There are 1 owner-reported tires & wheels complaints for the 2014 Mercedes-Benz GL-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Front drivers side (Front Left) Aluminum wheel rim is cracked and will not hold tire pressure. We loose about 10 psi per day because of it. Now we have to replace this rim at significant cost. However, that's not the main issue. The main issue is whether this is a manufacturing defect that has put our lives at risk since 2014 (bought it brand new) until now in 2023 - over 9 years. The tire dealer Firestone discovered the crack and let us know. Yes, available for inspection. Yes, safety has been put at risk. Yes, confirmed by local Firestone Tire near us. Insurance may inspect it, we are calling them tomorrow as they are closed now. Tire pressure light went on, and has been on for awhile. But who would have thought to inspect rim, it is steel, and should not have cracked. Friends of mine say that it is possibly an OEM defect as Aluminum cast wheels should not do this. This car has never been in a moderate or serious crash. Fender benders sure, but nothing involving the tires.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026