2015 Acura ILX — Full Specifications
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The 2015 Acura ILX is a saloon/sedan offered with 2 engines (2L 4-cyl, 2.4L 4-cyl). Its most fuel-efficient configuration returns around 34 mpg (UK) / 28 mpg (US EPA) combined, with 30–34 mpg (UK) across all configurations. Owners often keep a Acura ILX workshop manual to hand for servicing and repairs.
Compared with the 2014 Acura ILX: Fuel economy improves from 32 to 34 mpg (UK) combined on the most efficient configuration. No longer listed: 1.5L 4-cyl. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine (most efficient) | 2L 4-cyl |
|---|---|
| Engine options | 2L 4-cyl · 2.4L 4-cyl |
| Transmission (most efficient) | Automatic (S5) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Saloon/Sedan |
| Length | 4549 mm |
| Width | 1794 mm |
| Height | 1413 mm |
| Passenger Volume (EPA) | 89 cu ft (2,520 L) |
| Luggage Volume (EPA) | 12 cu ft (340 L) |
| Fuel Economy (UK) | 34 combined / 29 urban / 41 extra-urban mpg |
| Fuel Economy (US EPA) | 28 combined / 24 city / 34 highway mpg |
| CO₂ Emissions | 199 g/km |
| EPA Greenhouse Gas Score | 7 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,950 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2015 Acura ILX across 2 engines (2L 4-cyl, 2.4L 4-cyl). Combined fuel economy ranges from 25 to 28 mpg (US), or 30 to 34 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 2L 4-cyl | Automatic (S5) | Front-Wheel Drive | 34 | 28 (24/34) | 199 | $2,950 |
| 2.4L 4-cyl | Manual 6-spd | Front-Wheel Drive | 30 | 25 (22/31) | 217 | $3,300 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 89 cubic feet (about 2,520 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2015 Acura ILX
Running Costs: 2015 Acura ILX
Covering around 8,000 miles a year in a 2015 Acura ILX at 34 mpg combined, expect roughly 1,070 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,950 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2015 Acura ILX Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 4 safety recall campaigns that include the 2015 Acura ILX (as of 6 October 2026). Most affected areas: Air bags (2), Power train (1), Fuel system (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Power train — campaign 20V770000, reported 10 December 2020. Risk: A broken drive shaft may cause a sudden loss of drive power. The vehicle could also roll away if the parking brake has not been applied before the vehicle has been exited. Either condition can increase the…
- Air bags — campaign 19V182000, reported 6 March 2019. Risk: An explosion of an inflator within the driver frontal air bag module may result in sharp metal fragments striking the driver, front seat passenger or other occupants resulting in serious injury or death.
- Fuel system — campaign 19V052000, reported 24 January 2019. Risk: If the fuel gauge displays that the vehicle has more gas than it actually does, the vehicle may run out of gas and stall, increasing the risk of a crash.
- Air bags — campaign 16V061000, reported 3 February 2016. Risk: In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the driver or other occupants resulting in serious injury or death.
Owners have filed 19 complaints with NHTSA about the 2015 Acura ILX. The most-reported areas are Air bags (12), Electrical system (3), Engine (2). Complaints include 1 reported fire, 1 reported injury. That is close to the median of 22 complaints across the 10 Acura ILX model years in our data.
Used-buyer checklist for the 2015 Acura ILX
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Air bags (2 recall campaigns · 12 owner complaints) — Confirm any air bag inflator or module recalls were completed — enter the VIN at nhtsa.gov/recalls.
- Transmission & drivetrain (1 recall campaign) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
- Fuel system (1 recall campaign) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Electrical system (3 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Acura models in our database average about 29 mpg (UK) combined on their most efficient configuration; the 2015 Acura ILX's 34 mpg is 5 mpg above that make average. Its 199 g/km CO₂ figure is 36 g/km lower than the 235 g/km Acura average.
Of the 10 Acura ILX model years we cover, the 2015 ranks 4th for combined fuel economy on its best configuration (34 mpg UK combined, against a high of 35 mpg). See every Acura ILX year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2015 Acura ILX
Frequently Asked Questions
What engine does the 2015 Acura ILX have?
EPA lists 2 engines for the 2015 Acura ILX: 2L 4-cyl, 2.4L 4-cyl. The most fuel-efficient configuration pairs the 2L 4-cyl with a automatic (s5).
What is the fuel economy of the 2015 Acura ILX?
The most efficient configuration returns around 34 mpg (UK) combined, or 28 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 30 to 34 mpg.
How much does the 2015 Acura ILX cost to fuel per year?
The US EPA estimates about $2,950 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2015 Acura ILX have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2015 Acura ILX have any recalls?
NHTSA lists 4 safety recall campaigns that include the 2015 Acura ILX (as of 6 October 2026). Most affected areas: Air bags (2), Power train (1), Fuel system (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2015 Acura ILX?
Among the 19 owner complaints filed with NHTSA, the most-reported areas are Air bags (12 complaints), Electrical system (3 complaints), Engine (2 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2015 Acura ILX have?
EPA measures interior passenger volume at 89 cubic feet (about 2,520 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.