2018 Audi Q7 Problems: 4 Known Issues
2018 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated October 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Audi Q7 has 4 documented known issues, with 1 rated critical. The most serious is 2017-2018 Q7 4M Fuel Rail Weld Porosity Leak - Safety Recall 24DP / NHTSA 19V035 ($0-$0 repair). Across all issues with published estimates, repair costs range from $700 to $2,200. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls12 recalls
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2013-2017 Audi Q5 and 2013-2017 Audi Q7 vehicles. These gasoline-powered vehicles have a fuel pump flange that may crack, allowing fuel to leak.
EQUIPMENT:OTHER:LABELS
Volkswagen Group of America, Inc. (Audi) is recalling certain 2009-2015 Q7 vehicles. The Gross Axle Weight Rating (GAWR) listed on the certification label is incorrect, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims," and Part 567, "Certification."
FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL
Volkswagen Group of America, Inc. (Audi) is recalling certain 2016-2018 Q7, A6 and A7 vehicles, and 2015-2018 Audi A8 vehicles. The left and right fuel rails may leak fuel.
AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2017 Audi Q7 vehicles manufactured August 30, 2015, to May 8, 2016. Due to a software issue within the air bag control module, the frontal air bags may deploy with more force than required in certain crashes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
SEATS:MID/REAR ASSEMBLY
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2017 Audi Q7 vehicles manufactured August 30, 2015, to July 10, 2016. In the affected vehicles, the third row seat back may move forward under load, such as in a frontal collision. As such, the vehicles do not conform to Federal Motor Vehicle Safety Standard (FMVSS) number 207, "Seating Systems."
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Frequently Asked Questions
What are the most common Audi Q7 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Audi Q7 has 4 documented issues. The most frequently reported are: 2017-2018 Q7 4M Fuel Rail Weld Porosity Leak - Safety Recall 24DP / NHTSA 19V035, 2017-2019 Q7 4M Front Lower Control Arm Hydro-Bushing Leak - Low-Speed Clunk, 2017-2019 Q7 4M MMI Touch Response Spontaneous Reboot and Blank Screen with CarPlay/Android Auto. Of these, 1 is rated critical and should be addressed promptly.
Is the Audi Q7 reliable?
The 2018 Audi Q7 has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: 2017-2018 Q7 4M Fuel Rail Weld Porosity Leak - Safety Recall 24DP / NHTSA 19V035. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Audi Q7 problems?
Repair costs for known Audi Q7 issues range from $0 to $2,200, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 2017-2018 Q7 4M Fuel Rail Weld Porosity Leak - Safety Recall 24DP / NHTSA 19V035, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2017-2018 Audi Q7 2017-2018 Q7 4M Fuel Rail Weld Porosity Leak - Safety Recall 24DP / NHTSA 19V035?
A separate, later fuel rail defect affects the second-generation Q7. Variation in the supplier's welding process left porous or incomplete welds in the left and right fuel rails of the supercharged 3.0 TFSI (EA837 evo), which can seep or leak fuel under high rail pressure. Audi r… Repairs typically run $0-$0. Severity: high.
What is the 2017-2019 Audi Q7 2017-2019 Q7 4M Front Lower Control Arm Hydro-Bushing Leak - Low-Speed Clunk?
The second-generation Q7 (4M, MLB Evo) uses a large fluid-filled hydraulic bushing on the front lower control arms to isolate road noise. The rubber splits and the fluid escapes, leaving a loose bushing that lets the arm move against its bracket. Owners hear a hollow clunk, pop o… Repairs typically run $700-$2,200. Severity: medium.
What is the 2017-2019 Audi Q7 2017-2019 Q7 4M MMI Touch Response Spontaneous Reboot and Blank Screen with CarPlay/Android Auto?
The 4M Q7's dual-screen MMI Touch Response infotainment head unit reboots on its own while driving - screens go black, the system restarts, and radio/navigation/phone drop out, sometimes several times on a long trip. A related and better-documented fault covered by Audi service b… Repairs typically run $0-$1,500. Severity: medium.
What is the 2011-2019 Audi Q7 3.0 TFSI Intake Valve Carbon Buildup - Direct Injection Deposits Causing Misfire and Power Loss?
The supercharged 3.0 TFSI in the 4L is direct-injected only, so no fuel ever washes the back of the intake valves; the 4M's 3.0 TFSI (CREC) adds port injection alongside direct injection, which reduces but does not eliminate this buildup. Oil vapor drawn in through the PCV system… Repairs typically run $800-$1,500. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.