MiMi Auto Parts
TENSIONER UNIT V BELT, Arrowhead

TENSIONER UNIT V BELT

Brand: Arrowhead

SKU: 400802

Category: ENGINE, VEE BELT TENSIONER

R1 060,30 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 Tensioner Unit V Belt is an essential component in the engine vee belt tensioner system for BMW vehicles. This part is designed to maintain the correct tension on the V-belt, ensuring optimal performance of engine accessories such as the alternator, power steering pump, and air conditioning compressor. Its robust construction and integrated pulley help to keep the belt aligned and running smoothly.

This tensioner unit is compatible with a wide range of BMW models, including 1 to 8 Series (116 to 840) and X1 to X6 (25i to 40i) with B38, B48, and B58 engines from 2011 onwards. Please confirm your BMW's model, year, engine size, and engine code before placing an order to ensure correct fitment.

Typical symptoms of a failing vee belt tensioner include unusual belt noise, visible belt misalignment, excessive belt wear, or a loose or slipping belt. You might also notice intermittent charging issues, loss of power steering assistance, or engine overheating if the tensioner is not functioning properly.

Replacing a worn or faulty tensioner unit is important to prevent further damage to your engine accessories and to avoid unexpected breakdowns. Always inspect the condition of the V-belt and pulleys when replacing the tensioner, and follow your vehicle manufacturer's recommended service intervals.

MiMi Auto Parts offers this Arrowhead tensioner unit with reliable nationwide delivery across South Africa. For peace of mind and the right fit, our team is ready to assist you in selecting the correct part for your BMW. Always double-check your vehicle details before ordering.

Common signs this part may need replacement

  • Squealing or chirping noises from the engine bay
  • Loose or slipping vee belt
  • Visible belt misalignment
  • Excessive or uneven belt wear
  • Intermittent power steering loss
  • Alternator charging issues
  • Air conditioning not functioning properly
  • Engine overheating due to accessory drive failure

Typical replacement guidance

Replace the tensioner unit if you notice belt noise, misalignment, or loss of accessory function. It is also recommended to replace the tensioner during scheduled V-belt changes or if there are visible signs of wear or damage.

Why timely replacement matters

Timely replacement of a faulty tensioner unit prevents belt slippage and ensures all engine-driven accessories operate correctly. Neglecting this part can lead to accessory failure and costly engine repairs.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (F20) 2011 – 2019 118 i (B38 B15 A) – 100 kW / 136 HP
  • BMW 1 (F20) 2011 – 2019 120 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 1 (F20) 2011 – 2019 125 i (B48 B20 B) – 165 kW / 224 HP
  • BMW 1 (F20) 2011 – 2019 M 140 i (B58 B30 A) – 250 kW / 340 HP
  • BMW 1 (F21) 2011 – 2026 118 i (B38 B15 A) – 100 kW / 136 HP
  • BMW 2 Convertible (F23) 2014 – 2026 220 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 2 Convertible (F23) 2014 – 2026 230 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 2 Convertible (F23) 2014 – 2026 M 240 i (B58 B30 A) – 250 kW / 340 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 220 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 230 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 2 Coupe (F22, F87) 2012 – 2026 M 240 i (B58 B30 A) – 250 kW / 340 HP
  • BMW 2 Coupe (G42, G87) 2021 – 2026 M2 (S58 B30 A) – 338 kW / 460 HP
  • BMW 3 (F30, F80) 2011 – 2018 318 i (B38 B15 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 330 e (B48 B20 A) – 185 kW / 252 HP
  • BMW 3 (F30, F80) 2011 – 2018 330 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 3 (F30, F80) 2011 – 2018 340 i (B58 B30 A) – 240 kW / 326 HP
  • BMW 3 (G20, G80, G28) 2018 – 2026 M3 (S58 B30 B) – 353 kW / 480 HP
  • BMW 3 (G20, G80, G28) 2018 – 2026 M3 Competition (S58 B30 A) – 375 kW / 510 HP
  • BMW 3 (G20, G80, G28) 2018 – 2026 M3 Competition xDrive (S58 B30 A) – 375 kW / 510 HP
  • BMW 3 (G20, G80, G28) 2018 – 2026 M3 CS xDrive (S58 B30 A) – 405 kW / 551 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 330 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 3 Gran Turismo (F34) 2012 – 2026 340 i (B58 B30 A) – 240 kW / 326 HP
  • BMW 3 Touring (F31) 2012 – 2019 320 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 3 Touring (F31) 2012 – 2019 340 i (B58 B30 A) – 240 kW / 326 HP
  • BMW 3 Touring (G21, G81) 2019 – 2026 M3 Competition xDrive (S58 B30 A) – 390 kW / 530 HP
  • BMW 4 Convertible (F33, F83) 2013 – 2026 420 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 4 Convertible (F33, F83) 2013 – 2026 430 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 4 Convertible (F33, F83) 2013 – 2026 440 i (B58 B30 A) – 240 kW / 326 HP
  • BMW 4 Convertible (G23, G83) 2020 – 2026 M4 Competition M xDrive (S58 B30 A) – 375 kW / 510 HP
  • BMW 4 Convertible (G23, G83) 2020 – 2026 M4 Competition M xDrive (S58 B30 A) – 390 kW / 530 HP
  • BMW 4 Coupe (F32, F82) 2013 – 2026 420 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 4 Coupe (F32, F82) 2013 – 2026 430 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 4 Coupe (F32, F82) 2013 – 2026 440 i (B58 B30 A) – 240 kW / 326 HP
  • BMW 4 Coupe (G22, G82) 2020 – 2026 M4 (S58 B30 B) – 353 kW / 480 HP
  • BMW 4 Coupe (G22, G82) 2020 – 2026 M4 Competition (S58 B30 A) – 375 kW / 510 HP
  • BMW 4 Coupe (G22, G82) 2020 – 2026 M4 Competition M xDrive (S58 B30 A) – 375 kW / 510 HP
  • BMW 4 Coupe (G22, G82) 2020 – 2026 M4 Competition M xDrive (S58 B30 A) – 390 kW / 530 HP
  • BMW 4 Coupe (G22, G82) 2020 – 2026 M4 CSL (S58 B30 A) – 405 kW / 551 HP
  • BMW 4 Gran Coupe (F36) 2014 – 2026 420 i (B48 B20 A) – 135 kW / 184 HP
  • BMW 4 Gran Coupe (F36) 2014 – 2026 430 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 4 Gran Coupe (F36) 2014 – 2026 440 i (B58 B30 A) – 240 kW / 326 HP
  • BMW 5 (G30, F90) 2016 – 2026 520 i (B46 B20 B|B48 B20 A|B48 B20 B) – 135 kW / 184 HP
  • BMW 5 (G30, F90) 2016 – 2026 530 i (B46 B20 B|B48 B20 B) – 185 kW / 252 HP
  • BMW 5 (G30, F90) 2016 – 2026 540 i (B58 B30 A|B58 B30 C) – 250 kW / 340 HP
  • BMW 5 Touring (G31) 2017 – 2026 530 i (B48 B20 B) – 185 kW / 252 HP
  • BMW 6 Gran Turismo (G32) 2017 – 2020 640 i xDrive (B58 B30 A|B58 B30 C) – 250 kW / 340 HP
  • BMW 7 (G11, G12) 2015 – 2026 740 e, Le (B48 B20 B) – 240 kW / 326 HP
  • BMW 7 (G11, G12) 2015 – 2026 740 i, Li (B58 B30 A) – 240 kW / 326 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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