06B121111K Thermostat 100°C for Audi A4 B7 A6 C5 VW Passat B5.5 | OEM Cooling Part

Thermostat 100°C – 06B121111K

OEM thermostat for Audi A4 B7, A6 C5, VW Passat B5.5.
Opening temperature: 100°C
Part No: 06B 121 111 K

🌡️ Audi / VW High-Temperature Thermostat (100°C) – OEM 06B121111K

Maintain precise engine temperature control with the
COWIN OEM-Standard Thermostat. This unit (Ref: 06B 121 111 K)
opens at 100°C and is engineered for Audi A4, A6, and Volkswagen Passat
platforms equipped with 1.8T and 2.0 engines, ensuring optimal combustion efficiency.

✅ Key Features & Benefits

High Opening Temperature: 100°C for improved fuel economy and performance.
Turbo Engine Ready: Designed for 1.8T and 2.0 turbocharged engines.
OEM Replacement: Direct fit for part number 06B 121 111 K.
Durable Build: Withstands high thermal loads of forced induction engines.

🚗 Vehicle Compatibility

Brand	Model	Chassis / Body Code
Audi	A4 Saloon	8EC / B7
Audi	A4 Avant	8ED / B7
Audi	A6 Saloon	4B2 / C5
Audi	A6 Avant	4B5 / C5
Volkswagen	Passat	3B3 / B5.5
Volkswagen	Passat Variant	3B6 / B5.5

⚙️ Technical Specifications

Product: Thermostat
Opening Temperature: 100 °C
OEM Part Number: 06B 121 111 K / 06B121111K
Material: Reinforced Polymer / Metal Flange
Quality: 100% Tested & Calibrated

🛠️ Installation Note

Audi A4/A6 and VW Passat B5.5 engines require thorough cooling system bleeding after thermostat replacement.
Always replace the housing gasket and inspect plastic flanges for common cracking issues.

🏭 Why Choose COWIN Auto Parts?

COWIN (Gaoyun) specializes in European executive and family vehicle cooling systems.
Every thermostat is factory-tested for accurate opening temperature and long-term durability.