Audi A6 C5: Allroad vs. Sedan Comparison
The Audi A6 C5: Two Concepts, One Platform
The Audi A6 C5 (1997-2004) is considered a milestone in Audi history. The choice between the elegant sedan and the adventurous Allroad presents many buyers with an interesting decision.
The Contenders at a Glance
Audi A6 C5 Sedan
| Property | Details |
|---|---|
| Production years | 1997-2004 |
| Body style | Sedan/Avant |
| Ground clearance | 140 mm |
| Weight | 1,490-1,650 kg |
| Drive | FWD or Quattro |
Audi A6 C5 Allroad
| Property | Details |
|---|---|
| Production years | 1999-2005 |
| Body style | Wagon (Avant-based) |
| Ground clearance | 142-208 mm (variable) |
| Weight | 1,830-1,950 kg |
| Drive | Quattro only |
Current Price Comparison
Average Prices by Engine
| Model | Engine | Avg. Price | Listings |
|---|---|---|---|
| A6 2.4 quattro | V6 Petrol | €4,200 | 28 |
| A6 2.7T quattro | V6 Biturbo | €5,800 | 15 |
| A6 2.5 TDI quattro | V6 Diesel | €4,500 | 42 |
| Allroad 2.7T | V6 Biturbo | €7,200 | 12 |
| Allroad 2.5 TDI | V6 Diesel | €5,900 | 18 |
| Allroad 4.2 V8 | V8 Petrol | €9,500 | 5 |
The Allroad costs on average 25-40% more than the comparable sedan.
Technical Differences
Suspension
Sedan:
- Conventional steel suspension
- Optional: Sport suspension
- Lower complexity
- Cheaper repairs
Allroad:
- Pneumatic air suspension
- Four height levels (142-208 mm)
- Adaptive dampers
- Higher maintenance costs
Drivetrain
| Aspect | Sedan | Allroad |
|---|---|---|
| Quattro | Optional | Standard |
| Gearing | Standard | Lower axle ratio |
| Locking differential | Optional | Standard (rear) |
| Off-road capability | Limited | Good |
Strengths and Weaknesses
Sedan – Advantages
- Lower purchase costs: 25-40% cheaper
- Lower running costs: Simpler technology
- Better fuel economy: 0.5-1.0 L/100km less
- Wider engine choice: FWD also available
Sedan – Disadvantages
- Limited ground clearance: Problems on poor roads
- Less all-weather capable: Limited without Quattro
- Lower recognition value: Less distinctive
Allroad – Advantages
- Versatility: City, highway, dirt road
- Cult status: Design icon of the 2000s
- Air suspension comfort: Sedan-like gliding
- Value stability: Growing collector interest
Allroad – Disadvantages
- Air suspension: Prone to failure and expensive to repair
- Higher consumption: More weight, more thirst
- Special parts: Limited availability
- Complexity: More electronics, more failure points
Buying Guide
Who Should Choose the Sedan?
- Commuters: Low operating costs
- Budget buyers: Affordable entry to Audi quality
- City drivers: More compact dimensions
- Pragmatists: Easy maintenance
Who Should Choose the Allroad?
- Outdoor enthusiasts: Camping, skiing, hiking
- Enthusiasts: Design and exclusivity
- Long-distance drivers: Air suspension comfort
- Collectors: Youngtimer potential
Known Issues
Sedan – Typical Weak Points
| Problem | Frequency | Repair Costs |
|---|---|---|
| Timing chain (2.4/2.8) | Medium | €800-1,500 |
| Turbo (2.7T) | High | €1,200-2,500 |
| Transmission (Tiptronic) | Medium | €1,500-3,000 |
Allroad – Typical Weak Points
| Problem | Frequency | Repair Costs |
|---|---|---|
| Complete air suspension | Very high | €2,000-4,000 |
| Air compressor | High | €600-1,200 |
| Height sensor | High | €300-600 |
| Turbo (2.7T) | High | €1,200-2,500 |
Our Recommendation
Budget Under €5,000
Choose the sedan. The Allroad in this price range often has neglected air suspension. Restoration would exceed the budget.
Budget €5,000-8,000
Both possible. Check the Allroad’s air suspension condition carefully. Ideally, it has already been overhauled.
Budget Over €8,000
Allroad with documented history. In this segment, you’ll find well-maintained examples with already renewed technology.
Future Outlook
Price Development
| Model | Trend 2024-2026 | Reason |
|---|---|---|
| Sedan | Stable | High availability |
| Allroad | +10-15%/year | Youngtimer hype |
| Allroad 4.2 V8 | +15-20%/year | Collector model |
The Allroad is developing into a sought-after youngtimer, while the sedan remains an affordable used car.
Conclusion
The choice between A6 C5 Sedan and Allroad is a question of usage profile and risk tolerance. The sedan offers more car for the money, the Allroad more character and versatility.
Those seeking a reliable daily driver should choose the sedan. Those wanting something special and willing to invest in maintenance will love the Allroad.
Price data from our current market analysis. Details on the A6 C5 model page.