2018 Audi SQ5 problems, recalls and owner complaints

[B9 SQ5 - EA839 3.0T V6 CWGD] - Remove Front Bumper & Activate Radiator Support Service Position - Drain Cooling System - Remove & Replace Water Pump, Thermo- Pneumatic Valve, & Vacuum Line Set w/ Solenoids & All Necessary Hardware - Remove & Replace Thermostat Assembly w/ Seal - Remove & Replace Both Accessory Drive Belts - Fill & Bleed Cooling System - Reverse Service Mode & Reinstall Front Bumper - Road Test Vehicle & Verify Cooling System Is Operating Properly

I purchased my 2018 Audi SQ5 on September 12, 2025, from Audi Denver (McDonald Automotive Group). On XXX, at 114,145 miles, the vehicle suffered a sudden, catastrophic engine failure while driving on the highway near [XXX], caused by defective rocker arm needle bearings in the 3.0T EA839 V6 engine. ​The early-design needle bearings disintegrated within the cylinder head, scattering loose metal roller bearings into the valvetrain and oiling system. This caused an immediate, complete loss of engine power and sudden engine lockup on a remote stretch of highway. ​This mechanical failure created a…

While driving a 2018 Audi SQ5 with the EA839 3.0T engine, a coolant warning light activated and engine temperatures began rising to 210-215°F. The vehicle was pulled over immediately. Upon inspection the coolant reservoir was found to be nearly empty with dried coolant residue on the exterior indicating an active leak. The vehicle was towed to an authorized Audi dealer who confirmed via multi-point inspection that the water pump, shut off valve, and vacuum system require replacement due to coolant leakage, with a repair estimate of $5,324.87. This is a known defect in the EA839 engine…

Heavy rain leaked into the cabin of my SUV,and damaged the module, no controls worked through the key fob, no start . I keep my SUV under cover 90% of the time. A recent wind storm damaged my car port that I usually keep it under, so lately it’s been outside more often, especially if wind is in the forecast. I still use it if no wind is forecasted, because of the damage I don’t trust the carport until I can repair the damage.

Car's electrical system fried overnight during a rainstorm. All systems unresponsive to keys or key faub. Car was towed to used dealership and they told me due to drainage system blockage a pool of water collected in rear battery compartment and submerged the battery.

During a rainstorm, water drained from roof drains that are apparently supposed to be cleaned & maintenance done by dealership on a regular basis but were clogged due to them not being any maintenance done. Water shorted out the entire control module for the entire vehicle computer after leaking into the rear inside behind hatch where battery and electrical components are located rendering the vehicle dead and undriveable on the side of the road. By the vehicles complete electrical system being rendered dead, this puts those in risk of accidents and is not covered as a warranty item for an…

Oil leaking from the engine. Mechanic determined that it was the Filter Housing. They replaced the filter housing and since then, the problem is all good. I spent over $5000 to identify this problem and get it repaired.

I’m hearing squeaking noise from the steering column when steering left or right slowly of my Audi SQ5 2018 model. I noticed the noise can be heard loud after driving the vehicle for 30 min on the road or longer time driven. The squeaking noise from steering wheel column is often heard when taking the vehicle out from parking lot or moving the vehicle from stationary while turning the steering wheel. It’s kind of creaking noise rubbing off against something and heard from inside the cabin.

The Forward Collision Warning system in my 2018 Audi SQ5 is meant to autonomously apply the vehicle's brakes in the event the car senses an oncoming forward collision. At least five different times over the past five months, my vehicle's Forward Collision Warning system activated and applied the brakes at seemingly random times when there was no possible threat of an oncoming forward collision because, in each instance, the vehicle was being driven on multi-lane highways with no other vehicles, barriers, or any other frontal hazard within a quarter-mile of my vehicle. In four of the five…

While driving the rear half of the sunroof exploded. With no warning there was a sudden, very load "pop". The sunroof pane had completely shattered and was only held in place by the aftermarket tint layer that had been applied. The mesh shade that sits below the sunroof kept any pieces from falling on us while driving. Had the tint and mesh shade not been there, the interior would have been covered in glass. While we can't say with 100% certainty, we don't believe that any objects/debris hit the glass. The broken pane was on the back, downslope of the roof; if debris had hit it it would not…

Two issues: 1. Phantom braking, sudden deceleration, vehicle came to a rapid complete stop on road. Audi assist light came on. Road Conditions: clear, dry, very good visibility for night conditions. 2. While driving at highway speed, i.e. 65 MPH, the transmission disengaged temporarily for several seconds and causing the engine RPM to surge. Transmission re-engaged and operation became normal.

THE CONTACT STATED THAT THE VEHICLE WAS PARKED IN THE GARAGE WITH THE GARAGE DOOR OPEN AND WITH THE PARKING BRAKE ENGAGED. THE CONTACT WAS NOTIFIED BY A NEIGHBOR THAT THE VEHICLE HAD ROLLED FORWARD OUT OF THE GARAGE DOWN A SMALL INCLINED DRIVEWAY, CROSSED THE STREET, AND CRASHED INTO THE CORNER OF THE NEIGHBOR'S HOUSE. THE VEHICLE THEN ROLLED BACK INTO THE STREET AND STOPPED. PRIOR TO THE INCIDENT, NO WARNING INDICATORS WERE ILLUMINATED. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TOWED TO AUDI SOUTH COAST (1425 AUTO MALL DR, SANTA ANA, CA 92705 (714) 973-7766)…