MINI Cooper Thermostat Housing Replacement in Chattanooga

The plastic thermostat housing on MINI engines is a known coolant-leak point that cracks with age and heat. At Inline Autohaus in Chattanooga, we replace leaking MINI thermostat housings before a small drip becomes an overheating problem.

• Coolant dripping near the front of the engine
• Low coolant or frequent topping up
• Overheating or temperature swings
• A check-engine light with coolant-temp codes

MINI's thermostat housing is plastic and becomes brittle, cracking and leaking coolant over time. Because the thermostat is integrated, it's usually replaced as a unit. Catching it early prevents overheating, which can damage the engine.

1. Pressure test to confirm the housing is leaking
2. Inspection of the cooling system
3. Replacement of the thermostat housing with a quality part
4. Bleed and test to confirm proper cooling

Why is my MINI leaking coolant from the front?

A cracked plastic thermostat housing is one of the most common causes.

Is the thermostat replaced with the housing?

Usually yes — it's integrated, so the unit is replaced together.