The first thing that you should do is attempt to get replacement car keys for the vehicle. Should this happen, you may be unaware of how to deal with the problem. If both keys are inserted into a malfunctioning EIS unit, both keys are likely to fail. This doesn’t always occur, but it has happened on several occasions. If the EIS unit fails totally, the key is normally thrown out, and the key generally becomes defective as well. What to Do Whenever the Mercedes EIS Malfunctions or Breaks? Jump starting the car as the key is in the ignition.

Listed below are some of the most common causes of an EIS failure: There are several reasons as to why the EIS in your Mercedes may fail. The EIS would most likely be found on these Mercedes chassis:Ī few of the Common Reasons an EIS Might Falter Does My Mercedes Model Have an EIS?ĭo you own a Mercedes supporting EIS with a problem? We’ve discovered that this is a pervasive problem that is creating a lot of frustration among Mercedes owners. It’s the internal computer, and it’s in charge of keeping your car’s engine running smoothly. The Mercedes ECU is an important part of your car. The ability to turn they key and start the car is disabled should the key sequence and EIS not match. Before the function to turn the car key and start the vehicle may be approved, three control systems (ESL, ECU, and EIS) should all confirm that the key is indeed the right one.

Each Mercedes key is programmed with a numerical code that is specific to your car, and when you enter it into the starter, your vehicle performs a sequence of checks to ensure that it is the appropriate key. Do you own a Mercedes that has EIS or ESL? Both the Mercedes EIS (ESL Electronic Ignition Switch,) as well as the ESL systems are designed to keep your vehicle safe from theft.

Bypass eis mercedes