Bosch Me711 Pinout

Before using this pinout, confirm your ECU:

Do not confuse with:

| Pin | Sensor | Signal Type | |------|-----------------------|-------------------| | 8 | MAP Sensor Signal | Analog (0-5V) | | 21 | Intake Air Temp (IAT) | Analog | | 24 | Engine Coolant Temp (ECT) | Analog | | 30 | Camshaft Position (G40) | Hall Sensor | | 39 | Knock Sensor 1 | AC Signal | | 45 | Throttle Position (TPS) | Analog (0-5V) | | 46 | Throttle Position (TPS) | Analog (0-5V) | | 52 | Lambda Sensor (O2) | 0-1V (Narrowband) | | 59 | Crankshaft Position (G28) | VR Sensor | | 60 | Crankshaft Position (G28) | VR Sensor (Shield) | | 66 | MAP Sensor Ground | Sensor Ground |

The ME711 often uses a narrowband pre-cat O2 on pin 4. If retrofitting a standalone wideband (like an AEM or Innovate): bosch me711 pinout

The Bosch ME7.1.1 pinout is a roadmap to the brain of one of the most tunable turbo engines ever made—the VW/Audi 1.8T. Whether you are chasing a no-start, building a swap harness, or bench-flashing a custom tune, the 88 pins of this ECU can be mastered with the table and notes above.

Always overlay your car’s specific wiring diagram (from Bentley or ELSA), because while the pin function is standard, wire colors sometimes change between an Audi TT (8N) and a VW Golf MK4. When in doubt, probe it out.

Disclaimer: This information is for educational purposes. Modifying or repinning an ECU can cause engine damage if done incorrectly. Always verify with factory documentation for your specific vehicle. Before using this pinout, confirm your ECU:

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After a battery disconnect, the ME711 enters a "limp" mode. You must perform a throttle body alignment (TBA) using VCDS (VAG-COM). Verify the 5V reference on pin 68 and the ground on pin 41. If these are faulty, the EPC light will illuminate immediately.

Many people confuse the ME7.1 (found on early Audi A4 1.8T Quattro with motronic) and the ME7.1.1. The main pinout differences: Do not confuse with:

| Feature | ME7.1 (rare) | ME7.1.1 (common) | |-------------------------|-------------------|----------------------| | Injector pins | 85-88 only | 82-85 | | Extra 5V sensor supply | No | Yes (pin 60) | | Secondary O2 sensor | Not pinned | Pin 100 | | Electronic throttle | Sometimes cable | Always drive-by-wire |

If you are swapping an engine and using a wiring diagram labeled "2001 Audi A4 1.8T" – that is ME7.1.1. Use the pinout above.

The ME711 is a hybrid of two diagnostic eras. It features a K-Line (ISO 9141-2) on Pin 43 (Connector C), which is the classic slow communication used by VAG-COM (VCDS) to read fault codes and measuring blocks. Simultaneously, it supports early CAN-Bus (High on Pin 51, Low on Pin 52) for communication with the ABS module and instrument cluster.

Through two decades of field data, specific pinout vulnerabilities have emerged: