2018 Audi Q7

The 3.0L TFSI V6 engine (EA839) in the Q7 can develop timing chain tensioner wear, leading to timing chain rattle on startup. In severe cases, the chain can jump timing, causing catastrophic engine damage. The issue is more prevalent in engines with higher mileage but has been reported on 2022 models as early as 30,000 miles. A brief rattling or chattering sound during cold start is the primary early symptom.

Dealer replaces the timing chain, tensioner, and chain guides. The upper and lower timing covers must be resealed. Audi has released updated tensioner designs with improved ratchet mechanisms. Reference Audi TSB 2043698/3 for timing chain system diagnosis. Covered under powertrain warranty if within mileage limits.

Q7 models with adaptive air suspension experience compressor failures, particularly in vehicles that spend significant time in off-road or raised ride height modes. The compressor overheats from excessive cycling, often due to small air leaks in the system that it constantly tries to compensate for. Symptoms include the vehicle sitting low after parking overnight, extended compressor run times audible from outside the vehicle, and 'Suspension Fault' warnings.

Dealer replaces the air suspension compressor and checks all air springs and lines for leaks. The compressor relay and valve block should also be tested. Reference Audi TSB 2040162/4 for air suspension diagnosis. Replacing all four air springs preventively when replacing the compressor can extend the new compressor's life.

The Audi MMI Navigation Plus system with the MIB3 infotainment platform freezes, crashes, and reboots during normal operation. Owners report the system taking 30+ seconds to boot after starting the vehicle, Apple CarPlay and Android Auto connections dropping frequently, and the navigation map freezing mid-route. Touch response becomes sluggish over time, and Bluetooth audio may cut out intermittently.

Dealer performs a full MMI system software update including the MIB3 firmware. A factory reset of the MMI system may be required, which erases all personalized settings. In some cases, the MIB3 main unit requires hardware replacement. Audi has released multiple software updates addressing stability issues.

The Q7's auxiliary electric coolant pump, which circulates coolant through the turbocharger and heater core after engine shutdown, can develop leaks at its housing seals. The pump operates intermittently after the engine is turned off, and the resulting coolant loss is often not noticed until the low coolant warning illuminates. The leak typically occurs at the pump-to-hose connection.

Dealer replaces the auxiliary coolant pump and associated hose connections. The cooling system should be pressure-tested to confirm no additional leaks. Updated pump designs with improved sealing are available. Reference Audi TSB 2037891/2 for auxiliary cooling system leak diagnosis.

The power liftgate on the Q7 can fail to open fully, drop back down under its own weight, or refuse to latch closed. The electric struts lose their holding force over time, and the latch solenoid can fail to engage. In cold weather, the liftgate may struggle to open against the weight of accumulated snow and ice. Some owners report the foot-kick sensor beneath the bumper becoming unreliable.

Dealer replaces the power liftgate struts and recalibrates the liftgate module. The latch mechanism should be cleaned and lubricated. The foot-kick sensor antenna module may need replacement if the hands-free opening feature is inconsistent. Reference Audi TSB 2041556/1 for power liftgate diagnosis.

Volkswagen Group of America, Inc. (Audi) is recalling certain 2018-2020 Audi Q7 vehicles. The padding on the vehicle's C-pillar may not absorb enough impact in the event of a crash.

In the event of a crash, an unbelted occupant's head may impact the vehicle's C-pillar padding, increasing the risk of injury.

Audi will notify owners, and dealers will replace the deformation element on the C-pillars, free of charge. The recall began November 17, 2020. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 70H8.

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2019 Audi Q8 and 2017-2019 Audi Q7 vehicles. The bolt connecting the steering shaft to the steering gear may loosen, possibly resulting in a loss of steering control.

A sudden loss of loss of steering control may increase the risk of a crash.

Volkswagen will notify owners, and Audi dealers will inspect and, if necessary, replace the steering shaft bolt, as necessary, free of charge. The recall began March 31, 2020. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 36A1.

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.

A fuel leak in the presence of an ignition source can increase risk of a fire.

Audi has notified owners, and dealers will replace the left and right fuel rail, free of charge. The recall began February 28, 2019. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 24DP.