C110B on Audi
Adaptive Cruise Control Sensor - Restricted View
C110B on Audi vehicles indicates adaptive cruise control sensor - restricted view. Au7o has documented this code across 1 Audi model — most commonly on A8. The distance regulation control module J428 has determined that one or both ACC radar sensors have gone an extended period without detecting any object, which the software interprets as the sensor's field of view being obstructed. ACC and the braking guard are deactivated as a protective measure. Audi TSB 2033355 covers this condition on 2011-2018 A8 and related A6/A7 models.
Common Causes of C110B
- •Snow, ice, mud, road salt, or heavy dirt on the radar sensor cover or bumper area
- •Aftermarket license plate frame, bracket, or bumper accessory in front of the sensor
- •Front-end damage or a repainted/repaired bumper altering radar transmissivity
- •Radar sensor out of alignment after bumper or suspension work
- •Extended driving on an empty road with no targets (can set the code benignly)
- •Failed radar sensor requiring replacement and calibration
C110B on Audi by Model
Audi A8(1 issue)
- 2011-2018 A8 ACC Inoperative with C110BF0 - TSB 2033355/32011-2018
On adaptive-cruise-equipped 2011-2018 Audi A8 vehicles, ACC may be unavailable and the distance-regulation controller may store C110BF0, adaptive cruise control sensor restricted view. Audi identifies environmental obstruction, sensor contamination, bumper or bracket influence and alignment/calibration conditions as diagnostic branches; the code alone does not prove that the radar sensor has failed.
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View C110B across all makes →Frequently Asked Questions
What does C110B mean on Audi?▼
C110B stands for "Adaptive Cruise Control Sensor - Restricted View." The distance regulation control module J428 has determined that one or both ACC radar sensors have gone an extended period without detecting any object, which the software interprets as the sensor's field of view being obstructed. ACC and the braking guard are deactivated as a protective measure. Audi TSB 2033355 covers this condition on 2011-2018 A8 and related A6/A7 models. On Audi specifically, this code is documented across 1 model.
What causes C110B on Audi vehicles?▼
Common causes on Audi: Snow, ice, mud, road salt, or heavy dirt on the radar sensor cover or bumper area, Aftermarket license plate frame, bracket, or bumper accessory in front of the sensor, Front-end damage or a repainted/repaired bumper altering radar transmissivity, Radar sensor out of alignment after bumper or suspension work, Extended driving on an empty road with no targets (can set the code benignly). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C110B on a Audi?▼
Repair costs vary widely depending on the root cause and specific Audi model.
Which Audi models have C110B documented?▼
Au7o has documented C110B on 1 Audi model: A8.