1.8T Coil Pack Wiring Harness – Upgraded Replacement

Is your 1.8T coil pack harness cracking from heat? Experiencing misfires, random check engine lights, or intermittent ignition issues? If you've already replaced coils and spark plugs, there’s a good chance the wiring harness itself has failed.

This upgraded coil pack wiring harness from Carrot Top Tuning is a direct replacement for aging and brittle factory wiring commonly found on VW/Audi 1.8T engines. Built in-house using high-temperature automotive wire and genuine VW/Audi connectors, this harness restores reliability and eliminates common ignition faults caused by heat damage.

Why Replace Your Coil Harness?

• Heat-damaged insulation causes intermittent misfires
• Cracked wiring leads to coil failure & CELs
• OEM harnesses are no longer available from VW/Audi
• Prevents chasing electrical issues after coil replacement

Carrot Top Tuning Upgrade

• Built in-house for quality control
• High-temperature automotive-grade wiring
• OEM-style VW/Audi connectors
• Plug-and-play design (no splicing required)
• Improved durability over factory harness

These harnesses were originally installed from the factory, ensuring proper fitment and routing. Our upgraded version improves reliability while maintaining OEM compatibility.

Note: Volkswagen/Audi has discontinued this harness. This Carrot Top Tuning version is the only direct replacement currently available.

---

What’s Included

• 1× Plug & Play Coil Pack Wiring Harness
• VSS Connector Pre-Installed

---

Pinout Information

Driver Side Body Harness Connector:

• Black – Pin 7
• Orange – Pin 2
• Grey – Pin 3

ECU Side Connector:

• Purple – Pin 102
• Brown – Pin 103
• Blue – Pin 94
• Yellow – Pin 95
• White – Pin 121

---

Vehicle Compatibility

✔ Compatible with ALL Volkswagen / Audi 1.8T engines

⚠ Important Notes:
• Not a direct bolt-on for Audi A4 models
• Can be used with minor wiring modification
• Modification details can be found by searching the OEM part number on forums

---

Fix It Right the First Time

If you’re chasing misfires, rough idle, or random ignition issues, this harness is often the missing link. Upgrade once and eliminate a known 1.8T failure point for good.