Does the Mercedes sealing gasket screw require torque installation?
2 Answers
Mercedes sealing gasket screws require torque installation, with the tire screw torque value approximately between 100-120Nm. Reasons for broken tire screws: First, it could be a quality issue from the original manufacturer, which is covered under warranty. Second, during previous tire changes, for convenience, the maintenance technician might have overtightened the wheel hub nuts using an impact wrench, leaving potential hazards for the wheel hub screws. Repairing broken tire screws: It is not recommended to handle it yourself. If you must do it yourself, first use a jack to remove the wheel hub nuts in a diagonal sequence, then take off the wheel hub and tire. Generally, the brake disc has removal ports reserved; you can use the spare long screw from the vehicle toolkit to push out the brake disc. If the vehicle design includes a reserved position at the bearing area, the remaining part of the screw can be unscrewed and replaced according to the screw specifications.
I've been working on Mercedes-Benz vehicles for a long time and found that gasket bolts absolutely require torque installation, otherwise problems can easily arise. For example, if you just tighten by feel, loose bolts can cause oil or coolant leaks, dirtying the engine bay or leading to overheating issues; overtightening, on the other hand, might crack the gasket or strip the threads, resulting in more expensive repairs. Mercedes-Benz designs are very precise, and the manual usually specifies torque values—for instance, oil pan bolts might require around 25 Newton meters. I recommend getting a torque wrench and following the specified values for a safe and worry-free job. Don’t underestimate this small detail—it can prevent major issues and extend your car's lifespan.
