MiMi Auto Parts
THERMOSTAT 101°C, Arrowhead

THERMOSTAT 101°C

Brand: Arrowhead

SKU: 434586

Category: COOLING, THERMOSTAT

R4 137,70 incl. 15% VAT

✓ In stock, ships nationwide via The Courier Guy

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

Product Description

Keep your BMW’s engine running at the correct temperature with the Arrowhead THERMOSTAT 101°C. This cooling thermostat is designed to regulate coolant flow, ensuring optimal engine performance and efficiency. Featuring a robust black plastic housing with multiple hose connections and a 4-pin electrical connector, it integrates seamlessly into your vehicle’s cooling system.

This thermostat is suitable for select BMW models, including F20 and F30 series with engines such as 116, 118, 120, 125, 318, 320, and 330, covering B38, B46, and B48 engine codes. Always confirm your vehicle’s model, year, engine size, and engine code to ensure compatibility before ordering.

Common symptoms of a failing thermostat include fluctuating engine temperatures, overheating, poor heater performance, increased fuel consumption, and warning lights on the dashboard. You may also notice coolant leaks or erratic temperature gauge readings.

Thermostats should be replaced if you experience any of these issues, during major cooling system repairs, or as part of regular maintenance on high-mileage vehicles. Using the correct thermostat helps maintain engine efficiency and prevents costly damage.

Order your Arrowhead THERMOSTAT 101°C from MiMi Auto Parts for reliable performance and peace of mind. We offer nationwide delivery throughout South Africa, making it easy to get the parts you need.

Common signs this part may need replacement

  • Engine overheating
  • Fluctuating or unstable engine temperature gauge readings
  • Poor heater performance
  • Coolant leaks around thermostat housing
  • Check engine light or temperature warning light
  • Increased fuel consumption
  • Engine running too cool
  • Erratic engine performance
  • Slow engine warm-up
  • Unusual noises from the cooling system

Typical replacement guidance

Replace the thermostat if your BMW exhibits temperature control issues, overheating, or as part of scheduled cooling system maintenance. Always use a thermostat with the correct temperature rating to ensure proper operation.

Why timely replacement matters

A faulty thermostat can lead to engine overheating or inefficient operation, risking severe engine damage. Timely replacement ensures reliable temperature regulation and long-term engine health.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (F20) 2011 – 2019 118 i (B38 B15 A) – 100 kW / 136 HP
  • BMW 1 (F20) 2011 – 2019 120 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 1 (F20) 2011 – 2019 125 i (B48 B20 B) – 165 kW / 224 HP
  • BMW 1 (F21) 2011 – 2026 118 i (B38 B15 A) – 100 kW / 136 HP
  • BMW 1 (F21) 2011 – 2026 120 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 1 (F40) 2019 – 2026 118 i (B38 A15 A|B38A15F) – 103 kW / 140 HP
  • BMW 1 (F40) 2019 – 2026 M 135 i xDrive (B48 A20 E) – 225 kW / 306 HP
  • BMW 1 (F52) 2017 – 2019 118 i (B38 A15 C) – 100 kW / 136 HP
  • BMW 2 Active Tourer (F45) 2013 – 2026 218 i (B38 A15 A) – 100 kW / 136 HP
  • BMW 2 Active Tourer (F45) 2013 – 2026 220 i (B48 A20 A|B48 A20 F) – 141 kW / 192 HP
  • BMW 2 Active Tourer (F45) 2013 – 2026 225 i (B48 A20 B) – 170 kW / 231 HP
  • BMW 2 Convertible (F23) 2014 – 2026 220 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 2 Convertible (F23) 2014 – 2026 230 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 220 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 230 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 2 Gran Coupe (F44) 2019 – 2026 218 i (B38 A15 A|B38A15F) – 103 kW / 140 HP
  • BMW 2 Gran Coupe (F44) 2019 – 2026 M 235 i xDrive (B48 A20 E) – 225 kW / 306 HP
  • BMW 2 Gran Tourer (F46) 2014 – 2026 218 i (B38 A15 A) – 100 kW / 136 HP
  • BMW 2 Gran Tourer (F46) 2014 – 2026 220 i (B48 A20 A) – 141 kW / 192 HP
  • BMW 3 (F30, F80) 2011 – 2018 318 i (B38 B15 A) – 100 kW / 136 HP
  • BMW 3 (F30, F80) 2011 – 2018 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 3 (F30, F80) 2011 – 2018 330 e (B48 B20 A) – 185 kW / 252 HP
  • BMW 3 (F30, F80) 2011 – 2018 330 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 3 (G20, G80, G28) 2018 – 2026 320 i (B46 B20 B|B48 B20 A|B48 B20 B) – 135 kW / 184 HP
  • BMW 3 (G20, G80, G28) 2018 – 2026 330 i (B46 B20 B|B48 B20 B) – 190 kW / 258 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 330 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 3 Touring (F31) 2012 – 2019 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 4 Convertible (F33, F83) 2013 – 2026 420 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 4 Convertible (F33, F83) 2013 – 2026 430 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 4 Coupe (F32, F82) 2013 – 2026 420 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 4 Coupe (F32, F82) 2013 – 2026 430 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 4 Gran Coupe (F36) 2014 – 2026 420 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 4 Gran Coupe (F36) 2014 – 2026 430 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 5 (E60) 2001 – 2010 550 i (N62 B48 B) – 270 kW / 367 HP
  • BMW 5 (G30, F90) 2016 – 2026 520 i (B46 B20 B|B48 B20 A|B48 B20 B) – 135 kW / 184 HP
  • BMW 5 (G30, F90) 2016 – 2026 530 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 5 Touring (E61) 2004 – 2010 550 i (N62 B48 A|N62 B48 B) – 270 kW / 367 HP
  • BMW 5 Touring (G31) 2017 – 2026 530 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 6 (E63) 2003 – 2010 650 i (N62 B48 B) – 270 kW / 367 HP
  • BMW 6 Convertible (E64) 2004 – 2010 650 i (N62 B48 B) – 270 kW / 367 HP
  • BMW 7 (E65, E66, E67) 2001 – 2009 750 i, Li (N62 B48 B) – 270 kW / 367 HP
  • BMW 7 (G11, G12) 2015 – 2026 740 e, Le (B48 B20 B) – 190 kW / 258 HP
  • BMW 7 (G11, G12) 2015 – 2026 740 e, Le (B48 B20 B) – 240 kW / 326 HP
  • BMW i8 (I12) 2014 – 2020 hybrid (B38 K15 A) – 170 kW / 231 HP
  • BMW i8 (I12) 2014 – 2020 hybrid (B38 K15 A) – 266 kW / 362 HP
  • BMW i8 (I12) 2014 – 2020 hybrid (B38 K15 A) – 275 kW / 374 HP
  • BMW i8 Roadster (I15) 2018 – 2020 hybrid (B38 K15 A) – 170 kW / 231 HP
  • BMW i8 Roadster (I15) 2018 – 2020 hybrid (B38 K15 A) – 275 kW / 374 HP
  • BMW X1 (F48) 2014 – 2026 sDrive 18 i (B38 A15 A) – 103 kW / 140 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.

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