BRAND NEW *OEM Quality* mass air flow sensor to suit BMW 1 Series F20 F21 and 2 Series F22 F23 F45 petrol turbo models.

Jerky take-off and a flat spot around town are classic signs of a worn meter on the small BMWs. This replacement plugs straight in - packed and shipped from Cranbourne VIC.

TO SUIT

Made for the F20 and F21 1 Series 116i 118i and 120i with the 1.6L N13 turbo (2011 to 2016) plus the 118i with the 1.5L B38 three-cylinder and the 125i with the 2.0L N20.

It also fits the 2 Series F22 and F23 220i and 228i coupe and convertible and the F45 Active Tourer 218i 220i and 225i.

FITMENT CHECK

The F45 Active Tourer uses this meter on cars built up to 03/2018 and the F20 118i B38 up to 05/2019. Check your build date and match the old meter to OEM 13627602038.

OEM PART NUMBERS

BMW: 13627602038
BMW: 7602038
MINI: 13627602038

OTHER PART NUMBERS

0280218266
V20-72-5174
8ET358095461
EPP-BM-018
245-1292
2505120
7.07759.65.0
AM8266GEN
AMM9416

PACKAGE INCLUDES

1 x mass air flow meter insert with 4-pin oval connector. Insert only - fits into your existing intake duct housing. No air temperature sensor built in.

ABOUT THIS SENSOR

The small-capacity N13 and B38 turbo engines rely on an accurate air mass reading at low revs - a drifting meter makes them surge or hesitate as you pull away from the lights.

On the 1.6L N13 a faulty meter is often misdiagnosed as an ignition fault because it shows up as a stutter under light load.

COMMON SYMPTOMS OF FAILURE

Jerky or hesitant take-off from a standstill
Surging at light throttle around town
Engine light with fault code P0101 or P0103
Idle hunting on a cold engine
Poor fuel consumption

[07/11 - 12/15] BMW 1 F20 116 i (1.6L 4cyl N13 B16 A 100kW)
[07/15 - 06/19] BMW 1 F20 118 i (1.5L 3cyl B38 B15 A 100kW) - built to 05/19
[03/15 - 06/15] BMW 1 F20 118 i (1.6L 4cyl N13 B16 A 100kW)
[07/11 - 02/15] BMW 1 F20 118 i (1.6L 4cyl N13 B16 A 125kW)
[03/15 - 06/16] BMW 1 F20 120 i (1.6L 4cyl N13 B16 A 130kW)
[03/12 - 06/16] BMW 1 F20 125 i (2.0L 4cyl N20 B20 A 160kW) - built to 06/16
[12/11 - 12/15] BMW 1 F21 116 i (1.6L 4cyl N13 B16 A 100kW)
[07/12 - 02/15] BMW 1 F21 118 i (1.6L 4cyl N13 B16 A 125kW) - built to 02/15
[10/13 - 03/15] BMW 2 F22 / F87 220 i (2.0L 4cyl N20 B20 B / N20 B20 A 135kW) - built to 06/16
[07/14 - 07/16] BMW 2 F22 / F87 228 i (2.0L 4cyl N26 B20 A / N20 B20 A 180kW)
[04/14 - 06/21] BMW 2 F23 220 i (2.0L 4cyl N20 B20 B / N20 B20 A 135kW) - built to 06/16
[11/14 - 07/16] BMW 2 F23 228 i (2.0L 4cyl N20 B20 A 180kW)
[07/14 - 03/18] BMW 2 F45 218 i (1.5L 3cyl B38 A15 A Euro 6 100kW) - built to 03/18
[03/14 - 03/20] BMW 2 F45 220 i (2.0L 4cyl B48 A20 A / B48 A20 F 141kW) - built from 11/14 built to 03/18
[11/13 - 10/16] BMW 2 F45 225 i (2.0L 4cyl B48 A20 B 170kW) - built to 03/18

Can I clean my MAF sensor instead of replacing it?

Yes - if the sensor is contaminated rather than electrically failed, cleaning with a dedicated MAF sensor cleaner spray can restore correct readings. Do not use brake cleaner or generic electrical contact cleaner as these leave residue that damages the sensing wire. Allow the sensor to dry completely before reinstalling. If cleaning does not resolve the fault codes, the sensor requires replacement.

What is the difference between a MAF sensor and a MAP sensor?

A MAF (Mass Air Flow) sensor directly measures the mass of air entering the engine using a hot wire element in the intake. A MAP (Manifold Absolute Pressure) sensor measures intake manifold pressure to calculate air density. Most modern engines use one or the other - some use both. Your vehicle service manual or OBD2 fault codes will confirm which sensor type your engine uses.

Will a faulty MAF sensor cause my vehicle to fail an emissions test?

Yes. A faulty MAF sensor causes the ECU to miscalculate fuel delivery, typically resulting in a rich running condition that increases CO and hydrocarbon emissions. Most roadworthy and emissions checks will fail a vehicle with an active MAF sensor fault code or visibly excessive exhaust smoke.

What are the symptoms of a bad MAF sensor?

Common symptoms include rough idle, hesitation or stumbling on acceleration, poor fuel economy, black smoke from the exhaust, and an illuminated Check Engine light. Your ECU may log fault codes P0100 to P0104.

Can I drive with a faulty MAF sensor?

You can drive short distances but it is not recommended. A faulty MAF sensor causes the ECU to run incorrect fuel mixtures, which can damage the catalytic converter and O2 sensors over time. Have it replaced as soon as possible.

How do I test if my MAF sensor is bad?

Use an OBD2 scanner to check for fault codes P0100-P0104. You can also use a multimeter or live data scanner to check the sensor output voltage against your vehicle's specification. A reading significantly outside spec confirms a faulty sensor.

What causes a MAF sensor to fail?

The most common causes are a dirty or contaminated sensing element (often from a missing or damaged air filter), oil contamination from an over-oiled aftermarket air filter, heat damage, or general wear over time.

Do I need to reset my ECU after replacing the MAF sensor?

It is good practice to clear any stored fault codes using an OBD2 scanner after replacement. Some vehicles will self-adapt within a short drive cycle, but clearing codes ensures the ECU recalibrates from a clean baseline.

Identification
SKU	CAF189-1S
Brand	Aftermarket OEM Replacement
Part Numbers
Part Number	CAF189
Reference OEM Number	13627602038
Other OEM Numbers	13627602038, 7602038
Related Part Numbers	AM8266GEN, 0280218266, AMM9416
Trade Part Numbers	0280218266, V20-72-5174, 8ET358095461, EPP-BM-018, 245-1292
Product Specifics
Product Type	SENSOR
Sensor Type	Mass Air Flow (MAF) Sensor
Number of pins	4-Pin
Connector Shape	oval
Voltage	12 V
Housing Type	without housing
Mounting Type	Bolted
Compatible Makes	BMW
Fitment Type	Direct Replacement
Other Details
Note	Insert only. F45 Active Tourer built to 03/2018 only