MotorDeets

2018 Audi S5 Cabriolet: Recalls, Problems & MPG

Here are the deets on the 2018 Audi S5 Cabriolet: 2 recalls, 0 owner complaints and up to 23 mpg combined.

2vehicle recalls
0owner complaints
0mention a crash
23best combined mpg
2018 Audi S5 Cabriolet
Photo: Vauxford · CC BY-SA 4.0 · Wikimedia Commons. Representative photo of this generation; trim may differ.

Recalls

2 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.

Airbags, Airbags Vehicle recall #18V325000 · 2018 · 548 vehicles

What's wrong: Volkswagen group of america, Inc. (Volkswagen) is recalling certain Audi s5 cabriolet vehicles equipped with super sport seats. The seat-mounted head/thorax air bag in the front passenger seat May have been folded incorrectly during installation.

Why it matters: If the air bag was not folded correctly during installation, the seat-mounted air bag May deploy improperly in the event of a crash, increasing the risk of injury.

The fix: Audi will notify owners, and dealers will replace the front passenger seat-mounted head/thorax air bag, free of charge. The recall began July 13, 2018.

Airbags, Airbags Vehicle recall #19V547000 · 2019 · 145,337 vehicles

What's wrong: Volkswagen 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 cause the software to misdiagnose a malfunction and disable the passenger air bag.

Why it matters: A disabled passenger air bag increases the risk of injury in the event of a crash.

The fix: Audi will notify owners, and dealers will install cable ties to the harness, free of charge. The recall began September 9, 2019.

Most-reported problems

No owner complaints have been filed with NHTSA for the 2018 Audi S5 Cabriolet so far.

Engines & fuel economy (EPA)

EngineTransmissionDriveCityHwyComb.Fuel
3.0 L 6-cyl turboAutomatic (AM-S8)All-Wheel Drive202923Premium

Want the full repair deets? Get the factory manual.

Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2018 Audi S5 Cabriolet.

eManualOnline Download (PDF), keep forever

Closest thing to the factory manual for most years. Pay once, keep it.

Most $25–$78, one-time
Check 2018 Audi S5 Cabriolet manual
Mitchell 1 DIY Online access, factory-level data

Pro-shop repair procedures, wiring diagrams and TSBs for your exact car.

From $19.99/mo · $39.99/yr
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ALLDATAdiy Online access, factory OEM info

OEM procedures, specs and recall/TSB info, the same source many shops use.

From $19.99/mo · $59.99/yr
Check 2018 Audi S5 Cabriolet manual
Haynes Print book or AllAccess online

Step-by-step photos written from a real teardown. Great for first-timers.

Books ~$30–$40 · AllAccess $34.99/mo
Check 2018 Audi S5 Cabriolet manual

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FAQ

Does the 2018 Audi S5 Cabriolet have any recalls?

Yes. NHTSA lists 2 vehicle recalls for the 2018 Audi S5 Cabriolet. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.

What gas mileage does the 2018 Audi S5 Cabriolet get?

EPA ratings run up to 23 mpg combined (3.0 L, Automatic (AM-S8)), across 1 engine and transmission combos.

Where can I get a 2018 Audi S5 Cabriolet repair manual?

eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.

Other S5 Cabriolet years

20102011201220132017201820192020202120222023