MiMi Auto Parts
HOSE EXPANSION TANK TO HEATER HOSE, Cooltec

HOSE EXPANSION TANK TO HEATER HOSE

Brand: Cooltec

SKU: 400128

Category: COOLING, RADIATOR HOSE

R276,00 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 serves as the crucial link between the expansion tank and heater hose in the cooling system of select BMW models. Its pre-formed bends and robust rubber construction help ensure proper coolant flow and system pressure. Correct routing of coolant through this hose is essential for efficient engine temperature management and effective cabin heating.

This hose is specifically designed for BMW vehicles, including certain E36 models such as the 320 and 325 with the M50 engine. Always confirm your BMW’s model, year, engine size, and engine code before ordering to ensure correct fitment.

Common symptoms of a failing expansion tank to heater hose include visible coolant leaks, engine overheating, a drop in coolant level, soft or swollen hose walls, loss of cabin heating, or a persistent coolant smell under the bonnet. Any of these issues can point to a compromised hose that requires attention.

Replacement of this hose is recommended if you notice cracks, bulges, leaks, or if the hose feels brittle to the touch. Timely replacement helps prevent unexpected breakdowns and maintains proper cooling system performance.

Order your BMW cooling radiator hose from MiMi Auto Parts for reliable nationwide delivery across South Africa. Our team is ready to assist you in finding the right part for your vehicle.

Common signs this part may need replacement

  • Coolant leaking near the expansion tank or heater hose connection
  • Engine overheating
  • Loss of cabin heating performance
  • Low coolant level warning
  • Hose feels soft, spongy, or swollen
  • Cracks or visible wear on the hose surface
  • Persistent coolant smell in the engine bay
  • Air bubbles in the cooling system
  • Frequent need to top up coolant

Typical replacement guidance

Replace this hose at the first sign of leaks, cracks, swelling, or loss of structural integrity. It is also advisable to inspect and possibly replace the hose during routine cooling system maintenance or when replacing the expansion tank or heater core.

Why timely replacement matters

Timely replacement of this hose helps prevent coolant loss and engine overheating, which can cause severe engine damage. Maintaining the integrity of your cooling system also ensures safe and comfortable driving conditions.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 3 (E36) 1990 – 1998 320 i (M50 B20 (206S1)|M50 B20 (206S2)|M52 B20 (206S3)) – 110 kW / 150 HP
  • BMW 3 Convertible (E36) 1993 – 1999 320 i (M50 B20 (206S2)|M52 B20 (206S3)) – 110 kW / 150 HP
  • BMW 3 Coupe (E36) 1991 – 1999 320 i (M50 B20 (206S1)|M50 B20 (206S2)|M52 B20 (206S3)) – 110 kW / 150 HP
  • BMW 3 Coupe (E36) 1991 – 1999 325 i (M50 B25 (256S1)|M50 B25 (256S2)) – 141 kW / 192 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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