Audi R8 V10 7-speed DSG dual-clutch transmission SLE 0BZ300045M

Transmission Code: SLE Part Number: 0BZ300045M (0BZ 300 045 M) Generation: Gen 2 (Type 4S) Pre-Facelift Application: 5.2 FSI V10 / V10 Plus (2015–2018)

The SLE is a high-performance 7-speed S-tronic dual-clutch transmission designed for the second-generation Audi R8 (Type 4S). While it shares the 0BZ family designation with late first-gen units (like the PKL), the SLE is a significantly evolved version tailored for the 4S chassis. It features updated mechatronics and gear ratios to support the increased output of the Gen 2 V10 engine, which produces up to 610 PS and 560 Nm in the V10 Plus trim.

Technical Specifications

• Gearbox Family: DL800 (Audi designation: 0BZ).

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

• Clutch Type: Two electro-hydraulically controlled multi-plate clutches in a shared oil bath.

• Torque Capacity: Optimized for 560 Nm+ with aggressive shift logic.

• AWD Integration: Outputs to an electronically controlled multi-plate front clutch (replaces the older viscous coupling).

Key Engineering Advancements

• Coasting Mode: When in “Comfort” mode and traveling above 55 km/h, the SLE can disengage both clutches when the driver lifts off the throttle, allowing the car to coast and save fuel.

• Faster Shift Times: The 4S-generation SLE features revised shift solenoids and software that provide even crisper shifts in “Performance” mode compared to Gen 1 units.

• Compact Three-Shaft Layout: Measuring less than 60 cm in length, the transmission is mounted behind the engine to maintain the R8’s ideal 42:58 weight distribution.

• Integrated Locking Differential: Features a mechanical rear limited-slip differential integrated directly into the transmission housing for superior exit-corner traction.

Professional Installation & Cataloging Notes

1. Component Protection (ODIS Required): Like all 4S-generation parts, the SLE transmission is part of the Audi Immobilizer system. A used or new unit will not function (locked in Safe Mode) until the “Component Protection” is cleared by an authorized Audi technician with an online connection to the factory server.

2. AWD System Change: The SLE is designed to work with the electronic front axle clutch. If you are attempting a cross-generational swap, note that the electronics and propeller shaft interfaces are different from the Gen 1 (Type 42) systems.

3. Fluid & Service:

   • Clutch Oil: G 052 529 A2.

   • Gear/Diff Oil: G 052 145 S2.

   • Tip: Even if the transmission has low mileage, the external filter (0BZ 325 429) should be replaced during installation.

4. Software Matching: The SLE code is specifically mapped for the 540 PS / 610 PS V10 variants. Using this in an RWS (Rear Wheel Series) car is not recommended without a complete TCU re-flash to account for the lack of front-axle drive load.

Inventory Note: The SLE is often interchangeable with codes like QZV or SBF depending on the production month, but “SLE” remains one of the most common codes for the early 4S V10 Plus models.