Audi A5 2018 Wiring Diagrams PDF | 2.0L TFSI & 3.0L TFSI Quattro

The Audi A5 2018 Wiring Diagrams Manual provides in-depth OEM schematics for all major electrical systems across the B9 platform. Covering both 2.0L TFSI and 3.0L TFSI Quattro powertrains, it delivers precise circuit layouts for advanced troubleshooting, coding, and repair.

Systems Covered

• Air Conditioning System (Climatronic & Manual) – HVAC, blower motors, temperature sensors

• ABS / ESP System – wheel speed sensors, control modules, hydraulic actuators

• Central Locking / Anti-Theft Circuits – immobilizer, comfort access, alarm modules

• Body Control & Lighting Modules – BCM2, headlight leveling, and interior illumination

• CAN, LIN & FlexRay Communication Lines – all ECU data networks and gateway integration

• Hybrid & Cooling Circuits – radiator fan relays, thermal sensors, and 48V mild-hybrid readiness

Table of Contents

• Air Conditioning System
   • Climatronic Diagrams (1–4)
   • Non-Climatronic Circuits (1–5)
   • Blower Motor and Temperature Sensor Layout

• ABS / ESP System
   • Hydraulic Unit Circuits
   • Wheel Speed Sensor Wiring
   • Brake Control Module

• Anti-Theft & Access System
   • Immobilizer and Start Authorization
   • Comfort System Central Control Module
   • Forced Entry and Trunk Lock Circuits

• Body Control Modules
   • Lighting and Exterior Illumination
   • Steering Column and Interior Systems
   • Electrical System Control Module

• Communication Networks
   • CAN / LIN / FlexRay Data Layout
   • Gateway Control & ECU Mapping
   • Diagnostic Connector and Ground Points

Technical Highlights

• OEM color-coded diagrams with circuit references

• Connector pinouts and wire gauge identification

• Cross-linked module communication map

• Coverage for both coupe and sportback body styles

• Compatible with ODIS, VCDS, OBDeleven, and other diagnostic tools

File Information

• Format: PDF (Digital Download)

• Language: English

• Pages: 168

⚠️ Notice

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