2018 Audi A4 Electrical system Problems
- Complaints
- 17about this part
- Share
- 38%of 45 total for the year
- Median mileage
- —not reported
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 17 complaints about the electrical system of the 2018 Audi A4, 38% of the 45 complaints for this model year.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My screen turns on and off consistently not allowing me to use my backup camera. Causing a small collision while backing up when the camera turned off unexpectedly. Additionally when it’s off it will auto break when I’m not close enough to hitting and it’s loud and yanked me. This has been an issue for some time and I’m seeing a significant amount of my models have this issue and it’s not safe.”
NHTSA complaint #11702346, filed 2025-12“A vehicle diagnostic scan dated 04/15/2026 showed electrical communication faults involving vehicle control modules. The scan showed U014100, described as “Lost Communication With Body Control Module ‘A’,” with status listed as passive/sporadic. The scan also showed U112100, described as “Data bus message missing,” with status listed as active/static. …”
NHTSA complaint #11747863, filed 2026-07“The vehicle has a recurring interior rattle / loose-trim concern involving interior panels, trim, speaker/subwoofer area, rear shelf, dashboard area, or related mounting components. The noise is not merely a comfort concern if it is caused by a loose component, fastener, grille, panel, or speaker housing that may move, worsen, detach, or distract the driver. …”
NHTSA complaint #11747854, filed 2026-07“SAFETY AND THEFT ISSUE!! The door lock actuators on two doors of vehicle. Front and back seat where children ride. The actuators failed to engage leaving it easy for anyone to open the door from the outside even when presumed locked. Actuators do not engage which leaves vehicles prone to theft and allows anyone to open the door included a child from the inside of the vehicle at any time.”
NHTSA complaint #11589519, filed 2024-05“The exterior side mirrors have intermittent electrical/memory malfunctions. When locking the vehicle, the side mirrors begin to fold, pause or glitch briefly, and then continue folding. Separately, when the vehicle is shifted into reverse, the right-side mirror tilts downward to assist with backing/parking, but when shifted back to drive or park, the mirror does not reliably return to its original saved position and requires manual readjustment. …”
NHTSA complaint #11747845, filed 2026-07Related service bulletins
- 11038061Sep 2, 2026This bulletin provides information regarding fault finding and repair information for electric tailgate.
- 11036974Aug 7, 2026This bulletin provides informaiton when the airbag warning lamp is active, event memory "B200000 - Faulty control module, symptom 305".
- 11035810Jul 9, 2026This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
- 11034643Jun 23, 2026This bulletin provides information when there are noises from the area around the instrument cluster.
- 11034634Jun 23, 2026This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
- 11033492May 22, 2026This bulletin provides informaiotn when the starter battery is discharged or defective.
- 11032165Apr 30, 2026This bulletin provides informaiotn when the starter battery is discharged or defective.
- 11031053Mar 26, 2026This bulletin provides informaiton regarding the Universal Traffic Recorder.
- 11031051Mar 20, 2026This bulletin provides informaiotn about various infortainment system complaints.
- 11030985Mar 17, 2026This bulletin provides information when the parking assistance gives false warnings.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 3 | 30% |
| 2021 | 3 | 27% |
| 2020 | 91 | 71% |
| 2019 | 3 | 30% |
| 2018 | 17 | 38% |
| 2017 | 6 | 11% |
| 2016 | 3 | 27% |
| 2015 | 3 | 16% |
| 2014 | 3 | 9% |
| 2013 | 2 | 8% |
| 2012 | 2 | 11% |
| 2011 | 1 | 9% |
| 2010 | 2 | 3% |
| 2009 | 3 | 3% |
| 2008 | 9 | 5% |
| 2007 | 10 | 5% |
| 2006 | 21 | 7% |
| 2005 | 24 | 11% |
| 2004 | 15 | 8% |
| 2003 | 32 | 15% |
| 2002 | 76 | 42% |
| 2001 | 35 | 27% |
| 2000 | 11 | 11% |
| 1999 | 11 | 6% |
| 1998 | 23 | 9% |
| 1997 | 33 | 34% |
| 1996 | 26 | 29% |
Other parts of the 2018 Audi A4
18 complaintsFuel system
6 complaintsBody and structure
6 complaintsEngine
5 complaintsTransmission and drivetrain
5 complaintsAir bags
4 complaintsBrakes
4 complaintsForward collision avoidance
4 complaintsBack-over prevention (rear camera)
2 complaintsSuspension
2 complaintsElectronic stability control
1 complaintsEngine cooling
1 complaints
← All problems reported for the 2018 Audi A4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology