TMAX Anti-Theft Wheel Lock Key 316

For a Mercedes-Benz owner who needs to remove a locking lug nut, this TMAX #316 key is a focused replacement tool—not a general socket for every wheel lock.

It is a one-piece socket adapter with a manganese phosphate coating on its black interior surface.

The deciding detail is the lock pattern. Match it to the key before relying on it for a tire change or garage repair.

Highlights

The #316 key is made for selected Mercedes-Benz vehicles and is intended to engage compatible anti-theft wheel lug nuts. If the original key is missing or unavailable, having the matching pattern can make a wheel change or repair possible without resorting to a less suitable removal approach.

Its one-piece construction keeps the tool straightforward: line up the socket with the locking nut, seat it tightly, and turn counterclockwise to loosen. The manganese phosphate coating is a stated durability feature, though the listing does not provide dimensions or material details beyond that coating. Keep in mind that this is a pattern-specific tool, not a universal Mercedes-Benz key.

How it fits

The product is listed for selected Mercedes-Benz vehicles, but compatibility is determined by the locking lug nut’s visible pattern—not by the vehicle’s make, model, or year alone. Compare the key shape with the lock on your wheel before choosing it. A Mercedes-Benz badge by itself is not enough to establish a match, and the listing does not identify particular vehicle models.

It makes sense if you can confirm that your wheel lock has the #316 pattern and want a dedicated key for removal. If you cannot compare the patterns, the fit remains uncertain, the product information does not provide a separate fitment chart to resolve that question. From the way it is set up, this tool is aimed at removing a matching lock rather than serving as an all-purpose lug-nut socket.

Tips for day-to-day use

Seat the socket firmly against the locking nut, then turn counterclockwise. When working around a wheel, loosen the lug nuts evenly rather than fully removing one nut at a time, this helps reduce pressure on the remaining nuts. For example, during a roadside tire change, make an initial loosening pass around the wheel before taking the nuts off. That approach follows the usage guidance provided and avoids treating each nut as a separate first step.

Do not use this key with an impact wrench, it is explicitly not intended for that. Use a suitable manual turning method, and stop if the socket does not sit tightly or the pattern does not align. Forcing a poor fit is not a substitute for confirming compatibility.

Practical doubts

Does the #316 key fit every Mercedes-Benz? No such broad fit is specified. It is for selected vehicles, and the locking pattern—not the vehicle’s year or model—determines whether it matches.

How do I tell whether it is the right key? Visually compare its pattern with the anti-theft lug nut on your wheel. The product details do not give a model-by-model compatibility list.

Can I use it with an impact wrench? No. The listing says it is not intended for impact-wrench use.

Is it worth it?

This is a practical, narrowly targeted fix when the #316 pattern matches your wheel lock and you need a key for a tire change or garage repair. Its clear use instructions and specific coating are useful details, but they do not remove the main buying risk: choosing the wrong pattern. You may want to skip it if you need a tool for several lock designs, cannot verify the pattern, or expect to use an impact wrench. Compared with a more general removal tool, this key makes more sense when you want the matching dedicated adapter, it is not a safer bet when fit is unknown.