For The Audi A4 2.0 TDI quattro 177 S line is so smooth and powerful that it makes the heavier V6 engine seem rather pointless.

Against It costs a lot more than the other 2.0-litre diesel engines in the A4 range, all of which are up to the job.

Audi A4 Saloon

What Car? says

2 out of 5 stars

The Audi A4 2.0 TDI quattro 177 S line is a lovely car if you can afford it, with strong performance and good refinement. You get those attributes from all the 2.0-litre diesels, though, all of which cost less.

What Car? readers say


Key facts

7.8 secs
Top speed
142 mph
Average mpg
Tank range
792 miles
See all running costs

View the whole Audi A4 Saloon range

Read in full

The full Audi A4 review

Buyer's notes

Target Price team says:

You can expect a four-figure discount on an Audi A4, plus resale values are among the strongest in the class, especially on the smaller-engined diesel versions.

Audi is rightly renowned for its diesel models, and these certainly have the best engines in the range. They make the most sense for company car drivers, but private owners should do their sums carefully before buying one; you’ll need to do a high annual mileage to recoup the difference in list prices (compared with the cheaper petrol models) through the lower fuel bills.

Similarly, we don’t think it’s worth paying for the most expensive models, unless you need their four-wheel drive, since they have the least impressive fuel economy and the lowest resale values.

Reader test team says:

Audi A4 Saloon 3.0 TDI quattro 245 SE 4dr

This my third A4 over a period of 16 years. I planned to buy a 2.0 TDI four years ago but the smooth power of the 3.0 TDI was so impressive and vastly…

Alastair MacGregor

4 out of 5 stars

Audi A4 Saloon 3.0 TDI quattro 245 SE 4dr

Another reviewer has pretty much nailed specifics about this car which I agree completely with so I won't repeat. As far as the diesel A4 range goes…

Mueed Sheikh

4 out of 5 stars

Audi A4 Saloon 3.0 TDI quattro 245 SE 4dr

Despite warnings that it is not as good as a BMW or even a Mondeo to handle, it goes where you point the wheel with no fuss and is fun when hacking…

M Selby

5 out of 5 stars

Audi A4 Saloon 2.0 TDIe S/S 136 S line 4dr

I have run this as a company car for the last six months or so. It is a decent comapetent car which goes and handles resonably well, particularly if…

Peter Malkin

3 out of 5 stars
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