MiMi Auto Parts
HOSE ENGINE TO RAD RETURN HOSE, Cooltec

HOSE ENGINE TO RAD RETURN HOSE

Brand: Cooltec

SKU: 400107

Category: COOLING, RADIATOR HOSE

R575,00 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 connects the engine to the radiator return system, playing a crucial role in the cooling process of your BMW. As part of the cooling radiator hose assembly, it ensures efficient coolant flow back from the engine to the radiator, helping to regulate engine temperature and prevent overheating during operation.

Designed specifically for BMW models, this hose is compatible with a range of vehicles using the M52 and M54 engines, including popular 3 Series, 5 Series, 7 Series, Z3, and Z4 models. Its moulded construction and integrated mounting features ensure a secure fit and reliable performance in your engine bay. Always verify your model, year, engine size, and engine code before ordering to ensure correct compatibility.

Common symptoms of a failing engine to radiator return hose include visible coolant leaks, swollen or cracked hose material, engine overheating, low coolant levels, or the presence of steam from the engine bay. You may also notice a sweet smell of coolant or warning lights on your dashboard.

It is advisable to replace this hose at the first sign of wear, damage, or leakage to prevent coolant loss and potential engine overheating. Regular inspection during routine maintenance can help catch issues early and avoid costly repairs down the line.

Order from MiMi Auto Parts for genuine Cooltec cooling components and enjoy nationwide delivery across South Africa. Our team is here to help you select the right part for your BMW and keep your vehicle running smoothly.

Common signs this part may need replacement

  • Coolant leaks under the vehicle
  • Engine overheating
  • Swollen or cracked hose
  • Low coolant warning light
  • Visible steam from engine bay
  • Sweet smell of coolant
  • Discoloured or deteriorated hose material
  • Coolant level drops frequently
  • Radiator hose feels unusually soft or brittle

Typical replacement guidance

Replace the engine to radiator return hose if you notice any signs of leaks, cracks, or swelling, or during major cooling system maintenance. Timely replacement helps maintain proper coolant flow and prevents engine overheating.

Why timely replacement matters

A damaged or leaking radiator hose can lead to rapid coolant loss and severe engine overheating. Prompt replacement protects your engine from costly damage and ensures reliable cooling performance.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 5 (E39) 1995 – 2003 523 i (M52 B25 (256S3)|M52 B25 (256S4)) – 125 kW / 170 HP
  • BMW 5 (E39) 1995 – 2003 525 i (M54 B25 (256S5)) – 141 kW / 192 HP
  • BMW 5 (E39) 1995 – 2003 528 i (M52 B28 (286S1)|M52 B28 (286S2)) – 142 kW / 193 HP
  • BMW 5 (E39) 1995 – 2003 530 i (M54 B30 (306S3)) – 170 kW / 231 HP
  • BMW 5 Touring (E39) 1996 – 2004 523 i (M52 B25 (256S3)|M52 B25 (256S4)) – 125 kW / 170 HP
  • BMW 5 Touring (E39) 1996 – 2004 525 i (M54 B25 (256S5)) – 141 kW / 192 HP
  • BMW 5 Touring (E39) 1996 – 2004 528 i (M52 B28 (286S1)|M52 B28 (286S2)) – 142 kW / 193 HP
  • BMW 5 Touring (E39) 1996 – 2004 530 i (M54 B30 (306S3)) – 170 kW / 231 HP
  • BMW 7 (E38) 1994 – 2001 728 i, iL (M52 B28 (286S1)|M52 B28 (286S2)) – 142 kW / 193 HP
  • BMW Z3 Roadster (E36) 1995 – 2003 2.8 i (M52 B28 (286S1)|M52 B28 (286S2)) – 142 kW / 193 HP
  • BMW Z3 Roadster (E36) 1995 – 2003 3.0 i (M54 B30 (306S3)) – 170 kW / 231 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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