Thermostat – 06L 121 111M (Genuine)

Description

Product Description

The Genuine VW/Audi Thermostat 06L121111M is an OE replacement for many EA888‑series 1.8T and 2.0T TSI/TFSI engines. Mounted in the thermostat housing, this precision‑calibrated unit controls coolant flow between the engine and radiator to maintain the correct operating temperature.

A sticking or failed thermostat can cause slow warm‑up, poor heater performance, overheating, fluctuating temperature gauge, or fault codes. Replacing it with this factory original thermostat restores proper temperature regulation and protects your engine from heat‑related damage.

• OEM Part Number: 06L 121 111M
• Brand: Genuine VW/Audi
• Opens and closes at the correct, factory‑specified temperature
• Ensures fast warm‑up and stable operating temperature
• Helps prevent overheating and improves fuel efficiency
• Direct fit in the original thermostat housing—no modifications required
• Ideal to install when servicing the water pump or thermostat housing

Applications

Designed for many Volkswagen and Audi EA888 1.8T / 2.0T engines, including models such as:

• Volkswagen: Golf / GTI, Jetta, Passat, Tiguan, Beetle, CC, and others
• Audi: A3, A4, A5, Q3, Q5, TT and similar 1.8T / 2.0T applications

Always verify compatibility by VIN or by matching the existing thermostat part number before ordering.

Service Notes

• Replace the thermostat seal/O‑ring at the same time.
• Refill with approved G12++/G13 VW/Audi coolant and bleed the system.
• Commonly replaced together with the water pump/thermostat housing assembly on EA888 engines.

Cross Reference

• 06L 121 111P
• 06L 121 111N

Additional information

No fitment data available.