI worth it over the 2.0 TDI?

Accepted Answer

For long motorway runs and towing, the V6 is smoother and less stressed, and it often comes with quattro. It costs more to run, though, with a higher CO₂ figure and therefore higher road tax.

Used Audi A4 TDI diesel cars in Luxembourg

Audi A4 S-line

Audi A4

Audi A4 A4 Avant 2.7 TDI DPF multitronic Ambiente

Audi A4 A4 2.0 TDI ultra S tronic design

Audi A4 3.0 tdi s-line

Audi A4 Audi A4- 30TDI Avant Advanced // Garantie 12 Mois✅

Audi A4 3x Sline Sportsback

Audi A4 S-line

Audi A4 3.0 TDI Quattro 200 KW 272ch. auto Pano, Matrix, MMI, AHK

Audi A4 Avant 2.0 TDI DPF Attraction