Audi R8 V10 facelift Spyder instrument cluster speedometer 420.920.930.T

Part Number: 420.920.930.T (420920930T)

Alternate Part Number: 420.920.930.TX (Exchange unit)

Generation: Type 42 Facelift (2013–2015)

Application: 5.2 FSI V10 / V10 Plus (Convertible/Spyder)

The 420.920.930.T is the premium instrument cluster specifically designed for the facelifted first-generation Audi R8 Spyder. This unit is distinguished by its white-on-black illumination and the inclusion of the V10 logo on the tachometer face. As a facelift-specific component, it features updated font graphics and a high-resolution central Driver Information System (DIS) compared to the 2007–2012 models.

Technical Specifications

• Max Speedometer Scale: $350\text{ km/h}$ (Metric/European spec).

• Redline (Tachometer): $8,700\text{ RPM}$ (Specific to the $5.2\text{L}$ V10 engine).

• Display: Multi-function DIS with Lap Timer, Oil Temperature, and Digital Speedometer.

• Voltage: $12\text{V}$ DC.

• Chassis Compatibility: Specifically coded for the Spyder (Convertible) to include roof-status icons and convertible-top warning symbols that are absent in the Coupe variant.

Key Features of the Facelift “T” Revision

• White Illumination: Unlike the early R8 clusters that had a red-tinted driver display, the “T” revision features the modern white high-contrast DIS.

• LCI Graphics: The icons for the S-tronic transmission (replacing the older R-tronic) are specifically formatted for the facelifted drivetrain (Code PTX/PKL).

• Integrated Immobilizer: This unit houses the vehicle’s Immobilizer IV chip. It is the gatekeeper for the engine-start sequence; without this cluster being “authorized,” the engine will not run.

Professional Installation & Programming Notes

1. Component Protection & Immobilizer: This is not a plug-and-play part. The instrument cluster is part of the “Anti-Theft” chain. You must use Audi ODIS (with an online factory link) to perform the Immobilizer Adaptation.

2. Mileage Transfer: By law and system design, mileage can only be programmed into a “New” cluster (under $100\text{ km}$ on the odometer). If you are installing a used unit, the mileage will remain from the donor car unless you use specialized EEPROM tools (not supported by standard dealership tools).

3. Soft Coding: You must transfer the coding from your old cluster to ensure features like Magnetic Ride, Rear Wing Control, and Tire Pressure Monitoring (TPMS) are correctly displayed.

4. Fuel Tank Calibration: Because the Spyder and Coupe have slightly different fuel tank shapes and sensors, choosing the “T” revision ensures the fuel gauge remains accurate for the Spyder’s specific $80\text{L}$ tank geometry.

Inventory Note: The “T” revision is the European/Global metric version. If your vehicle is a US-spec model, you would typically look for the MPH equivalent, though this unit can be coded to display digital speed in MPH via the DIS menu.