MiMi Auto Parts
HOSE HEAD TO THERMOSTAT, Cooltec

HOSE HEAD TO THERMOSTAT

Brand: Cooltec

SKU: 400093

Category: COOLING, RADIATOR HOSE

R457,70 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

This Cooltec hose head to thermostat is a crucial component in your BMW's cooling system, specifically designed to route coolant efficiently between the cylinder head and the thermostat. Its robust moulded rubber construction and secure quick-connect fittings help maintain proper coolant flow, ensuring optimal engine temperature regulation. The hose features a 90-degree bend with a plastic quick-connect fitting on one end and a flange with an O-ring groove on the other, designed for a precise, leak-resistant fit.

This part is suitable for a range of BMW models, including those with N42, N45, N45N, and N46 engines. Always confirm your vehicle's model, year, engine size, and engine code before ordering to ensure compatibility.

Common signs of a failing head-to-thermostat hose include visible coolant leaks, low coolant levels, engine overheating, or a soft and swollen hose. You may also notice a persistent coolant smell under the bonnet or erratic temperature gauge readings. Replacing this hose at the first sign of wear can prevent more severe engine damage.

Replacement is recommended if you observe cracks, leaks, or brittleness in the hose, or if you are already servicing the cooling system. Timely replacement helps maintain reliable cooling performance and prevents unexpected breakdowns.

Order your BMW cooling radiator hose from MiMi Auto Parts for peace of mind and reliable nationwide delivery across South Africa. Our team is ready to assist with any fitment queries to ensure you get the right part for your vehicle.

Common signs this part may need replacement

  • Coolant leaks near the hose or thermostat housing
  • Engine overheating
  • Low coolant warning light
  • Visible cracks or splits on the hose
  • Soft or swollen hose texture
  • Erratic temperature gauge readings
  • Persistent coolant smell under the bonnet
  • Steam from the engine bay
  • Frequent need to top up coolant

Typical replacement guidance

Replace the hose head to thermostat if you notice leaks, cracks, or soft spots, or during routine cooling system maintenance. Early replacement can prevent engine overheating and costly repairs.

Why timely replacement matters

A damaged or leaking hose can lead to rapid coolant loss and engine overheating, risking severe engine damage. Timely replacement ensures consistent cooling and engine reliability.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (E81) 2006 – 2011 120 i (N46 B20 B|N46 B20 C) – 115 kW / 156 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 (E90) 2004 – 2011 320 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CB) – 110 kW / 150 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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