MiMi Auto Parts
HOSE EXP TANK TO UPPER RADIATOR HOSE, Cooltec

HOSE EXP TANK TO UPPER RADIATOR HOSE

Brand: Cooltec

SKU: 410068

Category: COOLING, RADIATOR HOSE

R239,20 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 upper radiator hose, forming a crucial part of your BMW's cooling system. Designed with a pre-formed bend and quick-connect fitting, it ensures proper coolant flow between the expansion tank and radiator, helping to regulate engine temperature during operation.

This hose is compatible with a range of BMW models, including selected F20, F21, F22, F23, F30, F31, F32, F33, F34, F35, and F36 vehicles fitted with N13, N20, or N26 engines. Always check your specific BMW model, year, engine size, and engine code before ordering to guarantee correct fitment.

Common symptoms of a failing expansion tank to upper radiator hose include visible coolant leaks, soft or swollen hose sections, overheating, low coolant warnings, or a sudden drop in coolant levels. You may also notice steam from the engine bay or a persistent coolant smell.

Replace this hose if you observe any signs of wear, cracking, or leaking, or if you are experiencing cooling issues. Timely replacement is important to prevent engine overheating and potential damage to other cooling system components.

Shop with confidence at MiMi Auto Parts. We offer nationwide delivery across South Africa and are ready to assist with any compatibility questions, ensuring you get the right part for your BMW.

Common signs this part may need replacement

  • Coolant leaks around the hose connection points
  • Visible cracks or swelling on the hose
  • Engine overheating
  • Low coolant level warnings
  • Steam coming from the engine bay
  • Coolant odour under the bonnet
  • Soft or spongy hose texture
  • Sudden drop in coolant levels
  • Discoloured or deteriorated hose material

Typical replacement guidance

Replace the expansion tank to upper radiator hose at the first sign of leaks, cracks, or loss of flexibility. Regular inspection is recommended, especially if your BMW is experiencing cooling system issues or is due for a coolant service.

Why timely replacement matters

Timely replacement of this hose prevents coolant loss and engine overheating, protecting your engine from costly damage. Ignoring a faulty hose can lead to breakdowns and more extensive repairs.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (F20) 2011 – 2019 116 i (N13 B16 A) – 100 kW / 136 HP
  • BMW 1 (F20) 2011 – 2019 118 i (B38 B15 A) – 100 kW / 136 HP
  • BMW 1 (F20) 2011 – 2019 118 i (N13 B16 A) – 100 kW / 136 HP
  • BMW 1 (F20) 2011 – 2019 118 i (N13 B16 A) – 125 kW / 170 HP
  • BMW 1 (F20) 2011 – 2019 125 i (B48 B20 B) – 165 kW / 224 HP
  • BMW 1 (F20) 2011 – 2019 125 i (N20 B20 A) – 160 kW / 218 HP
  • BMW 1 (F21) 2011 – 2026 116 i (N13 B16 A) – 100 kW / 136 HP
  • BMW 1 (F21) 2011 – 2026 118 i (B38 B15 A) – 100 kW / 136 HP
  • BMW 1 (F21) 2011 – 2026 118 i (N13 B16 A) – 100 kW / 136 HP
  • BMW 1 (F21) 2011 – 2026 118 i (N13 B16 A) – 125 kW / 170 HP
  • BMW 1 (F21) 2011 – 2026 125 i (N20 B20 A) – 160 kW / 218 HP
  • BMW 2 Convertible (F23) 2014 – 2026 220 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 2 Convertible (F23) 2014 – 2026 220 i (N20 B20 A|N20 B20 B) – 135 kW / 184 HP
  • BMW 2 Convertible (F23) 2014 – 2026 228 i (N20 B20 A) – 180 kW / 245 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 220 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 220 i (N20 B20 A|N20 B20 B) – 135 kW / 184 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 228 i (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 3 (F30, F80) 2011 – 2018 316 i (N13 B16 A) – 100 kW / 136 HP
  • BMW 3 (F30, F80) 2011 – 2018 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 3 (F30, F80) 2011 – 2018 320 i (N20 B20 A|N20 B20 B|N20 B20 D) – 135 kW / 184 HP
  • BMW 3 (F30, F80) 2011 – 2018 320 i xDrive (N20 B20 A|N20 B20 B) – 135 kW / 184 HP
  • BMW 3 (F30, F80) 2011 – 2018 328 i (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 3 (F30, F80) 2011 – 2018 328 i xDrive (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 320 i (N20 B20 A|N20 B20 B) – 135 kW / 184 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 320 i xDrive (N20 B20 B) – 135 kW / 184 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 328 i (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 3 Touring (F31) 2012 – 2019 316 i (N13 B16 A) – 100 kW / 136 HP
  • BMW 3 Touring (F31) 2012 – 2019 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 3 Touring (F31) 2012 – 2019 320 i (N20 B20 B) – 135 kW / 184 HP
  • BMW 3 Touring (F31) 2012 – 2019 328 i (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 3 Touring (F31) 2012 – 2019 328 i xDrive (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 4 Convertible (F33, F83) 2013 – 2026 420 i (N20 B20 B) – 135 kW / 184 HP
  • BMW 4 Convertible (F33, F83) 2013 – 2026 428 i (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 4 Coupe (F32, F82) 2013 – 2026 420 i (N20 B20 A|N20 B20 B) – 135 kW / 184 HP
  • BMW 4 Coupe (F32, F82) 2013 – 2026 428 i (N20 B20 A|N26 B20 A) – 180 kW / 245 HP
  • BMW 4 Gran Coupe (F36) 2014 – 2026 420 i (N20 B20 B) – 135 kW / 184 HP
  • BMW 4 Gran Coupe (F36) 2014 – 2026 428 i (N20 B20 A|N26 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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