Air flow meter AUDI A4 2003

OEM: 038906461B-4

Disassembled car photo

Engine running

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Details for this exact part

Code
038906461B-4
OEM
038906461B-4
Condition
Used
Availability
1 in stock - ready to ship
Make, model
AUDI A4 2001-2004
Year
2002
Engine
Diesel 1.9TDI 96KW - AWX
VIN
WAUZZZ8EX2A021885

What is this part and why does it matter?

The mass air flow (MAF) sensor measures the volume and density of air entering the engine, letting the ECU calculate the correct amount of fuel to inject.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Rough idle or hesitation on acceleration
  • Poor fuel economy
  • Check Engine light with a MAF-related fault code
  • Engine stalling or difficulty starting

Installation information

Slides or bolts into the intake tract with a seal, and connects to the engine wiring harness — handle the delicate internal sensor wire carefully during installation.

Frequently asked questions

Contamination on the delicate sensing wire or element gives the ECU an inaccurate air reading, which throws off the fuel calculation and can cause the engine to run richer than needed.

Donor vehicle description

VIN
WAUZZZ8EX2A021885
Make, model
AUDI A4
Year
2002
Engine
Diesel 1.9TDI 96KW - AWX
Transmission
Mechanic - FEC
Drive
Front
Equipment
LHD
Colour
4J / Y7R

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