2018 Audi S4 for sale

None for sale by us right now: rent one for a week first, or ask us to find one. Rated 9.9 L/100 km combined (EPA). 2 NHTSA recall campaigns.

For sale by us
0
Combined
9.9 L/100 km
Recalls
2

Find me this car

Audi S4 of the 2018 to 2025 generation
Photo: Vauxford, CC BY-SA 4.0, Wikimedia Commons. Representative photo, not one of our cars

For sale

We do not have a 2018 Audi S4 for sale right now. We are a rental company: rent one for a week to try it, or tell us what you want and we look for one for you.

2018 Audi S4 specs

2018 Audi S4 powertrains
Engine3.0L 6-cylinder turbo
DriveAll-wheel drive
Transmission8-speed automatic
FuelPremium gas
City11.5 L/100 km
Highway8.0 L/100 km
Combined9.9 L/100 km
CO₂232 g/km
Cost to drive 100 km$17.33

2018 Audi S4: every figure

2018 Audi S4 figures by powertrain
Displacement3.0 L
Cylinders6
MPG city (US)21
MPG highway (US)30
MPG combined (US)24
MPG combined (Imperial) (converted from the US figure)29
Luggage volume (litres converted from EPA's cubic feet)368 L (13 cu ft)
Fuel cost a year (EPA) (EPA: 15,000 miles at its fuel prices)US$3,400
Fuel cost for 20,000 km (at $1.75 a litre for premium)$3,466

Sources: fuel use, MPG, CO2, electric range, battery, charge time, luggage volume and the annual fuel cost are the US EPA's (fueleconomy.gov). Imperial MPG, litres, inches and pounds are converted from those figures. Figures no free source publishes for this car (power, torque, acceleration, top speed, fuel tank, towing) are left out.

What to check when buying the 2018 Audi S4

  • NHTSA lists 2 recall campaigns for this model year. Ask the seller for proof each one was fixed; a dealer can check it by the VIN.
  • Owners filed 7 complaints with NHTSA, most often about engine (4), power train (1) and service brakes (1). Have those parts checked before you buy.
2018 Audi S4 recall campaigns
CampaignDateComponentSummary
21V8740002021-11-10air bags:sensor:occupant classification:front passengerVolkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant...
19V5470002019-07-24air bags:frontal:passenger side:inflator moduleVolkswagen Group of America, Inc. (Audi) is recalling certain 2018-2019 Audi RS5 Sportback, 2018 S5 Cabriolet, S5 Sportback, S5 Coupe, S4 Sedan, A5 Cabriolet, A5 Sportback, A5 Coupe, and 2017-2018 A4 Sedan and A4 Allroad vehicles. Oxidation on the Passenger Occupant Detection System (PODS) connecting cable may...

Source: NHTSA (US) recall campaigns and owner complaints for this model year.

The 2018 Audi S4: before you buy

We rent cars and sell one only now and then. There is no 2018 Audi S4 for sale by us right now. For anyone shopping for the 2018 Audi S4, here are the facts that matter.

Before you sign for the S4

Owners filed 7 complaints with NHTSA, most often about engine, power train and service brakes; have those parts checked. Ask for the service records and check open recalls by the VIN. Look at the tires, brakes and battery; they are costly to replace. In Ontario, a used car needs a Safety Standards Certificate to be registered.

Under the hood

The 3.0L 6-cylinder turbo, paired with an 8-speed automatic, drives it. It calls for premium gas, which costs more a litre than regular. All-wheel drive sends power to all four wheels, which helps on snow and wet roads; good tires still matter most.

Expect about 30 litres for every 300 km, going by its 9.9 L/100 km combined rating. Expect about $17.33 per 100 km at our price setting. The EPA estimates US$3,400 a year in fuel for 15,000 miles.

Best uses

It suits a stretch between cars, by the week or the month. It suits commuters, couples and business trips.

Size and space

It is a straightforward car to drive, park and live with. For luggage, 368 litres means about two large suitcases and a few soft bags.

Try before you buy

Nothing is charged until we confirm the rental and you approve the offer. A week with the S4 answers more than any brochure. Rent it, live with it for a week, and decide with real experience.

Narrowing it down

Set a budget that includes tax, licensing, insurance and the first set of tires. If you are unsure between two options, rent one of them for a week first. Decide what matters most first: fuel use, space, or the price you can pay.

What it costs to run

The EPA estimates US$3,400 a year in fuel for 15,000 miles at US prices. Ask what a set of tires costs for this trim; sizes and prices vary. Get an insurance quote for this exact model before you buy; rates differ a lot between models.

Send a request

Questions about trying a car first? Ask in your request.

Rent it for a week before you buy

A week of your own driving tells you more than a test drive: the commute, the parking, the fuel. Rent a 2018 Audi S4 from us first.

Rent the 2018 Audi S4Request a rental

Find me this car

Tell us your budget and when you want to buy; we look for a 2018 Audi S4 for you and reply within one business day.

Buying the 2018 Audi S4

Does CarmaCars sell the 2018 Audi S4?

Not right now. CarmaCars rents cars; it sells one only now and then. Tell us what you want and we look for one, or rent one for a week first.

Can I rent a 2018 Audi S4 before I buy one?

Yes. Request it for a week (or longer, up to 365 days) and drive it as your own; nothing is charged until we confirm and you approve.

Does the 2018 Audi S4 have recalls?

NHTSA lists 2 recall campaigns for it, in the table on this page. Ask for proof each was fixed.

What does the 2018 Audi S4 cost in fuel a year?

EPA puts it at US$3,400 a year for 15,000 miles at its fuel prices; at our price setting, 20,000 km cost about $3466.00.

Where do the figures come from?

Fuel use and fuel cost from the US EPA (fueleconomy.gov), dimensions and weight from NHTSA vPIC Canadian specifications, recalls and complaints from NHTSA. We leave out any figure no free source publishes.