This bulletin provides informaiotn when the starter battery is discharged or defective.
full bulletin at NHTSA ↗2018 Audi Q7 electrical problems
severe 13 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
13
Recalls
0
Avg fix
$850
1injury
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin provides informaiotn when the starter battery is discharged or defective.
full bulletin at NHTSA ↗This bulletin provides informaiton regarding the Universal Traffic Recorder.
full bulletin at NHTSA ↗This bulletin provides informaiotn about various infortainment system complaints.
full bulletin at NHTSA ↗This bulletin provides information when the parking assistance gives false warnings.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2018 Audi Q7 shows a cluster of electrical faults spanning the MMI infotainment system, driver-assistance sensors, fuel-level reporting, lighting, and backup camera logic. The MMI system restarts unpredictably every few minutes, whether the vehicle is driven or parked, rendering navigation and radio unusable at times. Owners report false Pre Sense warnings causing the vehicle to brake hard mid-intersection or mid-turn, sometimes with oncoming traffic 150 yards away. One owner's vehicle jammed to a stop in an intersection; Audi attributed this to high sensor sensitivity. The fuel gauge displays incorrect levels or sticks at a single reading, causing owners to run out of fuel on the highway with engine stall—a safety hazard. Audi identified a stuck fuel-level sender in the tank as the root cause for some cases, citing recall 22V155. Front right side marker light faults recur repeatedly even after service, with some owners reporting the issue twice within the vehicle's ownership. The backup camera randomly switches from camera mode to graphics mode while reversing, regardless of manual setting. One owner's vehicle locked all doors unpredictably with a child inside, with the dealership unable to explain the event. Additional issues include interior ambient light bars displaying incorrect color at startup and the start-stop feature engaging before the vehicle fully stops due to speedometer inaccuracy.
Same Audi Q7 electrical reports on nearby years: 2017 · 2021
Failure modes owners describe
MMI System Restarts
Infotainment and control module shuts down and restarts unpredictably every few minutes, whether driving or parked. System controls radio, navigation, and vehicle settings.
When: Started a few months prior to complaint; increasing frequency
Symptoms owners cite: Complete MMI shutdown and restart cycle; Navigation unavailable during restarts; Radio inoperable during restarts; Occurs randomly while driving or parked
False Pre Sense Emergency Braking
Driver-assistance system applies full braking based on false object detection, causing vehicle to stop hard in traffic. Occurs mid-intersection and mid-turn with oncoming traffic nearby. Audi attributed sensitivity to high sensor settings.
When: Multiple service visits starting December 2017 within 3 months of lease
Symptoms owners cite: Vehicle brakes hard mid-intersection; Vehicle brakes hard mid-turn; False Pre Sense warnings displayed; MMI reboots preceding brake events
Repairs/costs cited: Audi replaced MMI system and fuel tank (for faulty valve). Repeated system resets performed. Issue persisted after repairs.
Recalls/TSBs owners mention: Audi claimed Pre Sense sensors set to high sensitivity; stated potholes or birds could trigger false detection
Fuel Level Sender Malfunction
Fuel gauge displays incorrect fuel level or sticks at a single level despite actual fuel consumption. Sender unit located in gas tank gets stuck on ventilation pipe, causing dashboard to show incorrect remaining range. Owners run out of fuel on highway with no warning.
When: Occurs at various mileages: one at 42k miles, one at unspecified mileage
Symptoms owners cite: Fuel gauge stuck at fixed level; Dashboard displays high remaining fuel range when low; No low-fuel warning light; Engine stalls while driving highway at speed
Repairs/costs cited: Kansas City dealer quoted $5,000 for repair. Audi identified stuck fuel-level sender on ventilation pipe inside tank.
Recalls/TSBs owners mention: NHTSA recall 22V155 / Audi campaign 20DN issued for fuel-level sender defect
Front Right Side Marker Light Defect
Front right side marker light fault displayed repeatedly on dashboard. Issue recurs after dealership service repairs. Owners report this is a known widespread issue affecting 2017–2019 generation vehicles with high repair costs.
When: Recurs at 66k miles and 100k+ miles; occurred twice in same vehicle
Symptoms owners cite: Dashboard error: 'Front Right Side Marker Light Defective'; Light fault recurs after repair
Repairs/costs cited: Over $4,000 per repair instance reported. Owners state issue has recurred twice on same vehicle.
Recalls/TSBs owners mention: NHTSA recall 97CB (campaign ID 16V642000) addresses this issue but does not cover all VINs in 2018 model year
Backup Camera Mode Reversion
Backup camera unpredictably reverts from camera view to graphics mode while reversing, despite manual setting to camera mode. Behavior is random and inconsistent.
When: Occurs during reverse operation; issue described as known defect in 2018 Audi models
Symptoms owners cite: Camera display switches to graphics mode while reversing; Mode change occurs despite being set to camera mode; Random and unpredictable switching; Requires manual adjustment while backing up (distracting)
Recalls/TSBs owners mention: Owner notes this is a known defect in 2018 models and was fixed in later releases; no retrofit update offered to existing vehicles
Unexpected Door Locks and Ignition Shutdown
Vehicle automatically locked all doors with child inside and ignition turned off despite keys being inside the car and remote control functional. Occurred after routine service.
When: 6 days after service appointment at Audi Fort Myers
Symptoms owners cite: All doors locked spontaneously; Ignition turned off without driver action; Remote control operable but did not unlock doors; Child trapped inside in Florida heat for ~20 minutes
Repairs/costs cited: Fire department broke window to remove child. Child was overheated and soaked in sweat.
Recalls/TSBs owners mention: Audi service department reported no event registered in computer system; dealership stated they could not explain the incident and could not provide remedy
Interior Ambient Light Bar Color Defect
Interior color light bars display pink instead of white at startup after dealership repair attempt. Dealership disputed color identification.
When: Issue developed; repair attempted but not resolved
Symptoms owners cite: Light bars display pink color at startup instead of white; Inconsistent light bar color after repair
Repairs/costs cited: Dealership attempted to repair inconsistency but created new color defect
Start-Stop Feature Timing Error
Engine start-stop feature engages before vehicle fully stops. Occurs because speedometer reading is 1–2 mph faster than actual vehicle speed, causing premature shutdown during slow-speed braking.
When: Occurs during slow-speed braking and stop-sign approaches
Symptoms owners cite: Engine shuts down before vehicle comes to complete stop; Vehicle lurches when stopping without engine power; Speedometer reads 1–2 mph higher than actual speed; Transmission forced to turn after engine shutdown
Recalls/TSBs owners mention: Dealership confirmed this is part of the start-stop feature operation
Intermittent Low Oil Light
Low oil warning light illuminates between scheduled oil changes with no corresponding oil level issue.
When: Occurs between oil change intervals
Symptoms owners cite: Low oil light comes on between services; No actual oil deficiency
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Getting error message regarding "Front Right Side Marker Light Defective". My car has a little over 66K and has no problems. There was an Audi recall ampaign97CB (NHTSA campaign ID #16V642000) that addresses this exact issue and applies to some affected VIN numbers, but mine is not included.
Had electrical trouble with your 2018 Audi Q7?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2018 Audi Q7?
It's a meaningful issue. 13 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 13 complaints filed, electrical issues most often appear around 11,200 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Audi/Q7.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.