The 1999 Audi A6 represents the second generation (C5) of Audi's executive sedan, marking a significant leap in design and engineering. Introduced in late 1997 for the 1998 model year in North America, this sleek sedan boasts a distinctive aerodynamic silhouette. Available primarily as a sedan, with an Avant (wagon) variant also offered, key trims included the 2.8 V6 and later the more powerful 2.7T V6 and 4.2 V8. Its sophisticated quattro all-wheel-drive system and elegant interior made it a popular choice, offering a compelling blend of luxury, performance, and advanced technology for its era. New prices ranged from roughly $33,000 to $45,000.
The Good
The 1999 Audi A6 offers a refined driving experience, particularly with its legendary quattro all-wheel drive providing superior grip and confidence. Its elegant, understated design and high-quality interior materials exude luxury, appealing to emotional buyers seeking sophistication. Practically, it provides comfortable seating, decent efficiency for its class, and a strong value proposition in the used market for a premium sedan.
The Bad
Watch out for common issues like control arm bushing wear, electrical gremlins (especially related to dashboard displays and window regulators), and potential automatic transmission problems. Maintenance costs can be high due to complex engineering and specialized parts. The 2.7T engine, while potent, is known for turbocharger failures and oil leaks.
1999 Audi A6: Quick Overview
- Engine Options:
- 2.8-liter V6 (naturally aspirated, 30-valve)
- 2.7-liter V6 Bi-Turbo (introduced later in the C5 generation, though 1999 primarily saw the 2.8L in the mainstream A6. The 2.7T was available in the S4 and later came to the A6)
- 4.2-liter V8 (introduced later in the C5 generation, specifically for the A6 4.2 model)
- Horsepower:
- 2.8L V6: Approximately 200 hp
- 2.7T V6: Approximately 250 hp (for later 2.7T A6 models)
- 4.2L V8: Approximately 300 hp (for later 4.2 A6 models)
- Fuel Economy (EPA estimates for 1999 2.8L):
- 2.8L V6 FWD Automatic: Around 19 MPG city / 28 MPG highway
- 2.8L V6 Quattro Automatic: Around 17 MPG city / 24 MPG highway
- 0-60 MPH Times (approximate):
- 2.8L V6: 8.0-8.5 seconds
- 2.7T V6: 6.5-7.0 seconds
- 4.2L V8: 6.0-6.5 seconds
- Towing Capacity:
- Generally not officially rated for heavy towing in the US market as a primary feature. If equipped with a hitch, light towing capacity (e.g., small utility trailers) might be up to 2,000-2,500 lbs, but this is highly dependent on specific setup and local regulations.
- Trim-Level Features:
- A6 2.8 (Base/Standard): Standard features typically included automatic climate control, power windows/locks/mirrors, leather upholstery, wood trim, an AM/FM cassette stereo system, cruise control, 16-inch alloy wheels, and a comprehensive airbag system. Audi's electronic stability program (ESP) and anti-lock brakes (ABS) were also standard. Many were equipped with the quattro all-wheel-drive system. Optional features often included heated seats, a Bose premium sound system, a CD changer, a power sunroof, and xenon headlights.
- Later Trims (2.7T/4.2): These introduced more performance-oriented features, often building upon the 2.8's standard equipment with larger wheels, sport suspensions, and more luxurious interior appointments. The 4.2, for example, often came standard with sport seats, the Bose sound system, and more extensive leather and wood trim, plus unique exterior styling elements.
1999 Audi A6 Specifications
Vehicle Information
| Year | 1999 |
| Make | Audi |
| Model | A6 |
| Trim | - |
| Style | All-Wheel Drive |
| Type | Sedan |
| Category | Minicompact Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | NECKARSULM |
Dimensions
| Doors | 4-Door |
| Curb Weight | 3770 pounds |
| Gross Vehicle Weight Rating | - |
| Overall Height | 57.10 inches |
| Overall Length | 192.00 inches |
| Overall Width | 71.30 inches |
| Wheelbase Length | 108.60 inches |
| Standard Seating | 5 |
Engine & Performance
| Engine | 2.8-L V-6 DOHC 30V |
| Engine Size | 2.8L |
| Engine Cylinders | 6 |
| Transmission | 5-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 5-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $35,400 |
| Invoice Price | $31,347 |
| Delivery Charges | - |
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What Problems Does the 1999 Audi A6 Have?
The 1999 Audi A6, as an early C5 generation vehicle, is known for several recurring issues that prospective owners should be aware of. One of the most frequently reported problems involves the front suspension system, particularly the multiple control arms and their bushings. These components are prone to wear, leading to clunking noises, imprecise steering, and requiring relatively frequent replacement, which can be costly due to the complex multi-link design.
Electrical issues are also common. Dashboard instrument cluster displays (known as the "information display" or "DOT matrix display") often suffer from pixel degradation, making them unreadable. Window regulators and central locking systems can fail, requiring repairs. Malfunctions in the heating, ventilation, and air conditioning (HVAC) system, such as blend door issues or blower motor failures, are also reported.
Automatic transmissions, especially the ZF 5HP19 found in many models, can develop problems like harsh shifting, delayed engagement, or complete failure, particularly if fluid changes were neglected. The torque converter can also be a source of trouble. Engine oil leaks, often from valve cover gaskets or cam chain tensioner seals, are a persistent nuisance. For later models equipped with the 2.7T engine, turbocharger failure is a significant and expensive concern.
Recalls for the 1999 Audi A6 included issues like potential problems with the ignition switch, which could lead to a loss of electrical power, and concerns regarding the brake light switch. It's crucial for any potential buyer to check if all relevant recalls have been addressed. Long-term reliability concerns primarily stem from the complexity of its German engineering, leading to higher labor costs and specialized part requirements for repairs. Neglected maintenance exacerbates these issues, making a well-documented service history vital.
Electrical issues are also common. Dashboard instrument cluster displays (known as the "information display" or "DOT matrix display") often suffer from pixel degradation, making them unreadable. Window regulators and central locking systems can fail, requiring repairs. Malfunctions in the heating, ventilation, and air conditioning (HVAC) system, such as blend door issues or blower motor failures, are also reported.
Automatic transmissions, especially the ZF 5HP19 found in many models, can develop problems like harsh shifting, delayed engagement, or complete failure, particularly if fluid changes were neglected. The torque converter can also be a source of trouble. Engine oil leaks, often from valve cover gaskets or cam chain tensioner seals, are a persistent nuisance. For later models equipped with the 2.7T engine, turbocharger failure is a significant and expensive concern.
Recalls for the 1999 Audi A6 included issues like potential problems with the ignition switch, which could lead to a loss of electrical power, and concerns regarding the brake light switch. It's crucial for any potential buyer to check if all relevant recalls have been addressed. Long-term reliability concerns primarily stem from the complexity of its German engineering, leading to higher labor costs and specialized part requirements for repairs. Neglected maintenance exacerbates these issues, making a well-documented service history vital.
How long will the 1999 Audi A6 last?
With proper and diligent maintenance, a 1999 Audi A6 can comfortably exceed 150,000 to 200,000 miles, and some well-cared-for examples can even reach 250,000 miles or more, offering 15-20+ years of service. Its core engine and drivetrain components (especially the 2.8L V6 and quattro system) are generally robust. However, achieving this longevity demands regular fluid changes, timely replacement of wear items like timing belts (for the 2.8L), and proactive addressing of known weaknesses like suspension components and electrical issues. Neglect, particularly regarding transmission fluid or cooling system maintenance, drastically reduces lifespan. Long-term durability is strong structurally, but the intricate systems and higher cost of parts mean it's not a "set it and forget it" vehicle. The electronic components and plastic interior parts tend to show their age over time, often needing repair or replacement.
What Technology & Safety Features are Included?
For its era, the 1999 Audi A6 offered a sophisticated array of built-in technology and safety features. Standard entertainment included an AM/FM cassette stereo system, often integrated into a well-designed center console. Many models were equipped with an optional Bose premium sound system, significantly enhancing audio quality. A CD changer, typically mounted in the trunk, was a common optional extra.
Driver-assistance features were less common than in modern vehicles but included standard anti-lock brakes (ABS) and Audi's Electronic Stability Program (ESP), a pioneering feature for enhanced vehicle control, particularly in adverse conditions. Cruise control was also standard, providing convenience on long drives.
Safety was a strong point for Audi. The 1999 A6 came standard with dual front airbags, side airbags (for front occupants), and optional rear side airbags, providing comprehensive occupant protection. Three-point seatbelts for all five seating positions and child seat anchor points were also standard.
In terms of crash-test ratings, the C5 generation Audi A6 generally performed well. The National Highway Traffic Safety Administration (NHTSA) gave the 1999 A6 five stars for driver and front passenger frontal impact protection and four stars for front and rear side impact protection. The Insurance Institute for Highway Safety (IIHS) rated the C5 A6 "Good" in its moderate overlap frontal crash test, which was an excellent rating for vehicles of that period. Optional features like xenon headlights provided superior nighttime visibility, further contributing to safety. The overall integration of these features contributed to a feeling of security and advanced luxury.
Driver-assistance features were less common than in modern vehicles but included standard anti-lock brakes (ABS) and Audi's Electronic Stability Program (ESP), a pioneering feature for enhanced vehicle control, particularly in adverse conditions. Cruise control was also standard, providing convenience on long drives.
Safety was a strong point for Audi. The 1999 A6 came standard with dual front airbags, side airbags (for front occupants), and optional rear side airbags, providing comprehensive occupant protection. Three-point seatbelts for all five seating positions and child seat anchor points were also standard.
In terms of crash-test ratings, the C5 generation Audi A6 generally performed well. The National Highway Traffic Safety Administration (NHTSA) gave the 1999 A6 five stars for driver and front passenger frontal impact protection and four stars for front and rear side impact protection. The Insurance Institute for Highway Safety (IIHS) rated the C5 A6 "Good" in its moderate overlap frontal crash test, which was an excellent rating for vehicles of that period. Optional features like xenon headlights provided superior nighttime visibility, further contributing to safety. The overall integration of these features contributed to a feeling of security and advanced luxury.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
1999 Audi A6 Prices and Market Value
When new, the 1999 Audi A6 2.8 sedan typically started around $33,000, while quattro models and those with more options could push the price towards $40,000-$45,000. For the later-introduced, higher-performance variants like the A6 4.2, prices could exceed $50,000.
In today's used market, a 1999 Audi A6 has depreciated significantly, with current prices typically ranging from $2,000 to $6,000, depending heavily on condition, mileage, maintenance history, and specific trim. Exceptional, low-mileage, meticulously maintained examples might fetch slightly more from enthusiasts, but they are rare. Factors affecting resale value include the extensive depreciation common for older luxury European vehicles, higher potential maintenance costs deterring buyers, and the availability of newer, more efficient cars. While initial depreciation was steep, these vehicles have largely hit their depreciation floor, making them attractive for those seeking affordable luxury, provided they budget for upkeep.
In today's used market, a 1999 Audi A6 has depreciated significantly, with current prices typically ranging from $2,000 to $6,000, depending heavily on condition, mileage, maintenance history, and specific trim. Exceptional, low-mileage, meticulously maintained examples might fetch slightly more from enthusiasts, but they are rare. Factors affecting resale value include the extensive depreciation common for older luxury European vehicles, higher potential maintenance costs deterring buyers, and the availability of newer, more efficient cars. While initial depreciation was steep, these vehicles have largely hit their depreciation floor, making them attractive for those seeking affordable luxury, provided they budget for upkeep.
1999 Audi A6 Cost of Ownership
Owning a 1999 Audi A6 is generally considered costly, not economical. Insurance premiums, while less than a new luxury car, can still be higher than average due to its 'luxury' designation and repair complexity. Fuel costs will depend on the engine (the 2.8L is reasonable, the 2.7T and 4.2 are thirstier) and local prices, typically requiring premium unleaded fuel.
Maintenance and repair costs are the primary drivers of expense. Parts are generally more expensive than domestic or Japanese counterparts, and specialized labor is often required. Common issues like suspension, electrical, and potential transmission repairs can be several thousands of dollars. Budgeting $1,000-$2,000 annually for routine maintenance and unexpected repairs is a realistic expectation. This car is best suited for DIY enthusiasts or those with a healthy slush fund for its upkeep.
Maintenance and repair costs are the primary drivers of expense. Parts are generally more expensive than domestic or Japanese counterparts, and specialized labor is often required. Common issues like suspension, electrical, and potential transmission repairs can be several thousands of dollars. Budgeting $1,000-$2,000 annually for routine maintenance and unexpected repairs is a realistic expectation. This car is best suited for DIY enthusiasts or those with a healthy slush fund for its upkeep.
1999 Audi A6 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
18.50 gallons
City Mileage
17 miles/gallon
Highway Mileage
26 miles/gallon
1999 Audi A6 Safety Rating
NHTSA
IIHS
1999 Audi A6 Warranty
Basic
Original warranty
36 months / 50,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
36 months / 50,000 miles
Estimated remaining
Expired
Rust
Original warranty
144 months / unlimited miles
Estimated remaining
Expired
1999 Audi A6 Insurance
Insurance for a 1999 Audi A6 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1999 Audi A6 Compare to Other Sedan?
The 1999 Audi A6 competed fiercely in the executive sedan segment against formidable German and Japanese rivals. Its primary competitors included the BMW 5 Series (E39 generation), Mercedes-Benz E-Class (W210 generation), and the Lexus GS (S160 generation).
Performance: The A6 2.8 (200 hp) was competent but often seen as less sporting than a BMW 528i (193 hp) or 530i (225 hp), which emphasized a more driver-focused, rear-wheel-drive dynamic. The E-Class (E320 with 221 hp) offered a smoother, more comfort-oriented ride. The Lexus GS 300 (220 hp) and GS 400 (300 hp V8) delivered strong acceleration with Toyota's renowned smoothness. The A6 stood out with its standard or optional quattro AWD, offering superior traction and all-weather capability that none of its direct RWD competitors could match without a significant option upgrade or a different model entirely. Later A6 2.7T and 4.2 models closed the performance gap significantly, offering compelling power.
Features: All these cars offered luxurious interiors, high-quality materials, and a range of power accessories, climate control, and premium audio. The A6 often felt more contemporary in design than the W210 E-Class, and its interior quality was on par with or arguably superior to the E39 BMW. Lexus emphasized impeccable build quality and reliability. Audi's quattro system was a key differentiating feature, often standard where others offered RWD only or more basic AWD systems.
Reliability: This is where the A6 sometimes lagged behind its rivals. While well-built, the C5 A6 is known for more frequent and often costlier repairs (e.g., suspension, electrical, turbo issues on the 2.7T) than a Lexus GS, which is often lauded for bulletproof reliability. The BMW E39 and Mercedes W210 also had their share of age-related issues but were generally perceived as slightly less complex or had more accessible parts in some cases.
Price: New prices were comparable across the segment. In the used market, all have depreciated significantly. The Lexus GS typically holds its value better due to its reliability reputation.
Alternatives: For performance and driving dynamics, a BMW E39 5 Series is often considered superior by enthusiasts. For absolute reliability and lower long-term costs, the Lexus GS is a strong contender. However, for those prioritizing all-weather traction, a sophisticated interior, and understated European luxury at a bargain price, the A6 remains a unique choice.
Performance: The A6 2.8 (200 hp) was competent but often seen as less sporting than a BMW 528i (193 hp) or 530i (225 hp), which emphasized a more driver-focused, rear-wheel-drive dynamic. The E-Class (E320 with 221 hp) offered a smoother, more comfort-oriented ride. The Lexus GS 300 (220 hp) and GS 400 (300 hp V8) delivered strong acceleration with Toyota's renowned smoothness. The A6 stood out with its standard or optional quattro AWD, offering superior traction and all-weather capability that none of its direct RWD competitors could match without a significant option upgrade or a different model entirely. Later A6 2.7T and 4.2 models closed the performance gap significantly, offering compelling power.
Features: All these cars offered luxurious interiors, high-quality materials, and a range of power accessories, climate control, and premium audio. The A6 often felt more contemporary in design than the W210 E-Class, and its interior quality was on par with or arguably superior to the E39 BMW. Lexus emphasized impeccable build quality and reliability. Audi's quattro system was a key differentiating feature, often standard where others offered RWD only or more basic AWD systems.
Reliability: This is where the A6 sometimes lagged behind its rivals. While well-built, the C5 A6 is known for more frequent and often costlier repairs (e.g., suspension, electrical, turbo issues on the 2.7T) than a Lexus GS, which is often lauded for bulletproof reliability. The BMW E39 and Mercedes W210 also had their share of age-related issues but were generally perceived as slightly less complex or had more accessible parts in some cases.
Price: New prices were comparable across the segment. In the used market, all have depreciated significantly. The Lexus GS typically holds its value better due to its reliability reputation.
Alternatives: For performance and driving dynamics, a BMW E39 5 Series is often considered superior by enthusiasts. For absolute reliability and lower long-term costs, the Lexus GS is a strong contender. However, for those prioritizing all-weather traction, a sophisticated interior, and understated European luxury at a bargain price, the A6 remains a unique choice.
Final Verdict: Is the 1999 Audi A6 a Good Sedan?
The 1999 Audi A6 is an ideal choice for the discerning buyer who appreciates understated European luxury, sophisticated design, and the assured traction of quattro all-wheel drive, but is also prepared for the associated ownership costs of an aging German executive car. It's an excellent used buy for someone seeking a premium driving experience at a highly depreciated price point, provided they are either mechanically inclined for DIY repairs or have a substantial budget for professional maintenance.
It is definitely worth buying for enthusiasts or those who understand that affordable initial purchase price means higher ongoing expenses. It's not for someone seeking absolute lowest ownership costs or bulletproof reliability of a Japanese sedan. Look for well-maintained examples with complete service records, preferably those with the naturally aspirated 2.8L V6 for potentially fewer complex issues than the 2.7T. It offers tremendous value in terms of luxury and comfort for its price.
It is definitely worth buying for enthusiasts or those who understand that affordable initial purchase price means higher ongoing expenses. It's not for someone seeking absolute lowest ownership costs or bulletproof reliability of a Japanese sedan. Look for well-maintained examples with complete service records, preferably those with the naturally aspirated 2.8L V6 for potentially fewer complex issues than the 2.7T. It offers tremendous value in terms of luxury and comfort for its price.
Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.