MiMi Auto Parts
HOSE EXPANSION TANK TO RADIATOR, Cooltec

HOSE EXPANSION TANK TO RADIATOR

Brand: Cooltec

SKU: 410009

Category: COOLING, RADIATOR HOSE

R250,70 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 connects the expansion tank to the radiator, playing a crucial role in your BMW's cooling system. It is designed to ensure efficient coolant flow between these components, helping to regulate engine temperature and prevent overheating. The hose features a robust curved design with a reinforced section and a plastic quick-connect fitting for secure installation.

This part is compatible with selected BMW models, specifically the 5 Series F07, F10, and F11 with 520i and 528i N20 engines. As cooling system designs and fittings can vary, always confirm your vehicle’s model, year, engine size, and engine code before ordering to guarantee correct fitment.

Common symptoms of a failing expansion tank to radiator hose include coolant leaks, visible cracks or swelling on the hose, engine overheating, low coolant warnings, or a sudden drop in coolant level. You may also notice steam from the engine bay or a persistent smell of coolant.

Replace this hose if you observe any signs of wear, leaks, or if it feels brittle or soft to the touch. Regular inspection and timely replacement help avoid more serious engine damage or breakdowns.

Order with confidence from MiMi Auto Parts. We offer nationwide delivery across South Africa and are ready to help you keep your BMW running reliably. Always verify compatibility before purchase.

Common signs this part may need replacement

  • Coolant leaks near the hose connections
  • Visible cracks or swelling on the hose
  • Engine overheating
  • Low coolant warning light
  • Sudden drop in coolant level
  • Steam or vapour from engine bay
  • Soft, brittle, or spongy hose texture
  • Persistent coolant smell

Typical replacement guidance

Replace the expansion tank to radiator hose at the first sign of leaks, cracks, or visible deterioration. Regularly check during routine maintenance, especially on older vehicles or after overheating incidents.

Why timely replacement matters

Timely replacement of this hose prevents coolant loss and helps maintain stable engine temperatures. Neglect can lead to overheating, engine damage, or costly repairs.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 5 (F10) 2009 – 2016 520 i (N20 B20 A|N20 B20 B) – 135 kW / 184 HP
  • BMW 5 (F10) 2009 – 2016 528 i (N20 B20 A) – 180 kW / 245 HP
  • BMW 5 Gran Turismo (F07) 2009 – 2017 528 i (N20 B20 A) – 180 kW / 245 HP
  • BMW 5 Touring (F11) 2009 – 2017 528 i (N20 B20 A) – 180 kW / 245 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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