The Dq500 Transmission, also known as the VW DSG7, is a 7-speed dual-clutch automatic transmission developed by Volkswagen. Introduced in 2009, this robust gearbox is designed for high-torque applications, handling up to 500 Nm (and later upgraded to 600 Nm) in front-wheel and all-wheel-drive vehicles. This article provides a detailed look at the DQ500, covering its specifications, applications, gear ratios, and potential drawbacks.
DQ500 Transmission Specifications
The DQ500 stands apart from other DSG transmissions with its wet clutch system, designed for durability and higher torque capacity. Here’s a breakdown of key specifications:
- Production: Since 2009
- Type: Robotic, dual-clutch (DSG) automatic transmission
- Gears: 7
- Drive: Front-wheel drive / All-wheel drive
- Engine Compatibility: Up to 2.5L
- Torque Capacity: Up to 500 Nm (600 Nm in later versions)
- Recommended Oil: G 052 182 A2
- Oil Capacity: 7.6 Liters
- Oil Change Interval: Every 50,000 km
- Filter Change Interval: Every 50,000 km
- Lifespan: ~250,000 km
- Weight: 95.6 kg
DQ500 Gear Ratios
Gear ratios can vary slightly depending on the specific vehicle application. Here’s an example from a 2017 VW Golf R360S with a 2.0 TSI engine and DQ500 transmission:
| Gear | Ratio |
|---|---|
| Main | 4.059/3.450 |
| 1st | 3.562 |
| 2nd | 2.526 |
| 3rd | 1.678 |
| 4th | 1.022 |
| 5th | 0.788 |
| 6th | 0.761 |
| 7th | 0.635 |
| Reverse | 2.789 |
DQ500 Applications: Vehicles Equipped with the DQ500
The DQ500 transmission has been used in a wide range of Volkswagen Group vehicles, including:
- Audi: A3, Q3, TT
- Seat: Alhambra
- Skoda: Kodiaq
- Volkswagen: Arteon, Golf, Passat, Passat Alltrack, Sharan, Teramont, Tiguan, Transporter (T5 & T6)
Common DQ500 Transmission Problems
While generally robust, the DQ500 is not without its potential issues:
- Mechatronic Unit Failure: Contamination of solenoids in the mechatronic unit due to clutch wear can lead to rough shifting and other problems. Regular fluid changes are crucial for preventing this.
- Overheating: A clogged heat exchanger can cause the transmission to overheat, potentially damaging the electronic control unit (which is not repairable and requires replacement).
- Differential Issues: Aggressive driving or significant engine tuning can lead to premature differential failure.
- High-Mileage Wear: At higher mileage (over 200,000 km), issues like bearing noise, shaft play, and dual-mass flywheel failure can occur.
Conclusion: The DQ500 – A Powerful and Efficient Transmission
The DQ500 transmission offers a blend of performance and efficiency for high-powered vehicles. Its dual-wet clutch design enables smooth, rapid gear changes and accommodates substantial torque. However, like any complex system, it requires proper maintenance and care to ensure longevity and avoid potential problems. Regular fluid and filter changes, along with mindful driving habits, are key to maximizing the lifespan of the DQ500 transmission.
