Back to 2018 Audi A6

2018 AUDI A6

3.0L Supercharged V6FWDAUTOMATICgassupercharged
2 active safety recalls on this vehicle — view recalls
Repairs0Labor494Torque3881Fluid6DTC922Battery0Maintenance0Recalls2
P0109moderate severityPowertrain

MAP/BARO Pressure Circuit Intermittent

on 2018 Audi A6 3.0L Supercharged V6 · FWD

What this code means

The MAP sensor signal is showing intermittent readings.

Symptoms

  • Check Engine Light (intermittent)
  • Erratic idle
  • Stumble on acceleration

Common causes

  • Loose connector
  • Damaged wiring
  • Intermittent vacuum leak

Diagnostic steps

  1. Wiggle test on connector
  2. Monitor MAP signal
  3. Check vacuum hose

Repair notes

Repair connector or wiring.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →