P0103 on Audi
Mass or Volume Air Flow Circuit High Input
P0103 on Audi vehicles indicates mass or volume air flow circuit high input. Au7o has documented this code across 1 Audi model — most commonly on A8. This generic code means the PCM detected a higher-than-expected signal voltage or airflow reading from the mass air flow (MAF) sensor circuit. Because the MAF reading directly affects fuel delivery, an abnormally high signal can cause the engine to run rich or behave erratically, with symptoms like rough running, hesitation, or poor fuel economy. It typically points to a sensor or wiring problem, or unmetered conditions confusing the sensor. Typical repair costs on Audi range from $150 to $600, depending on the specific model and root cause.
Common Causes of P0103
- •Faulty or contaminated mass air flow sensor
- •Short to voltage in the MAF signal wiring
- •Damaged connector or corroded terminals at the MAF
- •Intake/vacuum leak affecting the signal
- •Dirty MAF sensor element
- •Poor sensor ground
- •Faulty PCM (rare)
P0103 on Audi by Model
Audi A8(1 issue)
- AGA/ACK 2.8 V6 air mass meter grid detaches and jams throttle valve1996-1998
On 2.8 V6 A8 models fitted with the AGA and ACK engines, engine misfiring may result in damage to the air grid in the air mass meter which could cause the grid to detach and jam the throttle valve. A jammed throttle can cause sudden loss of power control or a stuck-open throttle, presenting a serious drivability and safety risk. The MAF itself also commonly degrades, causing stalling, hesitation and limp mode with codes such as 16487 / P0103 (G70 signal too high).
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View P0103 across all makes →Frequently Asked Questions
What does P0103 mean on Audi?▼
P0103 stands for "Mass or Volume Air Flow Circuit High Input." This generic code means the PCM detected a higher-than-expected signal voltage or airflow reading from the mass air flow (MAF) sensor circuit. Because the MAF reading directly affects fuel delivery, an abnormally high signal can cause the engine to run rich or behave erratically, with symptoms like rough running, hesitation, or poor fuel economy. It typically points to a sensor or wiring problem, or unmetered conditions confusing the sensor. On Audi specifically, this code is documented across 1 model.
What causes P0103 on Audi vehicles?▼
Common causes on Audi: Faulty or contaminated mass air flow sensor, Short to voltage in the MAF signal wiring, Damaged connector or corroded terminals at the MAF, Intake/vacuum leak affecting the signal, Dirty MAF sensor element. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0103 on a Audi?▼
Repair costs on Audi range from $150 to $600, depending on the specific model and root cause.
Which Audi models have P0103 documented?▼
Au7o has documented P0103 on 1 Audi model: A8.