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190E

Hi there. This problem is caused by a lack of mobility in your ignition cylinder. The bumps on your key depress a series of channels in the cylinder in the correct combination in order for it to release it's locking...

Your car uses the old Bosch KE injection system. It is a mechanical, electronic combination system that has the unique ability to run (though not very well) with the electronics not working at all, You might find that the section...

Hey there. Your 190E holds 5.3 quarts or 5 liters. The weight of oil is determined by the average temperature (https://www.yourmechanic.com/article/do-i-need-to-change-my-motor-oil-for-hot-or-cold-weather) of the climate you live in. If the temperature is above 70 degrees Fahrenheit, I would go with the...

Confirm the basics first: Does it have spark at the plugs (https://www.yourmechanic.com/services/spark-plugs-replacement)? Does it have compression? Are the injectors (https://www.yourmechanic.com/services/fuel-injector-replacement) firing with proper fuel pressure? One (or more) of these is failing you, and will instruct the correct diagnostic path....

The car sitting for a year is most likely a dead battery. These cars are known to have loss of memory problems and the systems have to be reset with a factory scanner. I recommend you have a mechanic like...

Thanks for asking. With all of the work that has been done to the vehicle, I would recommend having a mechanic, such as one of our YourMechanic experts, inspect your starting issue (https://www.yourmechanic.com/services/car-is-hard-to-start-inspection). Your symptoms sound like an air/fuel metering...

Hello, thank you for writing in. The vehicle's battery will likely be dead. Even if the vehicle has less electronic components sucking battery power, there are some. Even when the vehicle is off and sits, the clock can drain the...

You probably broke a throttle cable. It's just a short cable that goes from the accelerator to a complicated looking linkage on the intake manifold. This isn't a common failure so you may want to look hard at the linkage...

If removing the driver door window switch (https://www.yourmechanic.com/services/power-window-switch-replacement) (or the driver-side console switch), and applying direct power to the harness yields successful operation of the window, the problem is the switch that was removed for the test. This can be...

Given you had a "sudden" failure, you might check the crank position sensor first. This component instructs the ignition module when to fire the spark plugs. If the crank position sensor is OK, work your way up the electrical path....

Hi. Your cooling and oil systems would need to be checked for leaks. These are two separate issues. The cooling system should not be getting low, except for a very small amount over a six to twelve month period. The...