MiMi Auto Parts
SENSOR WATER LEVEL 2PIN, Arrowhead

SENSOR WATER LEVEL 2PIN

Brand: Arrowhead

SKU: 412626

Category: SENSORS, WATER LEVEL

R126,50 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 Arrowhead SENSOR WATER LEVEL 2PIN is designed to monitor the coolant level in the expansion tank of select BMW models. It plays a crucial role in alerting the driver if the coolant drops below the recommended level, helping to prevent engine overheating and potential damage. The sensor features a blue plastic housing, a right-angle body, and a 2-pin electrical connector with a secure locking tab for reliable installation.

This water level sensor is compatible with various BMW models manufactured between 1997 and 2018. It is also suitable for certain MINI R60 and R61 vehicles produced from 2010 to 2016. Always confirm your specific model, year, engine size, and engine code before ordering to ensure correct fitment.

Common symptoms of a faulty water level sensor include dashboard warning lights for low coolant, inaccurate coolant level readings, intermittent alerts, or no warning when coolant is low. You may also notice engine overheating or coolant leaks if the issue is not addressed promptly.

If you experience any of these symptoms, it is advisable to inspect and replace the water level sensor to maintain your vehicle's cooling system performance. Replacing a faulty sensor helps prevent engine damage by ensuring you are alerted to low coolant situations in time.

MiMi Auto Parts supplies genuine Arrowhead sensors for BMW, with nationwide delivery across South Africa. Trust us for reliable parts and expert advice, and always verify your vehicle details before purchasing.

Common signs this part may need replacement

  • Coolant level warning light stays on
  • Coolant warning light does not activate when coolant is low
  • Erratic or false coolant level readings
  • Intermittent coolant level alerts
  • Engine overheating due to undetected low coolant
  • No warning for coolant loss
  • Electrical fault codes related to coolant sensor
  • Unexplained coolant leaks with no dashboard alert

Typical replacement guidance

Replace the water level sensor if you notice persistent or false coolant warnings, or if the sensor fails to trigger alerts when coolant is low. Early replacement helps prevent engine overheating and ensures your vehicle's cooling system operates as intended.

Why timely replacement matters

Timely replacement of the water level sensor ensures you are promptly warned if coolant levels drop, helping to avoid engine overheating. Ignoring a faulty sensor can lead to costly engine repairs and breakdowns.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (E81) 2006 – 2011 116 i (N45 B16 A) – 85 kW / 115 HP
  • BMW 1 (E81) 2006 – 2011 118 i (N46 B20 B) – 95 kW / 129 HP
  • BMW 1 (E81) 2006 – 2011 120 d (N47 D20 A|N47 D20 C) – 130 kW / 177 HP
  • BMW 1 (E81) 2006 – 2011 120 i (N46 B20 B|N46 B20 C) – 115 kW / 156 HP
  • BMW 1 (E81) 2006 – 2011 130 i (N52 B30 A|N52 B30 B|N52 B30 BF) – 195 kW / 265 HP
  • BMW 1 (E87) 2004 – 2011 116 i (N45 B16 A) – 85 kW / 115 HP
  • BMW 1 (E87) 2004 – 2011 118 i (N46 B20 B) – 100 kW / 136 HP
  • BMW 1 (E87) 2004 – 2011 118 i (N46 B20 B) – 95 kW / 129 HP
  • BMW 1 (E87) 2004 – 2011 120 d (N47 D20 A|N47 D20 C) – 130 kW / 177 HP
  • BMW 1 (E87) 2004 – 2011 120 i (N46 B20 A|N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC) – 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 1 (E87) 2004 – 2011 130 i (N52 B30 A|N52 B30 AF|N52 B30 BF) – 195 kW / 265 HP
  • BMW 1 Convertible (E88) 2007 – 2013 120 d (N47 D20 A|N47 D20 C) – 130 kW / 177 HP
  • BMW 1 Convertible (E88) 2007 – 2013 120 i (N46 B20 B|N46 B20 C|N46 B20 E) – 115 kW / 156 HP
  • BMW 1 Convertible (E88) 2007 – 2013 125 i (N52 B30 A|N52 B30 B|N52 B30 BF) – 160 kW / 218 HP
  • BMW 1 Convertible (E88) 2007 – 2013 135 i (N54 B30 A|N55 B30 A) – 225 kW / 306 HP
  • BMW 1 Coupe (E82) 2007 – 2013 120 d (N47 D20 A|N47 D20 C) – 130 kW / 177 HP
  • BMW 1 Coupe (E82) 2007 – 2013 125 i (N52 B30 A|N52 B30 B|N52 B30 BF) – 160 kW / 218 HP
  • BMW 1 Coupe (E82) 2007 – 2013 135 i (N54 B30 A|N55 B30 A) – 225 kW / 306 HP
  • BMW 1 Coupe (E82) 2007 – 2013 M (N54 B30 A) – 250 kW / 340 HP
  • BMW 3 (E46) 1997 – 2005 318 i (M43 B19 (194E1)) – 87 kW / 118 HP
  • BMW 3 (E46) 1997 – 2005 318 i (N42 B20 A|N46 B20 A|N46 B20 C) – 105 kW / 143 HP
  • BMW 3 (E46) 1997 – 2005 320 d (M47 D20 (204D1)) – 100 kW / 136 HP
  • BMW 3 (E46) 1997 – 2005 320 d (M47 D20 (204D4)) – 110 kW / 150 HP
  • BMW 3 (E46) 1997 – 2005 320 i (M52 B20 (206S4)) – 110 kW / 150 HP
  • BMW 3 (E46) 1997 – 2005 320 i (M54 B22 (226S1)) – 125 kW / 170 HP
  • BMW 3 (E46) 1997 – 2005 323 i (M52 B25 (256S4)) – 125 kW / 170 HP
  • BMW 3 (E46) 1997 – 2005 325 i (M54 B25 (256S5)) – 141 kW / 192 HP
  • BMW 3 (E46) 1997 – 2005 328 i (M52 B28 (286S2)) – 142 kW / 193 HP
  • BMW 3 (E46) 1997 – 2005 330 d (M57 D30 (306D1)) – 135 kW / 184 HP
  • BMW 3 (E46) 1997 – 2005 330 d (M57 D30 (306D2)) – 150 kW / 204 HP
  • BMW 3 (E46) 1997 – 2005 330 i (M54 B30 (306S3)) – 170 kW / 231 HP
  • BMW 3 (E90) 2004 – 2011 320 d (M47 D20 (204D4)) – 110 kW / 150 HP
  • BMW 3 (E90) 2004 – 2011 320 d (N47 D20 A|N47 D20 C) – 130 kW / 177 HP
  • BMW 3 (E90) 2004 – 2011 320 d (N47 D20 C) – 135 kW / 184 HP
  • BMW 3 (E90) 2004 – 2011 320 i (N43 B20 A) – 125 kW / 170 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 (E90) 2004 – 2011 323 i (N52 B25 A|N52 B25 B|N52 B25 BE|N52 B25 BF) – 130 kW / 177 HP
  • BMW 3 (E90) 2004 – 2011 323 i (N52 B25 A|N52 B25 BF) – 140 kW / 190 HP
  • BMW 3 (E90) 2004 – 2011 325 i (N52 B25 A|N52 B25 B|N52 B25 BF) – 160 kW / 218 HP
  • BMW 3 (E90) 2004 – 2011 325 i (N53 B30 A) – 160 kW / 218 HP
  • BMW 3 (E90) 2004 – 2011 330 d (M57 D30 (306D3)) – 170 kW / 231 HP
  • BMW 3 (E90) 2004 – 2011 330 d (N57 D30 A) – 180 kW / 245 HP
  • BMW 3 (E90) 2004 – 2011 330 i (N52 B30 A|N52 B30 BF) – 190 kW / 258 HP
  • BMW 3 (E90) 2004 – 2011 330 i (N53 B30 A) – 200 kW / 272 HP
  • BMW 3 (E90) 2004 – 2011 335 i (N54 B30 A|N55 B30 A) – 225 kW / 306 HP
  • BMW 3 (E90) 2004 – 2011 M3 (S65 B40 A) – 309 kW / 420 HP
  • BMW 3 Compact (E46) 2001 – 2004 318 ti (N42 B20 A|N46 B20 A) – 105 kW / 143 HP
  • BMW 3 Compact (E46) 2001 – 2004 325 ti (M54 B25 (256S5)) – 141 kW / 192 HP
  • BMW 3 Convertible (E46) 2000 – 2007 318 Ci (N42 B20 A|N46 B20 A) – 105 kW / 143 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 electrical components require correct wiring, calibration, or diagnostic scanning after installation. Professional installation is recommended where applicable.

Frequently Asked Questions

How do I know if it is the alternator or the battery?

Both can cause starting and charging problems. A charging-system test distinguishes a failing alternator from a weak battery. Have the system tested before replacing parts to confirm the actual fault.

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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