The Volkswagen Passat B5.5 2.5 TDI V6 Tiptronic, produced from September 2000 to July 2003, represented a refined iteration of the popular mid-size sedan. Positioned as a premium offering within the B5.5 Passat range, this variant combined a powerful six-cylinder diesel engine with a convenient automatic transmission, appealing to drivers seeking both performance and ease of use. It was primarily marketed in Europe, where diesel engines held a significant market share, offering a blend of fuel efficiency and respectable power output for long-distance cruising and everyday driving. The B5.5 designation signifies a substantial facelift of the B5 Passat, featuring revised styling, improved interior materials, and updated technology.
Technical Specifications
| Brand | Volkswagen |
| Model | Passat |
| Generation | Passat (B5.5) |
| Type (Engine) | 2.5 TDI V6 (150 Hp) Tiptronic |
| Start of production | September, 2000 |
| End of production | July, 2003 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.6 l/100 km (20.3 US mpg, 24.4 UK mpg, 8.6 km/l) |
| Fuel consumption (extra urban) | 6.2 l/100 km (37.9 US mpg, 45.6 UK mpg, 16.1 km/l) |
| Fuel consumption (combined) | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| CO2 emissions | 219 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.7 sec |
| Acceleration 0 – 62 mph | 10.7 sec |
| Acceleration 0 – 60 mph | 10.2 sec |
| Maximum speed | 214 km/h (132.97 mph) |
| Weight-to-power ratio | 11.3 kg/Hp, 88.5 Hp/tonne |
| Weight-to-torque ratio | 5.5 kg/Nm, 183 Nm/tonne |
| Power | 150 Hp @ 4000 rpm |
| Power per litre | 60.1 Hp/l |
| Torque | 310 Nm @ 1500 rpm (228.64 lb.-ft. @ 1500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | AKN |
| Engine displacement | 2496 cm3 (152.32 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 78.3 mm (3.08 in.) |
| Piston Stroke | 86.4 mm (3.4 in.) |
| Compression ratio | 19.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.4 l (5.71 US qt | 4.75 UK qt) |
| Coolant | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1694 kg (3734.63 lbs.) |
| Max. weight | 2120 kg (4673.8 lbs.) |
| Max load | 426 kg (939.17 lbs.) |
| Trunk (boot) space – minimum | 475 l (16.77 cu. ft.) |
| Trunk (boot) space – maximum | 800 l (28.25 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4703 mm (185.16 in.) |
| Width | 1746 mm (68.74 in.) |
| Height | 1462 mm (57.56 in.) |
| Wheelbase | 2702 mm (106.38 in.) |
| Front track | 1515 mm (59.65 in.) |
| Rear (Back) track | 1515 mm (59.65 in.) |
| Minimum turning circle | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Trailing arm, Torsion |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/55 R16 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The heart of the Passat 2.5 TDI V6 Tiptronic is the AKN engine code, a 2.5-liter V6 diesel engine. This engine utilized direct injection technology, injecting fuel directly into the combustion chamber under extremely high pressure. This system, coupled with a turbocharger and intercooler, allowed for increased power output and improved fuel efficiency. The engine featured a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for enhanced performance. The “Tiptronic” transmission was a five-speed automatic gearbox offering both fully automatic operation and a manual shift mode, allowing drivers to exert more control over gear selection. This transmission was known for its smooth shifting characteristics, although it wasn’t as sporty or responsive as a traditional manual transmission.
Driving Characteristics
The 2.5 TDI V6 Tiptronic offered a comfortable and refined driving experience. While not a sports sedan, the 150 horsepower and 310 Nm (228.64 lb-ft) of torque provided adequate acceleration for everyday driving and highway cruising. The automatic transmission, while smooth, did result in a slight power loss compared to the available manual transmission options. The gear ratios were tuned for fuel efficiency and relaxed cruising, rather than outright performance. Acceleration from 0-100 km/h (0-62 mph) took approximately 10.7 seconds, which was respectable for a diesel-powered sedan of that era. The engine delivered strong low-end torque, making it easy to overtake and navigate traffic.
Equipment & Trim Levels
The 2.5 TDI V6 Tiptronic typically came well-equipped, reflecting its position as a premium trim level. Standard features often included climate control, power windows and mirrors, central locking, an upgraded audio system, and alloy wheels. Interior upholstery was typically cloth or leather, with wood trim accents available as an option. Optional extras could include a sunroof, navigation system, heated seats, and parking sensors. The B5.5 Passat also benefited from improved interior materials and build quality compared to the earlier B5 models.
Chassis & Braking
The Passat B5.5 featured an independent multi-link suspension at the front, providing a comfortable ride and good handling characteristics. The rear suspension utilized a trailing arm torsion beam setup, which was a cost-effective solution that still offered reasonable ride quality. Brakes consisted of ventilated discs at the front and solid discs at the rear. Anti-lock Braking System (ABS) was standard, enhancing safety and control during emergency braking situations. The suspension was tuned for comfort, prioritizing a smooth ride over aggressive handling.
Market Reception & Comparison
The Passat 2.5 TDI V6 Tiptronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and spacious interior. However, some critics noted that the automatic transmission could feel slightly sluggish compared to the manual options. Compared to the 1.8-liter gasoline variants, the 2.5 TDI offered significantly more torque and better fuel economy, making it a popular choice for drivers who covered long distances. Compared to the more powerful V6 gasoline models, the TDI offered a more economical alternative without sacrificing too much performance. Reliability was generally good, although the turbocharger and fuel injection system could require maintenance over time.
Legacy
The Volkswagen Passat B5.5 2.5 TDI V6 Tiptronic remains a popular choice in the used car market, particularly in Europe. The AKN engine is known for its durability and relatively straightforward maintenance. However, potential buyers should be aware of the potential for turbocharger and fuel injector issues. The combination of a powerful diesel engine, comfortable ride, and spacious interior has ensured that this variant remains a desirable option for those seeking a reliable and practical mid-size sedan. Parts availability is generally good, and the Passat B5.5 enjoys a strong following among enthusiasts.
