MiMi Auto Parts
WATER PUMP AUXILIARY 3PIN, Cooltec

WATER PUMP AUXILIARY 3PIN

Brand: Cooltec

SKU: 405912

Category: COOLING, WATER PUMP AUXILIARY

R1 377,70 incl. 15% VAT

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

Product Description

This Cooltec Water Pump Auxiliary 3PIN is a vital component in the cooling system of select BMW models. Designed to circulate coolant through the engine and, in some cases, the heater circuit, this auxiliary pump ensures optimal temperature regulation, especially during periods of high demand or when the engine is idling. Its 3-pin electrical connector and multiple hose ports are tailored for precise integration with your vehicle's original cooling setup.

Fitment is specific to BMW models, including the F20, F21, and F30 series with engines such as the 116i, 118i, 120i, and 316i N13. Always confirm your BMW's model, year, engine size, and engine code before ordering to ensure proper compatibility.

Common symptoms of a failing auxiliary water pump include insufficient cabin heating, engine overheating at idle, coolant leaks near the pump, unusual noises from the cooling system, intermittent heater operation, or warning lights related to engine temperature. If you notice any of these issues, the auxiliary pump may need attention.

Replacing a faulty auxiliary water pump is crucial to maintain correct coolant flow, prevent overheating, and ensure your vehicle's heater works effectively during cold conditions. If your BMW exhibits any of the symptoms listed, consider inspecting or replacing the pump promptly.

Trust MiMi Auto Parts for your BMW's cooling needs. We offer nationwide delivery across South Africa and are ready to assist with expert advice. Always confirm your vehicle details before purchase to guarantee the correct fit.

Common signs this part may need replacement

  • Insufficient cabin heating
  • Engine overheating at idle or low speed
  • Coolant leaks near the auxiliary pump
  • Unusual noises from the pump area
  • Intermittent or weak heater performance
  • Warning lights related to engine temperature
  • Reduced coolant circulation
  • Erratic temperature gauge readings

Typical replacement guidance

Replace the auxiliary water pump if you notice poor heater performance, coolant leaks, or engine overheating at idle. Timely replacement helps prevent further cooling system damage and ensures consistent engine and cabin temperature control.

Why timely replacement matters

A faulty auxiliary water pump can lead to engine overheating and insufficient heater operation, especially during stop-start traffic or cold weather. Timely replacement protects your engine and keeps your BMW running smoothly.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (F20) 2011 – 2019 116 i (N13 B16 A) – 100 kW / 136 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 1 (F20) 2011 – 2019 118 i (N13 B16 A) – 100 kW / 136 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 1 (F20) 2011 – 2019 118 i (N13 B16 A) – 125 kW / 170 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 1 (F20) 2011 – 2019 120 i (N13 B16 A) – 130 kW / 177 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 1 (F21) 2011 – 2026 116 i (N13 B16 A) – 100 kW / 136 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 1 (F21) 2011 – 2026 118 i (N13 B16 A) – 100 kW / 136 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 1 (F21) 2011 – 2026 118 i (N13 B16 A) – 125 kW / 170 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 1 (F21) 2011 – 2026 120 i (N13 B16 A) – 130 kW / 177 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 3 (F30, F80) 2011 – 2018 316 i (N13 B16 A) – 100 kW / 136 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12
  • BMW 3 Touring (F31) 2012 – 2019 316 i (N13 B16 A) – 100 kW / 136 HP Engine Code N13 B16 A Operating Mode Electric Voltage [V] 12

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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