How does the anti theft alarm work on a Mercedes Benz?
The anti-theft alarm system (ATA) (with code (551a) anti-theft alarm system (ATA) is not deactivated. Lock/unlock vehicle doors, trunk lid, tailgate. By pressing the buttons (lock, unlock, trunk) a two-way radio and an infrared signal is transmitted by the remote key.
What should I do if my Mercedes remote key is not working?
If you have a new remote key and notice the LED is not illuminating when locking and unlocking the vehicle, the remote key needs to be inserted into the vehicle EIS and used to activate LED function. Remember your car may have been serviced before and parts replaced with different size fasteners used in the replacement.
When did the Mercedes Drive authorization system come out?
Drive Authorization System (DAS) is the Mercedes Immobilizer system which checks drive authorization every time you insert the key into the ignition and try to start the car. DAS was introduced back in 1996 and has had several security improvements. The main DAS versions DAS are DAS 2, 2A, X, 3.
What kind of key does a Mercedes Benz use?
While most Mercedes-Benz cars have the SmartKey some models such as the ML Class, SLK Class, Crossfire used a metal blade key up to 2005. Some models suffer from the defective key tumbler. We have seen cars with as little as 20,000 miles where the tumbler go bad. Make sure the steering wheel is not in a locked position as mentioned above.
Drive Authorization System (DAS) is the Mercedes Immobilizer system which checks drive authorization every time you insert the key into the ignition and try to start the car. DAS was introduced back in 1996 and has had several security improvements. The main DAS versions DAS are DAS 2, 2A, X, 3.
While most Mercedes-Benz cars have the SmartKey some models such as the ML Class, SLK Class, Crossfire used a metal blade key up to 2005. Some models suffer from the defective key tumbler. We have seen cars with as little as 20,000 miles where the tumbler go bad. Make sure the steering wheel is not in a locked position as mentioned above.
Where is the level sensor on Mercedes Benz air suspension?
If you need help with troubleshooting the airmatic valve assembly watch this video. Level sensor is faulty They are located at the rear and front suspension. When they stop working the air suspension control unit may no longer be able to recognize the height of the car.
What to do if your Mercedes key won’t turn?
If you have this problem you will have to install a new / virgin EIS. You can not install a used unit because the EIS has to be paired / married to the car using Mercedes-Benz Star Diagnostic Software. They key itself may be the reason why the car doesn’t start. The key may open the doors, but it will not start the car.