The wiring harness for the seatbelt pretensioner wore through in its normal factory installed location and shorted out, causing the air bag light to come on. No modifications have ever been done to the vehicle to disturb this path and causing wire chafing. It is highly doubtful the pretensioner would have worked either, as 3 out of the 4 wires had their insulation worn through. This was diagnosed by the dealership and video of the issue was provided at https://r7788463.m.reyrey.net/app/?ref=aO9XDMndQtSq554Czq1dQg%3D%3D&sys=e1b63ec6-8626-424a-b7a7-80e9ade1db58 I have had this fixed, but the text messages with the dealership lead me to believe that this is not the first time they have seen and repaired the issue.

- Mead, CO, USA

The contact owns a 2016 Mercedes-Benz Metris. The contact stated that while driving at various speeds, the air bags warning light illuminated. The contact was concerned about the safety of driving the vehicle with inoperable air bags. The vehicle was taken to Mercedes-Benz of anaheim located at 5395 E la palma ave anaheim, ca 92807, however, the mechanic was unable to duplicate the failure. The vehicle was not diagnosed nor repaired. The manufacturer had not been informed of failure. The failure mileage was approximately 54,516.

- Fullerton, CA, USA

Engine on and vehicle parked for 10 minutes with parking brake applied. Leaving from a parked position with engine running, parking brake released, I shifted from park into drive but the vehicle showed I was still in park. Could hear transmission shifting from P to D and to R but no information feedback. Eventually I found that I could engage in reverse, neutral, park, and drive but only park was showing on display. I tried restarting the van but it didn't change. Received errors for turning car off while in drive even though I was in park. I ended up driving with the car in "park" for about 100 miles to my destination. During the drive, there were lots of errors mainly the speedometer would not work ( had power but only said 0 mph). The tachometer remained at ~800rpm regardless of actual RPM. The gas gauge wouldn't work. Numerous errors occurred with the active braking system (alarm only). The SRS defective indicator remained on the entire drive. When I reached my destination (gas station), shifted to park. I turned the car off again and completely disconnected everything electrical and let the van sit for ~5 minutes. The errors cleared when I restarted and the speedometer/tachometer/gas/SRS all worked but I had a new check engine light activated. The only message was still related to SRS but the cel stayed on even after acknowledging the service message. After about ~200 miles and 3-4 restarts the cel cleared and everything worked properly for the remainder of our trip (about 1000 miles round trip). Later, I was able to recreate a similar system malfunction when applying the parking brake. I've since been able to conjur random errors all related with safety systems and the park/drive/reverse scenario 50% of the time after applying and releasing the parking brake. The errors only happen after activation and release of the parking brake (so far to this day).

- Camas, WA, USA