You need to have the Data Trouble Codes scanned in order to determine this. Most auto parts stores have an OBD-1 compatible scanner, and will run the DTC scan at no cost to you. 99% certain it's going to be a transmission issue, whatever it is, which can range from a faulty sensor, faulty TCM relay, controller defect, loss of prime, etc.
Get the car to a Mercedes service. Thats the only way to fix it!
limp home mode is a fail safe mode on Mercedes vehicles which allows you to be able to drive a reasonable distance without necessarily damaging your engine. Most of the electronically operated parts driven by the MV belt can work on manual mode. while this is not ideal for performance it is meant to allow you to get the car to safety and a service station hence the phrase "limp home"
Most VW's only go into limp mode if there is a very serious problem. Limp mode is there to protect the engine, not to be an inconvenience. To disable limp mode would be to allow the engine to self destruct.
ecu can come on with a leaky injector chek for leaks if at the 90,000+ mark.
Limp mode or (limp-in mode or limp-home mode)occurs when your computer in your car is not communicating with the sensors on your engine. On some cars(volkswagon Passat for example) If you disconnect the battery then the computer will lose all of the settings and will go into limp-in mode. The car will have little power and a top speed of only about 30 miles per hour. The function of limp-in mode is to get you to a place that can repair the car but the car is barely driveable.
You have to repair the cause of the code that put it in limp mode.
is limp mode is when you put the car on donks or on 3 wheels using hydrolics
You have to fix the problem that caused the trouble codes that put it in limp mode.
fix the problom that put it in limp home mode then reset the computer
enables limp home without damaging the engine.
You have to repair the malfunction that is setting the code that has put the computer in limp mode.
The computer won't release it from limp in mode until the underlying problem is fixed and the trouble code cleared.