MiMi Auto Parts
HOSE EXPANSION TANK TO THERMO HOSE, Cooltec

HOSE EXPANSION TANK TO THERMO HOSE

Brand: Cooltec

SKU: 400122

Category: COOLING, RADIATOR HOSE

R747,50 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 hose connects the expansion tank to the thermostat housing in your BMW's cooling system. It is a preformed rubber radiator hose equipped with plastic quick-connect fittings and metal retaining clips at both ends, ensuring a secure and leak-resistant connection.

Designed specifically for selected BMW models, this hose plays a vital role in maintaining proper coolant flow between the expansion tank and the engine's thermostat. Proper fitment is essential for effective cooling system operation and to prevent leaks or overheating issues. Always confirm your BMW's model, year, engine size, and engine code before purchasing to ensure compatibility.

Typical signs of a failing expansion tank to thermo hose include visible coolant leaks, low coolant levels, engine overheating, or warning lights on your dashboard. You may also notice the hose becoming brittle, swollen, or cracked, or detect a strong coolant smell from the engine bay.

If you observe any of these symptoms, replace the hose promptly to prevent further damage to your cooling system. Ignoring a faulty hose can lead to engine overheating, potential head gasket failure, and costly repairs. Always use the correct replacement part to maintain your BMW's reliability.

MiMi Auto Parts supplies genuine Cooltec hoses and offers nationwide delivery across South Africa. Trust MiMi for reliable BMW cooling system parts and expert advice to keep your vehicle running smoothly.

Common signs this part may need replacement

  • Coolant leaks near the expansion tank or thermostat housing
  • Low coolant warning light on dashboard
  • Engine overheating or running hotter than normal
  • Visible cracks, swelling, or brittleness in the hose
  • Strong coolant smell from engine bay
  • Steam or coolant spray under bonnet
  • Frequent need to top up coolant
  • Loose or damaged quick-connect fittings

Typical replacement guidance

Replace this hose if you notice any leaks, cracks, or signs of deterioration, or during major cooling system maintenance. Timely replacement helps prevent overheating and protects your engine from costly damage.

Why timely replacement matters

A compromised hose can cause coolant loss and engine overheating, risking major engine damage. Timely replacement ensures safe, reliable cooling system performance.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (F20) 2011 – 2019 125 i (N20 B20 A) – 160 kW / 218 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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