Which Audi A4 diesel engine is the most reliable?

The 2.0 TDI of the B9 generation is generally the most robust diesel in the Audi A4. Earlier B8 2.0 TDI cars were part of the emissions recall, so check that the software update is on record.

Does the Audi A4 2.0 TDI use a timing belt or a chain?

The four-cylinder 2.0 TDI in the Audi A4 uses a timing belt, which must be renewed at Audi's intervals along with the water pump. The V6 3.0 TDI uses chains, which can stretch on high-mileage cars.

Can an Audi A4 diesel enter Spanish low-emission zones?

A Euro 6 diesel A4, registered from 2015 onward, carries the DGT's C label, which most zones admit. Older Euro 4 and Euro 5 diesels carry B and face more restrictions.

Cars

Used diesel Audi A4 in Spain

Found 689 cars

From €1,190 to €52,900, half under €14,990 · Typically 2016 with 169,500 km. The 2.0 TDI powers most diesel A4s, from economical front-wheel-drive saloons to quattro Avants, while the V6 TDI suits drivers covering long distances or towing. Both are at home on Spanish motorways and less happy with short urban hops that clog the particulate filter.