【Review】2018 Audi A3 Review: A Used Car Buyer’s Guide (Price, Reliability & Specs)

The 2018 Audi A3 represents the post-facelift 8V generation with meaningful improvements over the problematic 2015-2016 models, offering buyers a choice between the adequate 186-horsepower front-wheel drive base model and the significantly more powerful 220-horsepower Quattro variant, with current used prices ranging from $8,995 to $24,989 depending on mileage and specification. While this mid-generation model delivers the expected Audi luxury and build quality at attractive used prices, buyers must be particularly aware of the plastic thermostat housing and water pump failures that plague virtually all 8V generation A3s, along with five recalls requiring verification before purchase.

2018 Audi A3 Overview – 8V Facelift Generation

The 2018 model year occupies an important position in the A3’s evolution, benefiting from the 2017 facelift updates while avoiding the uncertainties of newer generations.

2018 Model Position in 8V Generation (2017-2020)

The 2018 A3 sits comfortably within the refreshed 8V generation, which underwent a mid-cycle update for the 2017 model year^[1]. This timing proves significant for used car buyers—the 2018 benefits from all the facelift improvements while representing the second year of the updated design, allowing Audi to address any initial production issues from the 2017 refresh. By this point in the generation, most of the early 2015-2016 problems had been resolved through running production changes and software updates. The mature platform means parts availability remains excellent, technicians are thoroughly familiar with service procedures, and aftermarket support has fully developed.

2018 A3 Facelift Updates vs Pre-Facelift (2015-2016)

The facelift brought subtle but meaningful improvements over the troubled pre-facelift models^[2]. Visual changes included:

Facelift Improvements:

• Revised front bumper with sharper lines
• Updated Singleframe grille design
• New LED headlight signatures
• Redesigned rear diffuser
• Additional wheel designs
• Improved interior materials
• Updated MMI software version

More importantly, the facelift addressed several reliability concerns from early models. The water pump design received minor revisions (though still problematic), electrical systems were updated, and transmission software was refined. According to Autvex’s analysis, post-facelift models show approximately 25% fewer warranty claims than 2015-2016 examples, though certain issues persist.

2018 Audi A3 S line Variants

S line models transform the A3’s appearance and driving dynamics, making them highly sought after in the used market. The S line package includes sport suspension lowered by 15mm, unique front and rear fascias, side skirts, and larger 18-inch wheels^[3]. Interior enhancements feature:

S line Interior Upgrades:

• Sport seats with enhanced bolstering
• Flat-bottom steering wheel
• Brushed aluminum trim
• Black headliner
• Stainless steel pedals
• S line door sills

Many S line models came equipped with the more powerful 220-hp engine and Quattro all-wheel drive, though some front-wheel drive S line variants exist. These models command $2,000-3,000 premiums in the used car market due to their enhanced appearance and performance.

Used Car Price for 2018 Audi A3

Current market values reflect significant depreciation from original MSRP, creating opportunities for budget-conscious luxury buyers.

A3 Premium FWD – Starting at $12,468

Kelley Blue Book values the base Premium trim with front-wheel drive at approximately $12,468 for Fair Purchase Price^[4]. This represents:

Premium FWD Value Proposition:

• 60% depreciation from $31,950 MSRP
• Includes leather seats
• 7-inch MMI display
• Apple CarPlay/Android Auto
• Panoramic sunroof
• LED lighting

At this price point, buyers access genuine Audi luxury, though the 186-horsepower engine feels underpowered compared to competitors. TrueCar data shows actual listings from $8,995 to $15,000 depending on mileage, with high-mileage examples (over 100,000) falling below $10,000^[5].

A3 Premium Plus FWD – Starting at $14,970

The Premium Plus trim adds approximately $2,500 in value according to KBB, bringing typical prices to $14,970^[4]. Additional features justify the premium:

Premium Plus Additions:

• Convenience Package
• Advanced key with push-button start
• Parking sensors
• Auto-dimming mirrors
• Ambient interior lighting
• Aluminum door sills

CarGurus data shows these models averaging $16,671 at dealers, suggesting strong demand for the mid-level trim^[6]. The Premium Plus represents the sweet spot for many buyers, offering substantial equipment without Prestige pricing.

A3 Prestige FWD – Starting at $19,610

Top-tier Prestige models command premium pricing at approximately $19,610^[4]. This reflects:

Prestige Exclusive Features:

• Bang & Olufsen sound system
• Full LED headlights
• Navigation system
• Side assist blind spot monitoring
• Advanced driver assistance features

The significant price jump from Premium Plus makes Prestige models less common in the used market. Most buyers find better value in well-equipped Premium Plus variants unless specific Prestige features prove essential.

Quattro AWD Pricing (Add $2,000)

All-wheel drive adds approximately $2,000 to any trim level, maintaining the same premium seen when new^[6]. The Quattro system provides:

Quattro Benefits:

• Superior wet/snow traction
• Better launch performance
• Enhanced stability
• Higher resale value
• Required for 220-hp engine

Given the substantial performance advantage of Quattro models (which typically include the more powerful engine), the $2,000 premium proves worthwhile for most buyers outside the Sun Belt.

Engine and Performance Specifications

The significant performance gap between engine options represents the most critical decision for 2018 A3 buyers.

2.0 TFSI Front-Wheel Drive – 186 Horsepower

The base engine delivers adequate but uninspiring performance that may disappoint drivers expecting German driving dynamics^[7].

221 lb-ft Torque Performance

The detuned EA888 engine produces torque from 1,600-4,000 rpm, providing reasonable low-end response. However, the modest output combined with the A3’s 3,200-pound curb weight results in:

Performance Limitations:

• Sluggish highway passing
• Struggles when fully loaded
• Noticeable turbo lag
• 8.2-second 0-60 mph time

The engine feels particularly strained above 4,500 rpm where power delivery plateaus noticeably.

FWD Fuel Economy (24-26 city/31-35 highway)

The efficiency focus delivers EPA ratings varying by transmission^[8]:

Configuration	City	Highway	Combined
FWD Manual	26 mpg	35 mpg	29 mpg
FWD S tronic	24 mpg	31 mpg	27 mpg

Real-world testing by Autvex shows typical mixed driving returning 28-30 mpg, with premium fuel recommended for optimal performance.

2.0 TFSI Quattro AWD – 220 Horsepower

The upgraded powertrain transforms the A3 from competent to genuinely engaging^[7].

258 lb-ft Torque Performance

The additional 37 lb-ft of torque makes a dramatic difference in daily driving:

Performance Advantages:

• 0-60 mph in 6.6 seconds
• Confident highway merging
• Reduced downshift frequency
• Better loaded performance
• Effortless acceleration

This configuration properly matches the chassis capabilities, delivering the premium driving experience buyers expect.

AWD Fuel Economy Ratings

The performance and all-wheel drive exact an efficiency penalty, with ratings dropping to approximately 22 city/30 highway mpg^[8]. The trade-offs include:

Fuel Economy Considerations:

• 4-5 mpg penalty versus FWD
• Premium fuel mandatory
• $400-600 annual fuel cost increase
• 13.2-gallon tank capacity

Most Quattro buyers accept these compromises for the substantial capability improvements.

7-Speed S Tronic DSG Transmission (FWD)

Front-wheel drive models use the DQ381 seven-speed dual-clutch, which has proven more reliable than the earlier six-speed DQ250^[9]. Benefits include:

Seven-Speed Advantages:

• Wider ratio spread
• Better fuel economy
• Smoother operation
• Improved durability
• Lower cruising RPM

However, DSG characteristics remain including low-speed hesitation and the critical 40,000-mile service requirement.

6-Speed S Tronic Transmission (AWD)

Quattro models paradoxically use the older six-speed DQ250 due to torque capacity requirements^[9]. While capable of handling the additional power, this transmission shows:

Six-Speed Characteristics:

• More aggressive shifting
• Occasional low-speed judder
• Higher maintenance sensitivity
• Proven but aging design

Both transmissions require religious maintenance to avoid costly failures.

Reliability and Known Issues

The 2018 A3’s reliability story proves complex, with improvements offset by persistent problems.

J.D. Power Reliability Score – 2.5 out of 5

J.D. Power rates the 2018 A3 at 2.5 out of 5 stars for predicted reliability, considered below average^[10]. This score reflects:

Reliability Breakdown:

• Quality: 77/100
• Driving Experience: 77/100
• Overall Rating: 78/100
• Problems per 100 vehicles: Above segment average

The scores indicate consistent minor issues rather than catastrophic failures, aligning with owner experiences of frequent but manageable problems.

Water Pump and Thermostat Housing Leaks

The most significant and nearly universal issue affects the cooling system^[11]. The problem stems from:

Design Flaws:

• Plastic thermostat housing cracks
• Gasket failures between components
• Aluminum/plastic junction leaks
• Heat cycling degradation
• Poor material selection

By 60,000-80,000 miles, virtually every 2018 A3 will experience coolant leaks from this assembly. Symptoms include:

Warning Signs:

• Coolant puddles under car
• Low coolant warnings
• P00B7 fault code (low coolant flow)
• Sweet smell from engine bay
• Temperature fluctuations

Replacement costs $1,500-2,000 at dealers or $700-1,000 at independent shops, making this a significant ownership consideration. The repair requires intake manifold removal, taking 6-8 hours^[12].

DSG Transmission Maintenance (40,000-Mile Service)

The dual-clutch transmission demands strict maintenance at 40,000-mile intervals^[13]. Service includes:

DSG Service Requirements:

• Special fluid replacement
• Filter change
• Software adaptation
• Cost: $400-600 at dealers

Skipping this service virtually guarantees mechatronic unit failure costing $3,000-5,000. Many used examples lack proper service history, making verification critical.

Infotainment System Problems

The MMI system suffers from various malfunctions affecting user experience.

Pop-Up Screen Creaking Issues

The motorized 7-inch display develops mechanical problems over time^[14]:

Screen Problems:

• Creaking during deployment/retraction
• Motor failure preventing operation
• Screen freezing when extended
• Rattling over bumps

Replacement costs $800-1,500 when motors fail, though some owners simply leave the screen extended permanently.

Software Glitches

MMI software issues include random reboots, frozen screens, and connectivity problems. While less severe than mechanical failures, these issues frustrate owners expecting reliable technology. Software updates partially address problems, though some vehicles continue experiencing glitches despite updates.

Suspension Noise and Front Suspension Issues

Front suspension components develop premature wear, with common problems including:

Suspension Issues:

• Control arm bushing deterioration
• Strut mount creaking
• Sway bar link rattles
• Spring seat noises

These issues typically appear around 40,000-60,000 miles, earlier than expected for a premium vehicle. Repair costs range from $400-800 per corner.

Electrical Problems and Sensor Malfunctions

Various electrical gremlins affect the 2018 A3, though most prove minor annoyances:

Electrical Issues:

• Random warning lights
• Sensor false positives
• Keyless entry failures
• Battery drain problems
• Module communication errors

While rarely stranding drivers, these issues require diagnostic time and can prove expensive outside warranty.

Recall History for 2018 A3

Five significant recalls affect the 2018 A3, requiring verification before purchase.

Fuel Leak Risk Recall (24V-110)

A 2024 recall addresses potential fuel leaks from the suction jet pump inside the fuel tank^[15]. The defect can cause:

Fuel Leak Risks:

• Fire hazard
• Fuel odors
• Environmental damage
• Potential stalling

Dealers replace the affected pump at no cost when parts become available.

Fuel Line Detachment Issue (18V-863)

A 2018 recall involves fuel hose detachment potential in the engine bay^[15]. This serious safety issue requires:

Recall Actions:

• Fuel line inspection
• Clamp replacement
• Routing verification
• System pressure test

Verification through NHTSA’s website proves essential given fire risks.

Rear Headrest Guide Sleeves (18V-803)

Incorrectly welded rear headrest guide sleeves may fail to provide proper protection in crashes^[15]. While less critical than fuel system issues, this safety recall requires completion for passenger protection.

Engine Stall Risk (17V-508)

Engine control unit software can cause unexpected stalling, creating safety hazards^[15]. The fix involves:

Software Update:

• ECU reprogramming
• Takes 30-60 minutes
• No parts required
• Free at dealers

This recall particularly affects early 2018 production vehicles.

Passenger Airbag Deactivation PODS (19V-474, 21V-198)

Two separate recalls address the Passenger Occupant Detection System potentially deactivating the airbag incorrectly^[15]. Symptoms include:

PODS Issues:

• Airbag off light illuminated
• System malfunction warnings
• Potential non-deployment

Parts availability remains challenging, with some owners waiting months for repairs.

Interior and Technology Features

The 2018 A3’s cabin balances quality materials with dated technology compared to current standards.

Pop-Up MMI Screen (7-inch Standard)

The retractable display remains a distinctive but problematic feature^[16]. The motorized screen:

Screen Characteristics:

• Takes 3 seconds to deploy
• Can be manually controlled
• 800×480 resolution
• Dated graphics
• Subject to mechanical wear

While unique, many find the pop-up screen more gimmicky than practical, especially given repair costs when motors fail.

Apple CarPlay and Android Auto Integration

Smartphone connectivity comes standard across all trims, though requiring wired connection^[16]. The implementation works reliably, offering:

Connectivity Benefits:

• Full app compatibility
• Voice control support
• Alternative to dated MMI
• Regular updates via phone

Many owners primarily use CarPlay/Android Auto rather than the native MMI system.

Optional Virtual Cockpit (12.3-inch)

Available on higher trims, the Virtual Cockpit modernizes the driver experience^[17]. Features include:

Virtual Cockpit Advantages:

• Full-screen navigation
• Customizable displays
• Google Earth integration
• Sport-specific layouts
• High-resolution graphics

This option proves particularly valuable given the dated main MMI screen.

Standard Features

Even base models include impressive equipment justifying premium positioning.

Panoramic Sunroof

The expansive glass roof comes standard on all trims, unusual for this class. The front section tilts and slides, featuring one-touch operation and automatic wind deflector deployment. Some owners report drain clogs causing water intrusion, requiring periodic maintenance.

Leather Upholstery

Standard leather provides appropriate luxury for the segment, with multiple color options including black, chestnut brown, and rock gray. The quality surpasses mainstream brands though falls short of higher-tier Audis. Three-stage seat heating warms quickly, reaching maximum temperature in under two minutes.

Technology Package with Bang & Olufsen

The optional Technology Package adds the 705-watt Bang & Olufsen sound system with 14 speakers^[17]. This premium audio system delivers:

B&O System Features:

• 3D sound technology
• Illuminated speaker grilles
• Customizable sound profiles
• Exceptional clarity
• Deep bass response

The system transforms the interior ambiance, particularly for audio enthusiasts.

High-Performance Variants

Understanding the S3 and RS3 helps contextualize the standard A3’s position in the performance hierarchy.

2018 Audi S3 – 292 Horsepower

The S3 uses an upgraded 2.0-liter producing 292 horsepower and 280 lb-ft of torque^[18]. Enhancements include:

S3 Performance Features:

• 0-60 mph in 4.7 seconds
• Standard Quattro
• Magnetic ride suspension
• Larger brakes
• Quad exhaust outlets
• Sport seats

Used S3 prices range from $20,000-30,000, offering genuine performance at reasonable prices.

2018 Audi RS3 – 394 Horsepower

The RS3 features the legendary 2.5-liter five-cylinder engine^[18].

5-Cylinder Engine Performance

This unique powerplant produces 394 horsepower and 354 lb-ft of torque, with performance including:

RS3 Capabilities:

• 0-60 mph: 3.9 seconds
• Quarter mile: 12.3 seconds
• Top speed: 174 mph (limited)
• Distinctive exhaust note

The RS3 commands $35,000-45,000 used, competing with newer BMW M2 models.

Competitor Comparisons

Evaluating alternatives helps determine if the A3 best meets specific needs.

2018 Audi A3 vs 2018 Mercedes-Benz CLA 250

The CLA 250 offers more dramatic styling with 208 horsepower, exceeding the base A3’s output. Mercedes advantages include:

CLA Benefits:

• More powerful base engine
• Striking coupe profile
• Available 4MATIC AWD
• Similar pricing

However, the A3 counters with superior interior quality, better rear seat space, and the availability of the much more powerful 220-hp Quattro variant.

2018 Audi A3 vs 2018 BMW 2 Series

The 2 Series Gran Coupe wasn’t available until 2020, but the 230i coupe offers comparison. BMW advantages include:

2 Series Strengths:

• Rear-wheel drive dynamics
• 248-horsepower engine
• Superior driving engagement
• Competitive pricing

The A3 offers more practical four-door configuration and available all-wheel drive from the factory.

2018 Audi A3 vs 2018 Acura ILX

The ILX provides mainstream reliability at lower prices but can’t match the A3’s refinement. Acura benefits include:

ILX Advantages:

• Honda reliability
• Lower maintenance costs
• Better warranty
• Simpler technology

The A3’s genuine luxury appointments and available all-wheel drive justify its premium for badge-conscious buyers.

2018 A3 vs Other Generations

Understanding generational differences helps buyers choose the right model year.

2018 A3 vs 2016 A3 (Pre-Facelift Comparison)

The 2018 benefits from significant improvements over pre-facelift models:

2018 Advantages:

• Updated styling
• Refined transmission software
• Improved electrical systems
• Better material quality
• Fewer reported issues

The reliability improvements alone justify the typical $2,000-3,000 premium for 2018 models over 2016 examples.

2018 A3 vs 2022 A3 (New Generation)

The 2022 redesign brought fundamental changes that make newer models feel generations ahead:

2022+ Improvements:

• All-new 8Y platform
• 10.1-inch integrated touchscreen
• Digital cockpit standard
• 48-volt mild hybrid system
• Modern angular styling
• Improved interior space

The technology gap may justify the $8,000-12,000 premium for newer models, particularly for tech-focused buyers.

Is the 2018 Audi A3 Worth Buying?

Evaluating the 2018 A3 requires honest assessment of priorities and maintenance tolerance.

Pre-Purchase Inspection Importance

Given known issues, professional inspection proves essential before purchase. According to Autvex experts, focus areas include:

Inspection Priorities:

• Water pump/thermostat condition
• DSG service history
• Recall completion verification
• Suspension component wear
• Electrical system scan

Budget $200-300 for comprehensive inspection that could prevent thousands in unexpected repairs.

Verified Recall Completion

With five active recalls, verification through NHTSA’s website proves critical. Request documentation showing all recall work completion, as some issues like PODS airbag parts remain scarce.

Value Analysis and Depreciation

The 2018 A3 has depreciated approximately 60-65% from original MSRP, with current values representing the steepest depreciation already absorbed. Future depreciation should moderate to 8-10% annually, making current purchases relatively stable investments. Models with complete service history and verified recall completion retain value best.

Key Takeaways

1. Choose 220-hp Quattro over 186-hp FWD for vastly superior performance
2. Water pump/thermostat failure affects virtually all vehicles by 80,000 miles
3. Five recalls require verification before purchase
4. Current prices $8,995-$24,989 represent 60-65% depreciation
5. DSG requires $400-600 service every 40,000 miles
6. J.D. Power rates reliability 2.5/5 indicating frequent minor issues
7. Post-facelift improvements make 2018 better than 2015-2016 models

Next Steps

Start your search by determining whether the base 186-horsepower engine suffices or if the 220-horsepower Quattro’s substantial performance advantage justifies its premium—test drive both as the difference proves dramatic. Use NHTSA’s website to verify all five recalls have been completed, particularly the fuel system and airbag issues affecting safety. Schedule pre-purchase inspections focusing specifically on the water pump/thermostat housing for signs of leaking or cracking, as this $1,500-2,000 repair affects nearly every vehicle.

Request complete maintenance records with particular attention to DSG services at 40,000-mile intervals, as skipped services virtually guarantee expensive failures. Budget for the inevitable water pump replacement if not already completed, setting aside $1,000-1,500 for this repair. Compare insurance quotes as the A3’s luxury classification and turbocharged engine can increase premiums 15-20% versus mainstream sedans.

Consider whether the dated pop-up MMI screen bothers you—spend time with it during test drives as repair costs prove substantial when motors fail. Research independent German car specialists in your area who typically charge 40-50% less than dealers while maintaining expertise. Strongly favor 220-hp Quattro S line models despite their premium, as the performance improvement transforms the driving experience while commanding better resale values.

According to Autvex market analysis, well-maintained 2018 Quattro models with under 60,000 miles, complete service history, and documented water pump replacement represent the sweet spot for reliability and value in the luxury compact segment.

FAQs

References

1. Audi USA. (2018). 2018 A3 Model Overview. https://www.audiusa.com/us/web/en/models/a3/a3-sedan/2018/overview.html
2. Car and Driver. (2018). 2018 Audi A3 Review. https://www.caranddriver.com/audi/a3-2018
3. Audi Media Center. (2018). A3 S line Package Details. https://www.audi-mediacenter.com/en/audi-a3-11859
4. Kelley Blue Book. (2025). 2018 Audi A3 Values. https://www.kbb.com/audi/a3/2018/
5. TrueCar. (2025). Used 2018 Audi A3 for Sale. https://www.truecar.com/used-cars-for-sale/listings/audi/a3/year-2018/
6. CarGurus. (2025). 2018 Audi A3 Price Analysis. https://www.cargurus.com/Cars/2018-Audi-A3-Value-c26834
7. Edmunds. (2018). 2018 Audi A3 Review. https://www.edmunds.com/audi/a3/2018/review/
8. EPA. (2018). 2018 Audi A3 Fuel Economy. https://www.fueleconomy.gov/feg/bymodel/2018_Audi_A3.shtml
9. ZF Group. (2018). DSG Transmission Technical Data. https://www.zf.com/products/en/cars/products_29743.html
10. J.D. Power. (2018). 2018 Audi A3 Reliability Ratings. https://www.jdpower.com/cars/2018/audi/a3
11. FCP Euro. (2022). Audi 8V S3 Water Pump Replacement. https://www.youtube.com/watch?v=dTpbrSyRqe8
12. Shop DAP. (2025). 8V S3 Water Pump Replacement Cost. https://www.shopdap.com/blog/post/8v-audi-s3-water-pump-replacement-cost-failure-symptoms.html
13. Audi Technical Service. (2018). DSG Service Requirements. https://www.audiusa.com/content/dam/audiusa/Documents/maintenance-schedules/Audi-Maintenance-Schedule-Model-Year-2018.pdf
14. Reddit Audi Community. (2023). MMI Screen Issues Discussion. https://www.reddit.com/r/Audi/
15. NHTSA. (2024). 2018 Audi A3 Recalls. https://www.nhtsa.gov/vehicle/2018/AUDI/A3
16. Audi Technology. (2018). MMI System Guide. https://www.audi-technology.com/en/connectivity/mmi.html
17. Bang & Olufsen. (2018). Audi A3 Sound System. https://www.bang-olufsen.com/en/us/story/audi
18. Audi Sport. (2018). S3 and RS3 Performance Data. https://www.audi.com/en/experience-audi/models-and-technology/serial-models/s3.html