ASTON MARTIN VIRAGE Gearbox MK2 2011-2012 8G43-70041-AD

part number 8G43-70041-AD identifies the 6-speed Touchtronic II Automatic Transmission (Transaxle) specifically calibrated for the Aston Martin Virage (2011–2012).

The Virage was a “bridge” model between the DB9 and the DBS, and as such, its gearbox features a specific software tune and internal hardware revision that distinguishes it from the standard DB9 units of that era.

1. Technical Specifications

• Manufacturer: ZF Friedrichshafen (Germany).

• Type: 6HP26 torque-converter automatic, rear mid-mounted as a transaxle.

   

• Drive Connection: Linked to the front-mounted V12 engine via a Carbon Fiber Propeller Shaft encased in a cast aluminum torque tube.

   

• Shift Control: Push-button PRND glass buttons on the “waterfall” center console and magnesium steering-column-mounted paddles.

   

• Final Drive Ratio: 3.46:1.

2. Why the “8G43-70041-AD” suffix matters

The “AD” suffix is crucial. It represents a specific evolution in the Touchtronic II system:

• Virage Calibration: The Virage transmission was tuned to be 50% faster in Sport Mode compared to the contemporary DB9, borrowing shifting logic from the DBS.

• Hardware Refinement: This revision includes updated internal seals and a specific valve body (Mechatronic) that resolved “clunking” issues found in earlier 8G43 prefixes.

• Compatibility: While it physically bolts up to a DB9 or Rapide, the TCM (Transmission Control Module) internal to this unit is flashed with Virage-specific maps for the 490 bhp engine.

3. Common Maintenance & Issues

1. The “ZF Leaking Sleeve”: The plastic electrical connector sleeve on the side of the gearbox is prone to weeping oil. If left unchecked, oil can wick into the harness and cause electrical faults.

2. Fluid Service: Although Aston Martin originally called this a “sealed for life” unit, ZF recommends a fluid and filter (pan) change every 50,000–60,000 miles to preserve shift quality.

3. Transmission Fault – Limp Mode: Often caused by a failing Mechatronic unit (the internal computer/valve body). In 2026, many owners opt for a Mechatronic rebuild rather than a full gearbox replacement.

4. Market Pricing (2026 Estimates)

The Virage was only produced for about 18 months (~1,000 units), making its specific gearbox relatively rare on the used market.

Installation Note: The “Clutch” Adaptation

Even though this is a torque-converter automatic, the car’s computer must perform a “Drive Cycle Adaptation” after installation. This teaches the car the specific tolerances of the new internal clutches and prevents harsh shifts between 2nd and 3rd gear.