Clockspring failure
In August 2015, VW launched Safety Recall 15V-483 to address the loss of the protection provided by the front driver air bag in several models due to the failure of the clock spring. VW’s recall indicated that debris entry into the steering wheel hub can result in the contamination and ultimately failure of the clock spring in 2010-2014 MY CC, Eos, GTI, Golf, Jetta, Jetta Sportwagen, Passat, and Tiguan models. The contamination of the clock spring by debris, such as human hair, can cause the flat ribbon cable to tear. This results in the loss of the electrical connection to the front driver air bag and any steering wheel mounted controls. The clock spring is designed so that the flat cable inside will break with minimum force to prevent it from impeding movement of the steering wheel. The loss of the electrical connection to the front driver air bag results in the immediate illumination of the air bag warning light and prevents the deployment of the front driver air bag in a collision of sufficient severity. A torn clock spring also causes audible grinding noises from the area of the steering wheel/driver air bag or steering column while steering. The failure of the clock spring does not impair vehicle control or drivability (steering, brakes, acceleration). In November 2017, the Office of Defects Investigation (ODI) opened Recall Query RQ17009 after receiving complaints that alleged the failure of the clock spring in the subject models. While the majority of these complaints involved vehicles excluded from the original recall, several complaints involved vehicles that had received the remedy for Recall 15V-483. On April 18, 2018, ODI upgraded the investigation to Engineering Analysis EA18003 after receiving additional complaints concerning the recall remedy and scope of Recall 15V-483. During the investigation, VW identified certain 2015-2018 MY vehicles that share a common steering wheel clock spring with the vehicles covered under Recall 15V-483. VW began using a different clock spring design starting with the 2019 MY Jetta. This new part is not compatible with previous model years due to the communication properties between the clock spring and the vehicle, including the air bag control module. In October 2018, VW released Warranty Extensions AWA-18-18 and VWP-18-11, which established a 15-year, unlimited mileage coverage for the Steering Wheel Clock Spring for vehicles included in the scope of Recall 15V-483. For certain 2010-2018 MY vehicles outside of the recall scope, a 10-year, 120,000-mile coverage was given. Vehicles repaired under these warranty extensions receive replacement clock springs at no charge to the consumer. In early 2023, VW updated AWA-18-18 (now AWA-23-01) and VWP-18-11 to upgrade certain vehicles and model years from the 10-year, 120,000-mile coverage to the 15-year, unlimited mileage coverage option. These warranty extensions cover vehicles with recall remedy failures as well as vehicles outside of the Recall 15V-483 scope that exhibited similar failures. In view of the circumstances, including the high detectability of the subject failure and warranty extensions issued by VW, ODI is closing this Engineering Analysis. NHTSA reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.