Audi›S5 Sportback›2021›Overview/audi/s5-sportback/2021/base/

2021 Audi S5 Sportback

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 S5 Sportback.

Transmission Automatic (S8)

The 2021 Audi S5 Sportback is the Sportback-bodied S5, paired with an automatic (S8) transmission and EPA-rated at 20/28/23 mpg, and its engine oil service calls for 7.7 qt of 0W-20. In the 2018–2021 complaint history, the 2021 model year sits at the bottom of the range with just one owner complaint—down from the 2018 peak of 26—with that single report falling under Suspension and five recalls logged overall. That makes the 2021 S5 Sportback the least complained-about year in this four-year span, though the five recalls still merit a close check of campaign status.

Model year202520242023202220212020

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity7.7 qtOEM · verified
Engine oil type0W-20OEM · verified
Lug nut torque89 ft-lbsOEM · verified
EPA fuel economy20/28/23 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI Refer to the appropriate service information for options and battery usage. battery, OE oil filter 06M115441G. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI Refer to the appropriate service information for options and battery usage.OEM · verified
Tire size245/40R18/XL 97HOEM · verified
Wheel / rim8.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter06M115441G alt 06M198405F
Engine air filter8W0133843
Spark plug06M905606F
Battery000915089BD alt 000915089AD
Front wiper blades8W1998002
Thermostat06M121688 alt 06M121115N
Cabin air filter4M0819439C

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S8)

Dimensions & weight NHTSA vPIC

Overall length188.2 in
Overall width72.4 in
Overall height54.3 in
Wheelbase111.4 in
Curb weight3990 lb
Track (front / rear)62.6 / 61.8 in
Weight distribution (front / rear)57/43

Ratings & economy EPA / vPIC

EPA city / highway / combined20 / 28 / 23 mpg
DrivetrainAll-Wheel Drive
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 7.7 qt of 0W-20 engine oil, DOT 4 brake fluid. Torque lug nuts to 89 ft-lbs, the oil drain plug to Use new seal: 22.0 ft-lbs. The firing order is 1-4-3-6-2-5.

Lubricants & capacities

Automatic Transmission FluidAudi P/N G 060 162 A2
Automatic Transmission Fluid Capacity9.0 qt
Brake FluidDOT 4
Clutch FluidDOT 4
Engine CoolantAudi Coolant G13-TL-VW774J
Engine Coolant Capacity10.5 qt
Engine Oil0W-20 · Synthetic
Engine Oil Capacity7.7 qt

Engine torques

Cylinder Head InstructionsOnly use new bolts.
Engine Oil Pan Drain PlugUse new seal: 22.0 ft-lbs

Chassis torques

Lug Nuts89 ft-lbs

Ignition

Cylinder Firing Order1-4-3-6-2-5

Battery & A/C

RefrigerantR1234yf
Refrigerant Capacity1.12-1.18 lbs
Oil Capacity3.50-4.10 oz

Service checks

Fuel Pump Pressure Minimum87.0 psi
Fuel Pump Pressure Maximum116.0 psi
Residual Pressure43.45 psi

Brakes

Brake Caliper Bolt to Carrier TorqueFront: 1LA
ABS Sensor Torque6.4
Minimum Pad Thickness0.079" in
Vented Rotor Minimum Thickness for ReplacementFront: 1LA; Rear: 1KD

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 1 stages
1Completely install all bolts by hand. Step 222 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
111.0 ft. lbs., Step 2: 22.011 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 10,000 mi; spark plugs every 40,000 mi.

Every 10,000 miBrake Linings (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire Repair Kit Sealant (inspect)
Every 20,000 miBody Water Drains (inspect) · Brake Line (inspect) · Cabin Air Filter (replace) · Door Hinge (lubricate) · Drive Axle Assembly (inspect) · Engine Assembly (leak inspection)
Every 40,000 miSpark Plugs (replace)
Every 60,000 miEngine Air Filter Element (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

From 2018 to 2021 the Audi S5 Sportback’s complaint count fell sharply from 26 in 2018 to just 1 in 2021, after a brief rise to 25 in 2020. Recalls showed a steady upward trend, increasing from 3 in 2018 to 4 in both 2019 and 2020, then reaching 5 in the 2021 model year. Technical service bulletins grew each year, rising from 807 in 2018 to 954 in 2021, while no investigations were recorded in any year. The 2021 year’s sole complaint concerned the suspension, with zero crash‑ or fire‑related reports. Given the exceptionally low owner‑reported complaints despite the highest recall count and increasing TSBs, the 2021 Audi S5 Sportback represents a favorable purchase candidate, provided any outstanding recalls are addressed.

5
Open recalls
NHTSA campaigns
954
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
1
Owner complaints
0 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent
’18’19’20’21

Owner complaints filed with NHTSA, by component

All 1 complaints on record, top 1 components.

Suspension1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 954 bulletins on record with NHTSA.

BulletinDateComponentSummary
TSB_2076404_82026-06-29Unknown Or OtherThis bulletin provides a deployment overview for customer service packages MLB and MQB…
TSB_2074640_32026-06-26EngineThis bulletin provides information when there is increased oil consumption; >0.5ltr/1000…
TSB_2074729_32026-06-23Electrical SystemThis bulletin provides informationwhen noises/vibration are detected from front of…
TSB_2059335_72026-06-23Electrical SystemThis bulletin provides information when there are noises from the area around the…
TSB_2065960_62026-06-23Electrical SystemThis bulletin provides information when the display of the Audi virtual cockpit is…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific S5 Sportback. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Group R batteryVehicles taking 7.7 qtEngine oil filter 06M115441GEngine air filter 8W0133843Spark plug 06M905606FBattery 000915089BD

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBsOBD-II trouble codesTorque specificationsMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 2021 S5 Sportback take?

7.7 qt of 0W-20 Synthetic, per the factory manual.

Does the 2021 S5 Sportback have open recalls?

NHTSA lists 5 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the S5 Sportback get?

EPA figures are 20 city / 28 highway / 23 combined mpg.