【Review】2023 Audi A4 Review: A Used Car Buyer’s Guide (Price, Reliability & Specs)

The 2023 Audi A4 stands out as a reliable used luxury sedan with consumer ratings of 5.0/5 stars and prices ranging from $24,122-$35,000, offering mature B9 generation engineering with two engine options (201 hp or 261 hp) and standard all-wheel drive. Despite isolated transmission concerns and a compact 12 cubic foot trunk, it delivers exceptional interior quality and refined driving dynamics that compete strongly against BMW and Mercedes-Benz alternatives.

2023 Audi A4 B9 Generation Overview

The 2023 model year represents the seventh year of the B9 generation, placing it among the most refined iterations of this platform. Since its 2017 debut, the B9 has undergone continuous improvements, making the 2023 version particularly attractive for used car buyers seeking proven reliability without the uncertainty of newer designs.

2023 Audi A4 Review Used Market Status

Current market analysis shows strong availability of 2023 A4 models in the used sector, with inventory ranging from low-mileage corporate lease returns to private party sales. According to Edmunds’ data, trade-in values range from $22,389 to $35,097 depending on trim level and condition^[1]. This represents approximately 35-40% depreciation from original MSRP in just two years—typical for luxury sedans but advantageous for savvy buyers.

The used market particularly favors Premium Plus models with the 45 TFSI engine, which offer the best balance of features and performance. These vehicles typically retain factory warranty coverage through 2027, providing crucial protection against expensive repairs.

Is the 2023 Audi A4 a Good Used Car

Multiple reliability metrics confirm the 2023 A4’s strong position in the used luxury sedan market. J.D. Power awarded it a Vehicle Dependability Study score of 83 out of 100, placing it above the luxury compact segment average^[2]. Consumer Reports projects above-average reliability based on owner feedback and historical data, while iSeeCars gives it a 7.7 out of 10 reliability rating^[3].

Real-world ownership experiences support these ratings. Edmunds users rate the 2023 A4 at 4.3 out of 5 stars based on actual ownership, praising build quality, refinement, and technology integration. The mature B9 platform means most early-generation issues have been resolved, making 2023 models particularly dependable choices.

2023 Audi A4 S Line Features

The S Line appearance package transforms the A4’s conservative styling into something more assertive. Standard S Line equipment includes unique 18-inch alloy wheels, sport suspension lowering ride height by 0.9 inches, aggressive front and rear bumpers with gloss black accents, and aluminum-look interior trim pieces.

Inside, S Line models feature sport seats with enhanced bolstering and contrast stitching, a flat-bottom steering wheel with paddle shifters, and unique S Line badging throughout. The sport-tuned suspension delivers sharper handling without excessive compromise to ride quality, though some drivers find it firm on rough roads. Used S Line models typically command a $1,800-2,500 premium over standard versions.

2023 A4 vs 2024 A4 Comparison

Understanding the minimal changes between model years helps buyers assess value propositions. The 2024 model added standard driver assistance features that were optional on 2023 models, including adaptive cruise control and lane-keeping assist. However, 2023 buyers could option these features, and many did, making well-equipped 2023s nearly identical to 2024 models.

The 2023 retains both engine options (40 and 45 TFSI), while some markets saw the 40 TFSI dropped for 2024. This gives 2023 buyers more powertrain flexibility, particularly those seeking the more affordable front-wheel-drive configuration—the last year this option was available.

2023 Audi A4 vs 2025 Audi A4 (Final Year)

The 2025 model marks the A4’s swan song before transformation into the A5. Key differences include standard remote start on 2025 models (unavailable on 2023), elimination of the 40 TFSI engine option, and introduction of the S Line Plus package. However, these updates come with a $2,000+ price premium that many find difficult to justify.

For used buyers, the 2023 offers 90% of the 2025’s capabilities at 65-70% of the cost. The absence of remote start can be addressed with aftermarket solutions costing $400-600, still leaving substantial savings versus a 2025 model.

2023 Audi A4 vs 2026 Audi A5 (New Generation)

The upcoming A5 represents a complete redesign on Audi’s new Premium Platform Combustion (PPC) architecture. While offering improved technology and increased interior space, it also brings first-year reliability uncertainties and significantly higher pricing. Autvex analysis suggests the 2023 A4 provides better value for buyers prioritizing proven reliability over cutting-edge features.

The A5’s hatchback design offers practical advantages with 16 cubic feet of cargo space versus the A4’s 12, but this comes at a projected $5,000-7,000 premium for comparable equipment levels. For many buyers, the mature 2023 A4 represents the sweet spot of modern technology and established dependability.

2023 Audi A4 Drivetrain & Performance Specifications

The 2023 A4’s powertrain options cater to different priorities, from efficiency-focused commuters to performance-oriented enthusiasts.

2023 Audi A4 40 TFSI Horsepower (201 hp)

The base 40 TFSI designation indicates a 2.0-liter turbocharged four-cylinder producing 201 horsepower and 236 lb-ft of torque. This engine incorporates a 12-volt mild hybrid system using a belt-driven starter-generator for seamless stop-start functionality and energy recuperation during deceleration.

2023 A4 FWD vs Quattro Options

Unique among recent A4 models, the 2023 40 TFSI offered both front-wheel drive and quattro all-wheel drive configurations. The FWD model, starting at approximately $39,900 when new, provides adequate traction for moderate climates while improving fuel economy by 1-2 mpg. It also weighs 150 pounds less, contributing to slightly more agile handling.

The optional quattro system adds $2,100 to the original price but delivers superior all-weather capability. The latest generation uses ultra technology, disconnecting the rear axle during steady cruising to save fuel, then engaging within milliseconds when slip is detected. Used market pricing shows minimal difference between FWD and AWD models, making quattro versions excellent value.

2023 Audi A4 2.0T Engine Details

The EA888 Gen 3B engine represents one of the industry’s most refined four-cylinder turbo units. Direct fuel injection, variable valve timing on both camshafts, and an integrated exhaust manifold optimize efficiency and performance. The turbocharger features an electric wastegate for precise boost control, delivering peak torque from just 1,450 rpm.

This engine family has proven remarkably durable when properly maintained. Regular oil changes using VW 508.00 specification 0W-20 synthetic oil are crucial, as is addressing carbon buildup through walnut blasting every 40,000-50,000 miles—a consequence of direct injection technology.

2023 Audi A4 45 TFSI Horsepower (261 hp)

The performance-oriented 45 TFSI extracts 261 horsepower and 273 lb-ft of torque from the same 2.0-liter displacement through increased boost pressure and optimized engine management.

2023 A4 40 vs 45 TFSI Review

The 60-horsepower difference transforms the driving experience significantly. While the 40 TFSI provides adequate acceleration for daily driving, the 45 TFSI delivers genuine enthusiasm. Highway passing becomes effortless, and the additional torque makes the car feel more responsive in everyday situations.

Fuel economy differences are minimal—the 45 TFSI achieves 24/32/27 mpg (city/highway/combined) versus the 40’s 27/36/30 mpg. For most drivers, the performance gains justify the modest efficiency penalty. Insurance costs typically run $100-200 annually higher for the 45 TFSI due to increased performance potential.

2023 A4 0-60 Time (5.2 seconds)

Independent testing confirms the 45 TFSI quattro achieves 0-60 mph in 5.2 seconds^[4], competitive with rivals like the BMW 330i (5.6 seconds) and Mercedes C300 (5.7 seconds). The seven-speed S tronic dual-clutch transmission contributes to rapid acceleration through lightning-fast shifts executed in under 100 milliseconds.

Launch control, standard on 45 TFSI models, optimizes traction during standing starts. However, Audi limits its use to preserve drivetrain longevity—excessive use can trigger protective protocols that temporarily disable the feature.

2023 A4 MPG and Fuel Economy

Real-world fuel economy often surprises given the performance available. The EPA ratings of 28 mpg combined for the 40 TFSI and 27 mpg for the 45 TFSI prove achievable in mixed driving. Highway cruising at 75 mph typically returns 32-34 mpg thanks to the tall seventh gear and aerodynamic efficiency.

The 15.3-gallon fuel tank provides over 450 miles of highway range, reducing refueling stops on long journeys. Premium fuel is recommended but not required—using regular unleaded reduces power by approximately 10% but won’t damage the engine.

2023 Audi A4 Reliability & Common Problems

Understanding potential issues helps buyers make informed decisions and budget appropriately for maintenance.

2023 Audi A4 Reliability Rating

The 2023 A4 earns strong reliability scores across multiple evaluation platforms. U.S. News ranks it **#1 out of 18 luxury small cars for reliabilityup>[5], while Consumer Reports predicts above-average reliability based on owner surveys and historical data.

Is the 2023 Audi A4 Reliable

Extensive owner feedback confirms the 2023 A4’s dependability. The mature B9 platform benefits from six years of continuous refinement, with most early-generation issues resolved. Common wear items like brakes and tires represent the primary maintenance expenses, with major mechanical failures being rare.

The 2.0T engine’s proven track record spans millions of units across the Volkswagen Group, with well-documented maintenance requirements and abundant parts availability. Following Audi’s prescribed service intervals virtually guarantees long-term reliability.

2023 A4 J.D. Power Score

J.D. Power’s Vehicle Dependability Study awarded the A4 83 out of 100 points, significantly above the luxury compact car segment average of 76^[2]. This score reflects problems experienced per 100 vehicles during the past 12 months of ownership, with lower scores indicating better reliability.

Key areas of strength include engine/transmission major, driving experience, and exterior categories. The only below-average category involves infotainment system glitches—a common issue across modern luxury vehicles with complex electronics.

2023 Audi A4 Common Problems

While generally reliable, certain issues merit attention when evaluating used examples.

2023 Audi A4 S tronic (DSG) Transmission Problems

The seven-speed S tronic dual-clutch transmission occasionally experiences issues, though problems are less common than internet forums suggest. Symptoms include harsh shifting, delayed engagement from stops, or flashing PRND indicators on the dashboard^[6].

Most transmission issues stem from inadequate maintenance rather than design flaws. The S tronic requires fluid and filter changes every 40,000 miles—skipping this service causes premature clutch pack wear and mechatronic unit problems. Service costs approximately $400-500 at independent specialists.

2023 A4 36k Mile Transmission Failure Reports

Some owners report transmission failures around 36,000 miles, though these represent statistical outliers rather than widespread problems. Investigation often reveals missed maintenance, aggressive driving without proper warm-up, or previous accident damage affecting drivetrain components.

Pre-purchase inspections should include transmission fluid sampling—dark or burnt-smelling fluid indicates neglect. Clean, amber-colored fluid suggests proper maintenance. Extended warranties covering the transmission cost $1,800-2,500 and provide peace of mind for concerned buyers.

2023 A4 Electrical System Failures

Modern Audis incorporate extensive electronics that occasionally malfunction, though 2023 models show improvement over earlier years.

2023 A4 Infotainment Issues

The MMI touch infotainment system sometimes experiences freezing, slow response, or connectivity problems with smartphones. Software updates available through dealers often resolve these issues, with TSBs (Technical Service Bulletins) addressing known glitches.

Some owners report the 10.1-inch touchscreen becoming unresponsive in extreme temperatures. This typically resolves after the cabin reaches normal temperature, though persistent issues may require module replacement under warranty. Aftermarket solutions exist for adding wireless Apple CarPlay to models without this feature.

2023 Audi A4 Recalls

Several recalls affect 2023 A4 models, though most involve free repairs at dealers:

• Fuel pump module: Certain VINs received faulty fuel pumps that could fail without warning (NHTSA Campaign 23V-385)
• Rearview camera: Software glitch may cause delayed image display (easily fixed with software update)
• Passenger airbag: Occupant detection system may not properly categorize small adults

Checking recall status through NHTSA’s website using the VIN ensures all campaigns are complete before purchase.

Used 2023 Audi A4 Price & Value Analysis

The luxury car depreciation curve creates opportunities for educated buyers.

Used 2023 Audi A4 Price in 2025

Current market data from Edmunds shows 2023 A4 values ranging from $22,389 to $35,097 based on trim, mileage, and condition^[1]. These figures represent dealer trade-in values; private party sales typically command 8-10% premiums.

Trim Level	Trade-In Value	Private Party	Dealer Retail
Premium 40 TFSI	$22,389-24,673	$23,975-26,828	$25,761-29,259
Premium 45 TFSI	$23,697-26,071	$25,513-28,026	$27,561-30,232
Premium Plus 40	$24,039-26,447	$25,914-28,466	$28,030-30,747
Premium Plus 45	$27,171-28,240	$28,179-29,393	$29,315-30,686
Prestige 45	$28,617-30,726	$30,328-32,781	$32,255-35,097

These values assume average condition with typical mileage (12,000 miles/year). Lower mileage examples command premiums, while high-mileage vehicles see proportional discounts.

Original MSRP 2023 Audi A4

Understanding original pricing helps assess depreciation and value:

• Premium 40 TFSI FWD: $39,900
• Premium 40 TFSI quattro: $42,000
• Premium 45 TFSI quattro: $41,900
• Premium Plus 45 TFSI: $46,400
• Prestige 45 TFSI: $50,100

These figures excluded destination charges ($1,095) and optional equipment. Typical transaction prices ran $1,000-2,000 below MSRP even when new.

2023 A4 Depreciation Rates

Edmunds projects the 2023 A4 will lose $15,952 over five years from new, retaining approximately 55% of its original value^[1]. First-year depreciation hit hardest at nearly $5,000, but the curve flattens considerably thereafter:

• Year 1 (2024): -$4,973
• Year 2 (2025): -$2,529
• Year 3 (2026): -$2,426
• Year 4 (2027): -$2,936
• Year 5 (2028): -$3,088

This depreciation pattern makes 2-3 year old models particularly attractive, having absorbed the steepest depreciation while retaining modern features and remaining warranty coverage.

2023 Audi A4 Value 2025 Assessment

Current market dynamics favor buyers of 2023 models. Supply remains robust from off-lease vehicles and trade-ins, while demand has moderated from pandemic peaks.

Is the 2023 Audi A4 Worth It

Multiple factors make the 2023 A4 compelling for used luxury sedan buyers. Remaining factory warranty through 2027 provides protection against major repairs. The mature B9 platform offers proven reliability without first-year teething issues. Standard all-wheel drive and comprehensive safety features match or exceed newer competitors.

Autvex market analysis shows 2023 A4s offering superior value compared to similarly-priced new mainstream sedans. A loaded Honda Accord Touring approaches $38,000 new, while a comparable 2023 A4 Premium Plus can be acquired for $28,000-30,000 used, delivering genuine luxury for mainstream prices.

Is the 2023 Audi A4 Worth Buying in 2025

For buyers seeking luxury without new-car premiums, the 2023 A4 presents an excellent opportunity. Key advantages include:

• 35-40% depreciation already absorbed
• Factory warranty remaining through 2027
• Proven reliability ratings from multiple sources
• Modern technology including wireless charging and digital cockpit
• Lower insurance costs than newer models
• Established service network with competitive parts pricing

The primary consideration involves upcoming model changes. The A4’s transformation into the A5 may affect long-term resale values, though historical precedent suggests minimal impact on well-maintained examples.

2023 Audi A4 Interior & Technology

The cabin remains one of the A4’s strongest selling points, combining material excellence with intuitive technology.

2023 Audi A4 Interior Review

Audi’s reputation for interior excellence continues in the 2023 A4. Soft-touch materials cover nearly every surface, with tight panel gaps and consistent assembly quality throughout. Even base Premium models feature genuine leather seating, aluminum or wood trim, and dual-zone automatic climate control.

Build quality surpasses key rivals, with BMW’s 3 Series using more hard plastics in lower door panels and the Mercedes C-Class exhibiting inconsistent assembly quality. The A4’s switchgear operates with satisfying precision, from the click of the drive mode selector to the weighted action of the volume knob.

2023 Audi A4 Virtual Cockpit Features

Available on Premium Plus and standard on Prestige trims, the 12.3-inch Virtual Cockpit Plus transforms the traditional gauge cluster into a customizable digital display. Multiple viewing modes allow drivers to prioritize navigation, media, or vehicle information, with smooth animations and crisp graphics throughout.

Google Earth integration provides satellite imagery for navigation, while the sport display mode features a central tachometer reminiscent of Audi’s R8 supercar. The system’s responsiveness and resolution exceed BMW’s Live Cockpit Professional and Mercedes’ digital cluster in clarity and customization options.

2023 A4 MMI 10.1-inch Screen

The MMI touch infotainment system centers on a 10.1-inch display angled toward the driver. Haptic feedback confirms inputs, reducing the need to look away from the road. Natural voice recognition understands conversational commands like “I’m cold” to adjust temperature or “Find the nearest Italian restaurant with good reviews” for navigation.

Wireless Apple CarPlay became available mid-year 2023, though Android Auto remains wired-only. The system’s processing speed improved over previous generations, though occasional lag remains during cold starts. Physical controls for volume and critical climate functions address common touchscreen criticisms.

2023 A4 Cargo Space (12 cu ft)

The A4’s 12 cubic foot trunk represents its most significant practical limitation. Competitors like the BMW 3 Series offer 17 cubic feet, while the Mercedes C-Class provides 12.6 cubic feet. The trunk opening is reasonably wide, but the space itself is shallow due to the quattro system’s rear differential placement.

Rear seats fold 40/20/40 for longer items, though the opening between trunk and cabin restricts bulky cargo. The A4 Allroad wagon variant offers 29.1 cubic feet for buyers prioritizing cargo capacity, though at a $2,500 premium in the used market.

High-Performance Variants

Beyond the standard A4, Audi offered performance and utility variants worth considering.

2023 Audi S4 Review (349 hp)

The S4 elevates the A4 formula with a turbocharged 3.0-liter V6 producing 349 horsepower and 369 lb-ft of torque. This represents nearly 90 hp more than the A4 45 TFSI, transforming the refined sedan into a genuine performance machine.

2023 Audi S4 Reliability

Despite added complexity, the S4 maintains strong reliability ratings. The EA839 V6 engine has proven robust across multiple Audi and Porsche applications. Common issues mirror the A4’s, primarily involving infotainment glitches rather than mechanical failures.

Maintenance costs run approximately 30% higher than the A4 due to additional cooling systems, larger brakes, and sport differential service requirements. Budget $1,500-2,000 annually for routine maintenance after warranty expiration.

2023 Audi S4 0-60 Performance

The S4 accelerates from 0-60 mph in 4.4 seconds, placing it among the quickest in its segment^[4]. The eight-speed Tiptronic automatic transmission handles the V6’s torque better than the A4’s dual-clutch unit, providing smoother operation in daily driving while maintaining quick shifts when needed.

Sport differential actively distributes torque between rear wheels, improving cornering dynamics significantly. Combined with adaptive dampers (standard on S4), the driving experience approaches dedicated sports sedans while maintaining Audi’s trademark refinement.

2023 Audi A4 Allroad Review

The A4 Allroad wagon combines sedan dynamics with crossover practicality. Standard features include raised suspension providing 6.5 inches of ground clearance, protective body cladding, hill descent control, and standard roof rails.

Power comes exclusively from the 45 TFSI engine with standard quattro all-wheel drive. The additional ground clearance and wagon body add approximately 200 pounds, slightly blunting acceleration but improving rough-road capability. Used market pricing typically runs $2,500-3,500 above equivalent A4 sedans, justified by increased versatility.

2023 Audi A4 vs Competition

Understanding competitive dynamics helps contextualize the A4’s strengths and weaknesses.

2023 Audi A4 vs 2023 BMW 3 Series

The perennial A4 versus 3 Series debate continues with the 2023 models. BMW’s G20 generation 3 Series, redesigned for 2019, offers newer architecture and sportier driving dynamics. The 330i’s 2.0-liter turbo produces 255 horsepower, splitting the difference between A4 engine options.

Where BMW excels: sharper steering feedback, more engaging handling, and stronger acceleration from the 330i. The 3 Series also offers more cargo space (17 cubic feet) and optional rear-wheel drive for purists.

Where Audi dominates: interior quality, with superior materials and tighter assembly throughout. The A4’s standard quattro all-wheel drive (versus BMW’s $2,000 xDrive option) provides better value. Audi’s Virtual Cockpit also surpasses BMW’s digital instrumentation in functionality and customization.

2023 Audi A4 vs 2023 Mercedes-Benz C-Class

Mercedes redesigned the C-Class for 2022, giving it significant technology advantages over the aging A4. The C300’s portrait-oriented 11.9-inch central display dominates the dashboard, offering cutting-edge graphics but polarizing ergonomics.

The C300’s 2.0-liter turbo generates 255 horsepower with advanced 48-volt mild hybrid assistance, improving efficiency and refinement. However, many drivers prefer the A4’s traditional control layout with physical buttons for critical functions.

Build quality varies more in the Mercedes, with some examples showing squeaks and rattles absent in the consistently solid A4. The C-Class commands higher used prices, typically $3,000-4,000 more for comparable equipment.

2023 Audi A4 vs 2023 Genesis G70

Genesis positions the G70 as the value alternative to German luxury. Substantially updated for 2022, the G70 offers striking design and impressive performance credentials. The base 2.0T matches the A4 45 TFSI’s output while the available 3.3T V6 provides M3-challenging performance.

Where Genesis wins: longer warranty (remaining from 10-year/100,000-mile powertrain coverage), lower purchase prices (typically $2,000-3,000 less), and unique styling that stands out from German conformity.

Where Audi prevails: brand prestige matters in luxury segments, affecting both ownership satisfaction and resale values. The A4’s interior, while conservative, exhibits superior material quality and assembly precision. Audi’s 346-dealer network dwarfs Genesis’ 56 standalone facilities, ensuring easier service access.

Key Takeaways

1. Strong reliability ratings with 5.0/5 consumer scores and 83/100 J.D. Power rating
2. Excellent value proposition at $24,122-35,000 used, representing 35-40% depreciation
3. Two distinct powertrains: 201 hp for efficiency or 261 hp for performance enthusiasm
4. Standard quattro AWD on most models provides all-weather security
5. Superior interior quality exceeds BMW and Mercedes in materials and assembly
6. Potential transmission concerns around 36k miles require pre-purchase inspection focus
7. Limited cargo space at 12 cubic feet may frustrate practical buyers

Decision Path / Next Steps

Begin your search focusing on Premium Plus 45 TFSI models, which offer optimal features and performance balance around $27,000-29,000. These typically include Virtual Cockpit, navigation, and blind-spot monitoring while avoiding Prestige trim’s diminishing returns on premium features.

Obtain comprehensive vehicle history through Carfax or AutoCheck, eliminating cars with accident damage or incomplete service records. Focus on single-owner vehicles with documented maintenance from Audi dealerships or recognized European specialists.

Schedule pre-purchase inspections with Audi-familiar technicians, costing $200-350 but potentially saving thousands. Key inspection areas include S tronic transmission fluid condition, scanning for stored fault codes, checking for oil leaks common around valve covers, and verifying all electronic features function properly.

Negotiate based on market conditions and needed maintenance. Current abundance of off-lease 2023 models creates buyer leverage. Target 5-7% below asking price for dealer sales, more for private transactions. Factor upcoming 40,000-mile service (approximately $600-800) into negotiations if approaching this threshold.

Consider Certified Pre-Owned status if available, adding approximately $2,000 to purchase price but extending warranty to 2028 with unlimited mileage. This proves worthwhile for buyers planning extended ownership or those concerned about potential transmission issues.

Budget for ownership costs including premium fuel requirement ($300-400 annually extra), synthetic oil changes every 10,000 miles ($90-120 each), and potential carbon cleaning at 40,000-50,000 miles ($400-600). Annual maintenance typically runs $800-1,200 after warranty, though well-maintained examples may require less.

Explore financing through credit unions or banks rather than dealers for better rates. Current used car rates average 6-7% for qualified buyers, though manufacturer-certified vehicles sometimes qualify for promotional rates. Factor insurance costs—expect $1,400-1,800 annually for full coverage depending on location and driving history.

Finally, test drive multiple examples to identify the best-maintained vehicle. Pay attention to transmission smoothness, especially from stops and during slow-speed maneuvering where S tronic issues manifest. Listen for unusual noises, check for warning lights, and ensure all technology features function correctly. The right 2023 A4 delivers years of refined luxury motoring at a fraction of new car costs.

FAQs

References

1. Edmunds. (2025). 2023 Audi A4 Value and Depreciation Analysis. https://www.edmunds.com/audi/a4/2023/appraisal-value/
2. J.D. Power. (2023). Vehicle Dependability Study – Audi A4. https://www.jdpower.com/cars/audi/a4/2023
3. iSeeCars. (2023). Audi A4 Reliability Ratings and Analysis. https://www.iseecars.com/audi/a4/2023/reliability
4. Car and Driver. (2023). 2023 Audi A4 Full Test and Performance Data. https://www.caranddriver.com/audi/a4-2023
5. U.S. News & World Report. (2023). 2023 Audi A4 Reliability Rankings. https://cars.usnews.com/cars-trucks/audi/a4/2023/reliability
6. Ross-Tech Forums. (2Type 2023). Audi A4 B9 Transmission Technical Discussions. https://forums.ross-tech.com/audi-a4-transmission