Audi R8 V10 7-speed DSG dual-clutch transmission PKL 0BZ300045G

Transmission Code: PKL

Part Number: 0BZ300045G (0BZ 300 045 G)

Generation: Type 42 Facelift (2012–2015)

Application: 5.2 FSI V10 / V10 Plus / Spyder

The PKL is a 7-speed S-tronic dual-clutch transmission (DCT) from the 0BZ family, specifically engineered for the facelifted first-generation Audi R8 (Type 42). Introduced to replace the jerky single-clutch R-tronic, the PKL gearbox transformed the R8’s performance by providing seamless, lightning-fast gear changes with virtually no interruption in power delivery.

Technical Specifications

• Gearbox Type: 7-Speed Dual-Clutch (Wet-Clutch DSG).

• Torque Rating: Designed to handle the $540\text{ Nm}$ peak torque of the V10 with a significant safety factor.

• Drive System: Quattro permanent all-wheel drive (viscous coupling to the front axle).

• Ratio Set: Close-ratio performance gearing for high-RPM power band.

• Weight: Approx. $120\text{ kg}$ (including internal differentials).

Key Performance Features

• Launch Control: Standard on the PKL code, allowing for optimized $0\text{–}100\text{ km/h}$ sprints in as little as $3.5\text{ seconds}$.

• Triple-Path Cooling: Features a high-capacity dedicated oil cooling circuit to manage the extreme heat generated by the $8,700\text{ RPM}$ V10 engine.

• Integrated Center Diff: Unlike standard Audi DSG units, the 0BZ has an integrated drive for the longitudinal shaft leading to the front wheels.

• Dual Wet Clutches: Utilizes two independent clutch packs in an oil bath, ensuring smooth engagement in traffic and aggressive “snap” shifts in Sport mode.

Professional Installation & Cataloging Notes

1. Immobilizer / Component Protection: The PKL transmission contains a TCU (Transmission Control Unit) that is part of the vehicle’s anti-theft system. After installation, the car will enter “Emergency Mode” until the Component Protection is removed via Audi ODIS (online connection to Audi HQ required).

2. Oil Specifications: Requires two distinct fluids:

   • Clutch/Hydraulic Side: G 052 529 A2 (S-tronic Fluid).

   • Gear/Differential Side: G 052 145 S2 (75W90 Axle Oil).

3. Basic Settings: Following installation, a Clutch Kiss-Point Calibration must be performed. This ensures the TCU knows exactly where the friction plates engage, preventing “creeping” issues or harsh engagement from a standstill.

4. Hardware: The bolts connecting the transmission to the $5.2\text{L}$ V10 engine block are specialized aluminum/steel stretch bolts. Reusing them can lead to vibration or casing fractures. Always use new hardware.

Inventory Note: The PKL is a direct technical equivalent to the NXZ and PTX codes used during the 2012–2015 production run. It is the definitive gearbox upgrade for the late Type 42 R8, offering a night-and-day difference in drivability over the older R-tronic units.