What to do if your Mercedes ignition switch fails?
Once the switch fails, you won’t be able to start your vehicle. Because newer Mercedes models also use laser-cut transponder keys, you may need to have your ignition key re-cut or reprogrammed depending on the model of Mercedes you have. The first step, of course, is to remove the old ignition switch.
How do you change the ignition key on a Mercedes?
Because newer Mercedes models also use laser-cut transponder keys, you may need to have your ignition key re-cut or reprogrammed depending on the model of Mercedes you have. The first step, of course, is to remove the old ignition switch. Adjust the Mercedes telescoping steering wheel to the maximum extended position (maximum out position).
Where is the ignition plug on a Mercedes?
Turn the ignition key to the “I” position and remove the electrical plug in the back of the ignition switch. The switch should be exposed now that the cowl and instrument cluster have been removed. You will access the plug from the top of the ignition switch and cylinder assembly.
What to do if your Mercedes key doesnt work?
If you find that sometimes the key fob doesn’t always work the first time around, you might need to bring your key fob in for servicing. Mercedes drivers with manual keys might also begin to encounter difficulty with the efficiency of the key’s ability to start the ignition or to unlock the doors.
What to do if your Mercedes ignition switch is not working?
If you have a spare key try to see if you are experiencing the same symptoms with the other key. If the other key works, keep using it for a couple of weeks to verify that the issue is really the key and not the EIS. Try scanning your Mercedes-Benz for fault codes. Ideally using a Start Diagnostic Scanner.
Why does my Mercedes Benz not turn on?
A problem that Mercedes-Benz owners may face is the key no longer turns in the ignition. This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL).
Why is my Mercedes EZs EIS ignition not working?
The only issue here is that if you can’t turn on the ignition, you can’t power on the OBD2 port and the iCarsoft MB II scanner. If the ignition turns on intermittently, consider yourself lucky and scan for codes. Hopefully, there are fault codes that will point you to the problem. Diagnosing Mercedes ignition problems isn’t a simple DIY job.
What to do if you have an ignition switch problem?
If they come to the conclusion that the Ignition Switch (EIS-EZS) is the culprit you will be told that the switch will need to be replaced. This is an expensive repair that can cost several hundred dollars. You have a few options here. Have the dealer install a new ignition switch, and they will program it to match the VIN of your Mercedes-Benz.
How does a smart key work on an ignition switch?
As you insert the Smart Key remote into the Electronic Ignition Switch (EIS) control module (N73), power is supplied to the key by the induction coil ring located in the EIS. Data is then exchanged with the infrared transmitter to validate the Drive Authorization.
Why does the key not turn when inserted in the ignition?
The EIS module could also be the reason that the key does not turn when inserted in the ignition. Many car owners complain that the car starts fine on a warm or hot day but in cold days the car will not start. This may sound strange, but it is reported frequently.
The only issue here is that if you can’t turn on the ignition, you can’t power on the OBD2 port and the iCarsoft MB II scanner. If the ignition turns on intermittently, consider yourself lucky and scan for codes. Hopefully, there are fault codes that will point you to the problem. Diagnosing Mercedes ignition problems isn’t a simple DIY job.
Where can I buy a Mercedes brake light switch?
You can buy a new brake light switch on Amazon for less than $15 USD, just do a search for Mercedes-Benz Brake Light Switches. In the video below you will can see how easy it is to replace the brake light switch on a Mercedes-Benz E-Class.
What do I need to troubleshoot my Mercedes Benz?
Troubleshooting fuel related problems is not very difficult and you can check the fuel pressure yourself. Checking the fuel pressure is very simple. For this test, you will need a fuel pressure gauge. What you need is a fuel pressure gauge with Schrader valve adapter.
What to do if the key does not turn in the ignition?
If the key does not turn in the ignition, try moving the steering wheel as you try to turn the key. The steering wheel will feel completely solid if you try to move it in one direction and may move slightly in the opposite direction.
What are the symptoms of a bad ignition lock cylinder?
If the ignition lock cylinder wear out or breaks, it may prevent the vehicle from starting when the key is inserted and turned. 3. Issues inserting and removing the key. Issues with inserting and removing the key are another symptom of a potential problem with the ignition lock cylinder.
What happens if you wiggle the ignition key?
Be careful not to apply too much pressure. Wiggling the key can make the key contact the pins from a different angle, which may allow you start the vehicle. If wiggling the key works, it means the teeth on the key are too worn to properly engage the pins. Replace the key as soon as possible if this works before the key stops working entirely.
How can I get a new ignition key?
Depending on the vehicle, the dealership may be able to produce a new key using your vehicle’s VIN number. You will need to provide sufficient evidence of ownership of the vehicle. If a new key cannot be produced, you will need to purchase a new ignition module with matching key and have it installed.
What’s the name of the ignition lock cylinder?
The ignition lock cylinder is the cylindrical tumbler and key that is used to power on and start the vehicle. While many newer vehicles are now being manufactured with push button and keyless power and starting systems, traditional ignition lock cylinders are still commonly found on many road…
How do you lock the ignition switch on a Mercedes SLK?
Alternately, it can be pried off carefully using a small flatblade screwdriver. For reassembly, the ring’s clips (arrow) grab the slot in the dash panel directly under the key cylinder. The special Lock Cover Tool catches the key’s remote fob, causing the key to move with the tool.
How do you remove ignition switch lock cylinder?
Removing the cylinder is the recommended way to thoroughly clean it, as opposed to blasting brake cleaner into the dash panel. The removal process is fairly straightforward. The aluminum cylinder cover ring needs to be rotated a quarter turn counter-clockwise while the key is in the “1” (Accessory) position.
Can you change the cylinder on a Mercedes SLK 230?
A better method is with a purpose-specific Lock Cover Tool (Pelican Parts #BM-202-0014). Once the cover is released, the key and tumbler can be pulled out of the steering lock. The one drawback to ordering a new cylinder and key is that the trunk lock will still require the original key.
Do you need to re-cut the ignition key on a Mercedes?
Because newer Mercedes models also use laser-cut transponder keys, you may need to have your ignition key re-cut or reprogrammed depending on the model of Mercedes you have. The first step, of course, is to remove the old ignition switch.
Once the switch fails, you won’t be able to start your vehicle. Because newer Mercedes models also use laser-cut transponder keys, you may need to have your ignition key re-cut or reprogrammed depending on the model of Mercedes you have. The first step, of course, is to remove the old ignition switch.
Because newer Mercedes models also use laser-cut transponder keys, you may need to have your ignition key re-cut or reprogrammed depending on the model of Mercedes you have. The first step, of course, is to remove the old ignition switch. Adjust the Mercedes telescoping steering wheel to the maximum extended position (maximum out position).
Turn the ignition key to the “I” position and remove the electrical plug in the back of the ignition switch. The switch should be exposed now that the cowl and instrument cluster have been removed. You will access the plug from the top of the ignition switch and cylinder assembly.
Why does my car say ” remove key “?
The owner stated that there was a message in the cluster that stated “Remove Key”. We had a laugh due to the fact that we did not want to remove the key. We just wanted it to start. A vehicle scan revealed faults in the electronic ignition switch (EIS) stating that there was no communication from the electronic steering lock (ESL).