Audi A6 2018 Wiring Diagrams PDF | 2.0L TFSI & 3.0L TFSI Quattro

This Audi A6 2018 Wiring Diagrams Manual provides professional-grade OEM schematics for all vehicle systems, including full coverage of 2.0L TFSI and 3.0L TFSI Quattro variants. Built on the C7.5 (Typ 4G) platform, the guide includes every subsystem, connector view, and circuit flow necessary for diagnostics, retrofits, or ECU wiring validation.

Systems Covered

• Air Conditioning (A/C Comfort & Basic Circuits) – complete HVAC and blower motor diagrams

• Anti-Lock Brakes (ABS/ESP) – hydraulic control unit, wheel sensors, and data bus integration

• Anti-Theft & Central Locking Systems – keyless access, immobilizer, door control modules, and alarm triggers

• Body Control & Comfort Modules – lighting, steering column electronics, seat heating, and BCM integration

• Computer Data Lines – CAN, LIN, and FlexRay communication architecture linking all ECUs

• Hybrid Cooling & Cup Holder Circuits – includes auxiliary heater pump and heated/cooled console elements

Table of Contents 

• Air Conditioning System
   • Automatic A/C Basic Circuit (1–3)
   • Comfort System Diagrams (1–4)
   • Temperature Sensors, Blower Motor, Control Module

• Cup Holder & Rear A/C Circuits
   • Heated & Cooled Cup Holder Circuit
   • Rear Air Conditioning and Seat Ventilation

• Anti-Lock Brakes
   • ABS Hydraulic Control Unit
   • Wheel Speed Sensors
   • Brake Booster Pressure Sensor

• Anti-Theft System
   • Immobilizer and Alarm System
   • Door Locking Units and Comfort Access
   • Trunk and Tailgate Actuators

• Body Control Modules
   • Steering Column Electronics
   • Comfort Control Unit
   • Vehicle Electrical System Controller

• Data Communication
   • CAN / LIN / FlexRay Layouts
   • ECU Data Bus and Gateway Overview
   • Diagnostic Connector and Ground Distribution

Technical Highlights

• Complete connector terminal numbering and wire color codes

• Full ECU cross-reference with communication topology

• Color-coded current flow schematics for each system

• Pin-level details for BCM2, J519, and gateway modules

• Compatible with ODIS, VCDS, OBDeleven, and workshop diagnostics

File Information

• Format: PDF (Digital Download)

• Language: English

• Pages: 173

⚠️ Notice

Digital delivery only — no physical media is shipped. Ensure Adobe Reader or any modern PDF viewer is installed.