MiMi Auto Parts
HOSE BREATHER OIL SEPERATOR, Arrowhead

HOSE BREATHER OIL SEPERATOR

Brand: Arrowhead

SKU: 400103

Category: BREATHER, ENGINE

R485,30 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

The Arrowhead Hose Breather Oil Separator is an essential component in your BMW's engine ventilation system. This part is responsible for directing crankcase gases away from the engine and into the oil separator, helping to reduce oil vapour and maintain clean engine operation. Its robust construction and precise fitment ensure reliable performance in demanding engine environments.

This breather hose is designed specifically for BMW models, including various E87, E46, E90, X3 E83, and Z4 E85 vehicles equipped with N42 and N46 engines. It connects the engine's crankcase to the oil separator, playing a critical role in the breather system. Always confirm your vehicle's model, year, engine size, and engine code before ordering to ensure compatibility.

Common symptoms of a failing breather hose include rough idling, increased oil consumption, oil leaks, engine warning lights, poor fuel economy, and excessive smoke from the exhaust. You may also notice a whistling noise from the engine bay or a strong smell of oil vapour.

If you experience any of these issues, inspect the breather hose for cracks, splits, or blockages. Replacing a damaged or worn breather hose restores proper airflow and prevents oil contamination in your BMW's engine. It is recommended to replace this part at the first sign of wear to avoid further engine complications.

Shop with confidence at MiMi Auto Parts, your trusted source for BMW engine breather components. We offer nationwide delivery across South Africa, ensuring you receive the right part quickly and reliably. Always double-check fitment details before purchasing.

Common signs this part may need replacement

  • Rough idling
  • Increased oil consumption
  • Oil leaks around the engine
  • Engine warning light illuminated
  • Poor fuel economy
  • Excessive smoke from exhaust
  • Whistling noise from engine bay
  • Strong smell of oil vapour
  • Reduced engine performance

Typical replacement guidance

Replace the breather hose if you notice cracks, splits, blockages, or oil leaks around the hose area. Timely replacement prevents unfiltered crankcase gases from entering the intake and helps maintain engine efficiency.

Why timely replacement matters

A faulty breather hose can lead to oil leaks, increased emissions, and potential engine damage. Timely replacement ensures your BMW engine runs smoothly and efficiently.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (E81) 2006 – 2011 120 i (N46 B20 B|N46 B20 C) – 115 kW / 156 HP
  • BMW 1 (E87) 2004 – 2011 120 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC) – 110 kW / 150 HP
  • BMW 3 (E46) 1997 – 2005 318 i (N42 B20 A|N46 B20 A|N46 B20 C) – 105 kW / 143 HP
  • BMW 3 (E90) 2004 – 2011 320 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CB) – 110 kW / 150 HP
  • BMW 3 Compact (E46) 2001 – 2004 318 ti (N42 B20 A|N46 B20 A) – 105 kW / 143 HP
  • BMW 3 Convertible (E46) 2000 – 2007 318 Ci (N42 B20 A|N46 B20 A) – 105 kW / 143 HP
  • BMW 3 Coupe (E46) 1998 – 2006 318 Ci (N42 B20 A) – 105 kW / 143 HP
  • BMW 3 Touring (E46) 1999 – 2005 318 i (N42 B20 A|N46 B20 A|N46 B20 C) – 105 kW / 143 HP
  • BMW 3 Touring (E91) 2004 – 2012 320 i (N46 B20 B|N46 B20 C) – 110 kW / 150 HP
  • BMW Z4 Roadster (E85) 2002 – 2009 2.0 i (N46 B20 B) – 110 kW / 150 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

Some auto parts require correct tools, mechanical knowledge, and safety procedures. MiMi Auto Parts recommends professional inspection and installation where required.

Frequently Asked Questions

What should I check before ordering this part?

Check the part name, brand, part number, and vehicle compatibility information on this page. Confirm your vehicle make, model, year, engine size, and engine code before ordering. If you are unsure, contact MiMi Auto Parts before checkout.

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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