What to Do When the Mercedes One-Button Start Button Fails?
2 Answers
Locate the password keypad for the one-button start, then manually enter the password to resolve the issue. Here is some information about the one-button start feature: Introduction: The one-button start device is part of a smart car, serving as a button mechanism to simplify the starting process, and it can also turn off the engine. This device can be retrofitted in place of the original car key lock or installed as an independent panel. Starting Method: It is a software-based one-button start system. There are three main points to note when installing a car one-button start system (the wiring connectors under the ignition switch, the position of the button, and the handling of the steering lock), and it comes with multiple functions.
Last time my Mercedes-Benz GLK's one-touch start button got stuck, I directly used the key near the induction area for emergency start. Later at the repair shop, it was found that the spring plate at the button base was broken. The mechanic said this is a common issue with older models. He suggested first checking if the car battery voltage is normal, as sometimes low battery can also cause button failure. If it's indeed physical damage, the cost for replacing just the button assembly is around 600, but the center console panel needs to be removed, which makes the labor cost quite high. If you're handy, you can buy an original part online and replace it yourself—just remember to disconnect the battery to avoid accidental airbag deployment. Now, after half a year with the new button, it's working perfectly, though I did scratch the walnut wood trim during disassembly, which was heartbreaking.
