8K0959501G Cooling Fan Control Module For Audi A4 A5 A6 Q3 Q5 2009-16 8K0959501A 8K0959501C High quality

Description

8K0959501G Cooling Fan Control Module is an upgraded OEM component designed for Audi’s 2009-2016 2.0T/2.0TDI/TFSI models with single-fan configurations. Here’s the technical breakdown:

🔧 Core Specifications

✔ OEM Evolution:

• Replaces 8K0959501A/C/D/F

• Superceded by 8K0959501H (2017+)
  ✔ Circuit Protection:

• 40A self-resetting polymer fuse

• Integrated thermal shutdown (activates at 135°C)
  ✔ Communication Protocol:

• LIN-Bus 2.1 (38400 baud rate)

🚗 Precision Fitment Guide

• A4 (B8/8K) 2.0TFSI (2009-2016) – Sedan/Avant/Allroad
• A5 (8T) 2.0TDI (2011-2016) – *Requires SW 0030+*
• Q5 (8R) 2.0T (2010-2015) – Non-S-Line models only
• A6 (C7) 2.0TDI (2012-2015) – *With PR-Code 7AC*

⚠ Diagnostic Insights

▸ Failure Modes:

• 62% MOSFET failures (typically Q3/Q5 components)

• 28% LIN communication faults

• 10% water ingress (sealant degradation)
  ▸ Diagnostic Trouble Codes:

• P049300 (Fan Speed Deviation)

• U101400 (Supply Voltage Low)

🔌 Installation Protocol

1. Pre-Installation:

   • Measure fan motor current draw (≤18A at startup)

   • Verify LIN voltage (2.5-3.5V pulsating DC)
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