MiMi Auto Parts
WATER PUMP, Cooltec

WATER PUMP

Brand: Cooltec

SKU: 426305

Category: COOLING, WATER PUMP

R1 276,50 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

This Cooltec water pump is designed specifically for BMW models equipped with the N46, N45, and N42 engines. As a key component within your vehicle's cooling system, the water pump circulates coolant between the engine and radiator, helping to maintain optimal operating temperatures and prevent overheating. Its robust cast aluminium construction and integrated bearing assembly provide reliable performance for daily driving conditions.

Compatible with select BMW models including the E81, E87, E46, and E90 series fitted with 116i, 118i, 120i, 318i, and 320i engines, this water pump is tailored for precise fitment and dependable operation. Always confirm your BMW's model, year, engine size, and engine code before ordering to ensure correct compatibility.

Common symptoms of a failing water pump include coolant leaks, engine overheating, unusual noises from the pump area, steam from the radiator, frequent low coolant warnings, and visible corrosion or residue around the pump housing. Addressing these signs early can help avoid more serious engine damage.

When replacing the water pump, it is recommended to inspect and, if necessary, replace related cooling system components such as the thermostat and drive belts. Professional installation is advised to ensure correct fitment and system integrity.

Order with confidence from MiMi Auto Parts. We offer nationwide delivery across South Africa and are committed to supplying the right parts to keep your BMW running smoothly. Always verify your vehicle details before purchasing to guarantee compatibility.

Common signs this part may need replacement

  • Coolant leaks near the water pump area
  • Engine overheating or running hotter than normal
  • Whining or grinding noise from the pump
  • Visible corrosion or residue on the pump housing
  • Steam coming from the radiator or engine bay
  • Frequent low coolant warnings
  • Heater not producing warm air
  • Loose or wobbly water pump pulley

Typical replacement guidance

Replace the water pump if you notice coolant leaks, overheating, or unusual noises coming from the pump area. Timely replacement helps prevent severe engine damage and costly repairs.

Why timely replacement matters

A failing water pump can quickly lead to engine overheating, which may cause head gasket failure or engine seizure. Timely replacement ensures your BMW's cooling system remains effective and reliable.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (E81) 2006 – 2011 116 i (N45 B16 A) – 85 kW / 115 HP
  • BMW 1 (E81) 2006 – 2011 118 i (N46 B20 B) – 100 kW / 136 HP
  • BMW 1 (E81) 2006 – 2011 118 i (N46 B20 B) – 95 kW / 129 HP
  • BMW 1 (E81) 2006 – 2011 120 i (N46 B20 B|N46 B20 C) – 115 kW / 156 HP
  • BMW 1 (E87) 2004 – 2011 116 i (N45 B16 A) – 85 kW / 115 HP
  • BMW 1 (E87) 2004 – 2011 118 i (N46 B20 B) – 100 kW / 136 HP
  • BMW 1 (E87) 2004 – 2011 118 i (N46 B20 B) – 95 kW / 129 HP
  • BMW 1 (E87) 2004 – 2011 120 i (N46 B20 A|N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC) – 115 kW / 156 HP
  • BMW 1 (E87) 2004 – 2011 120 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC) – 110 kW / 150 HP
  • BMW 1 Convertible (E88) 2007 – 2013 120 i (N46 B20 B|N46 B20 C|N46 B20 E) – 115 kW / 156 HP
  • BMW 3 (E46) 1997 – 2005 318 i (N42 B20 A|N46 B20 A|N46 B20 C) – 105 kW / 143 HP
  • BMW 3 (E90) 2004 – 2011 320 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CB) – 110 kW / 150 HP
  • BMW 3 (E90) 2004 – 2011 320 i (N46 B20 B|N46 B20 C|N46 B20 CC|N46 B20 CD|N46 B20 E) – 115 kW / 156 HP
  • BMW 3 Compact (E46) 2001 – 2004 318 ti (N42 B20 A|N46 B20 A) – 105 kW / 143 HP
  • BMW 3 Convertible (E46) 2000 – 2007 318 Ci (N42 B20 A|N46 B20 A) – 105 kW / 143 HP
  • BMW 3 Convertible (E93) 2006 – 2013 320 i (N46 B20 B|N46 B20 E) – 115 kW / 156 HP
  • BMW 3 Coupe (E46) 1998 – 2006 318 Ci (N42 B20 A) – 105 kW / 143 HP
  • BMW 3 Coupe (E92) 2006 – 2013 320 i (N46 B20 B) – 115 kW / 156 HP
  • BMW 3 Touring (E46) 1999 – 2005 318 i (N42 B20 A|N46 B20 A|N46 B20 C) – 105 kW / 143 HP
  • BMW 3 Touring (E91) 2004 – 2012 320 i (N46 B20 B|N46 B20 BD|N46 B20 C) – 115 kW / 156 HP
  • BMW 3 Touring (E91) 2004 – 2012 320 i (N46 B20 B|N46 B20 C) – 110 kW / 150 HP
  • BMW X1 (E84) 2009 – 2015 sDrive 18 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC|N46 B20 CD|N46 B20 E) – 110 kW / 150 HP
  • BMW Z4 Roadster (E85) 2002 – 2009 2.0 i (N46 B20 B) – 110 kW / 150 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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