MiMi Auto Parts
THERMOSTAT 105°C, Cooltec

THERMOSTAT 105°C

Brand: Cooltec

SKU: 400057

Category: COOLING, THERMOSTAT

R901,60 incl. 15% VAT

✓ In stock, ships nationwide via The Courier Guy

Add to Cart

Fitment: Fits selected BMW models. Confirm exact fitment before ordering.

Product Description

Keep your BMW's engine running at optimal temperature with the Cooltec Thermostat 105°C. This thermostat assembly regulates coolant flow to maintain precise engine operating temperatures, helping prevent overheating and ensuring efficient performance. The integrated plastic housing features a robust spring-loaded mechanism and an electrical connector port, designed for reliable operation in BMW cooling systems.

This thermostat is specifically engineered for selected BMW models, such as the E46 318i with the M43 engine, produced between 1999 and 2005. It is important to verify your vehicle's model, year, engine size, and engine code before purchasing to ensure compatibility.

Common symptoms of a failing thermostat include engine overheating, fluctuating temperature gauge readings, poor heater performance, coolant leaks around the housing, and the engine taking too long to reach operating temperature. You may also notice reduced fuel efficiency or a check engine warning related to coolant temperature.

Replace your thermostat if you experience any of these symptoms, or during major cooling system maintenance. Timely replacement helps prevent costly engine damage and maintains your BMW's performance and reliability.

Order your Cooltec Thermostat 105°C from MiMi Auto Parts for trusted parts and nationwide delivery anywhere in South Africa. Our team recommends confirming all vehicle details before ordering to ensure the perfect fit for your BMW.

Common signs this part may need replacement

  • Engine overheating
  • Erratic or fluctuating temperature gauge
  • Coolant leaks at the thermostat housing
  • Poor cabin heater performance
  • Engine takes too long to reach operating temperature
  • Reduced fuel efficiency
  • Check engine light related to coolant temperature
  • Unusual coolant flow or circulation issues
  • Cooling fan running continuously

Typical replacement guidance

Replace the thermostat if you notice overheating, temperature fluctuations, or leaks around the housing. It is also recommended during major cooling system service or when the engine does not reach or maintain proper operating temperature.

Why timely replacement matters

A faulty thermostat can lead to engine overheating or inefficient operation, risking severe engine damage. Timely replacement ensures your BMW's engine stays protected and performs as designed.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 3 (E46) 1997 – 2005 318 i (M43 B19 (194E1)) – 87 kW / 118 HP
  • BMW 3 Touring (E46) 1999 – 2005 318 i (M43 B19 (194E1)) – 87 kW / 118 HP

Fitment support

Not sure if this part fits your vehicle? Contact MiMi Auto Parts with your vehicle make, model, year, and engine code before ordering and we will help confirm fitment.

Installation note

Cooling system work involves draining and refilling coolant and may require specialised tools. Professional installation is recommended to ensure correct coolant mixture, bleeding of air from the system, and leak-free connections.

Frequently Asked Questions

What are the signs of a failing water pump?

Common signs may include coolant leaks near the front of the engine, engine overheating, a whining or grinding noise from the water pump area, or coolant loss without visible external leaks. Diagnosis should be confirmed before replacement.

Can I drive with a coolant leak?

Driving with a coolant leak is not recommended. Loss of coolant can lead to engine overheating and potentially serious engine damage. The vehicle should be inspected and the leak repaired before further driving.

Does this part fit my vehicle?

Please check the vehicle compatibility section on this page and confirm your vehicle make, model, year, engine size, and engine code before ordering. If you are unsure, contact MiMi Auto Parts before checkout.

Is the price VAT-inclusive?

Yes, product prices on MiMi Auto Parts are shown inclusive of VAT where applicable.

Do you deliver across South Africa?

Yes, MiMi Auto Parts delivers nationwide in South Africa. Delivery cost and estimated timing are calculated during checkout based on your location.

Is professional installation recommended?

Professional installation is recommended for safety-critical and technical parts such as airbag, clock spring, brakes, suspension, steering, clutch, cooling, engine, and electrical components. For guidance specific to this part, see the installation note on this page.

Related Parts