BRAND NEW *OEM Quality* mass air flow sensor to suit BMW M3 M4 and M2 Competition with the S55 and M5 M6 with the S63.

A drifting meter robs a twin-turbo M car of boost and can drop it into limp mode on the first hard run. Replace it at a fraction of the dealer price - stocked in Melbourne and backed by our returns policy.

TO SUIT

Made for the F80 M3 and F82 F83 M4 including Competition CS and GTS with the 3.0L S55 straight-six twin-turbo (2014 to 2020) and the F87 M2 Competition and CS.

It also fits the F10 M5 and F06 F12 F13 M6 with the 4.4L S63 twin-turbo V8.

FITMENT CHECK

The S55 and S63 twin-turbo engines run one meter per intake side - order two if you are replacing both. M3 and M4 builds are covered to 09/2018 on the M3 - check the build date notes and match 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

On the S55 and S63 each meter reports the air drawn through its own intake path and the DME balances both banks from the two readings. A single failing meter shows as uneven boost and a mixture fault on one bank only.

Tuned cars with open intakes and oiled filters wear meters faster - replacing both together keeps the readings matched.

COMMON SYMPTOMS OF FAILURE

Limp mode or reduced power on hard acceleration
Uneven boost between banks
Bank-specific lean codes P0171 or P0174
Fault codes P0101 or P0102
Misfire-like stumble at high revs

[06/18 - 06/21] BMW 2 F22 / F87 M2 Competition (3.0L 6cyl S55 B30 A Euro 6 302kW)
[11/19 - 06/21] BMW 2 F22 / F87 M2 CS (3.0L 6cyl S55 B30 A Euro 6 331kW)
[03/14 - 10/18] BMW 3 F30 / F80 M3 (3.0L 6cyl S55 B30 A Euro 6 317kW) - built from 06/14 built to 09/18
[03/16 - 10/18] BMW 3 F30 / F80 M3 Competition (3.0L 6cyl S55 B30 A Euro 6 331kW) - built to 09/18
[01/18 - 10/18] BMW 3 F30 / F80 M3 CS (3.0L 6cyl S55 B30 A Euro 6 338kW) - built to 09/18
[03/14 - 03/18] BMW 4 F32 / F82 M4 (3.0L 6cyl S55 B30 A Euro 6 317kW) - built from 06/14
[03/16 - 05/20] BMW 4 F32 / F82 M4 Competition (3.0L 6cyl S55 B30 A Euro 6 331kW)
[07/17 - 06/19] BMW 4 F32 / F82 M4 CS (3.0L 6cyl S55 B30 A Euro 6 338kW)
[03/16 - 06/19] BMW 4 F32 / F82 M4 GTS (3.0L 6cyl S55 B30 A Euro 6 368kW)
[07/14 - 03/18] BMW 4 F33 / F83 M4 (3.0L 6cyl S55 B30 A Euro 6 317kW) - built from 09/14
[03/16 - 09/20] BMW 4 F33 / F83 M4 Competition (3.0L 6cyl S55 B30 A Euro 6 331kW)
[09/11 - 07/15] BMW 5 F10 M5 (4.4L V8 S63 B44 B 412kW)
[02/13 - 10/16] BMW 5 F10 M5 Competition (4.4L V8 S63 B44 B 423kW)
[03/13 - 10/18] BMW 6 F06 M6 (4.4L V8 S63 B44 B 412kW) - built from 06/13
[07/13 - 02/15] BMW 6 F06 M6 Competition (4.4L V8 S63 B44 B 423kW)
[03/15 - 10/18] BMW 6 F06 M6 Competition (4.4L V8 S63 B44 B 441kW)
[03/12 - 02/15] BMW 6 F12 M6 (4.4L V8 S63 B44 B 412kW) - built to 05/18
[07/13 - 02/15] BMW 6 F12 M6 Competition (4.4L V8 S63 B44 B 423kW)
[07/12 - 02/15] BMW 6 F13 M6 (4.4L V8 S63 B44 B 412kW) - built from 09/12
[07/13 - 02/15] BMW 6 F13 M6 Competition (4.4L V8 S63 B44 B 423kW)

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-M
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. S55 and S63 use two meters - check how many you need