Mercedes is a good company and the answer to you're queston is NO.
To replace the heater core in a 1993 Mercedes-Benz 190E, first disconnect the battery and drain the coolant. Then, remove the dashboard and any components obstructing access to the heater core, including the center console and HVAC controls. Disconnect the hoses from the heater core, remove the mounting screws, and carefully extract the old heater core. Install the new heater core by reversing the process, ensuring all connections are secure before reassembling the dashboard and refilling the coolant.
If the heater in your 1993 Mercedes 190E is not working, first check the coolant level, as low coolant can prevent proper heating. Next, inspect the thermostat and heater core for any blockages or leaks. Additionally, examine the heater control valve and the dashboard controls to ensure they are functioning correctly. If these components are in good condition, it may be necessary to consult a professional mechanic for a more in-depth diagnosis.
Disconnect the send and return lines from the heater core and use a hose coupling and hose clamps to connect these two lines together
it is probably the heater control valve see my tutorial on this at http://www.benzworld.org/forums/w201-190e-d-class/1358590-troubleshooting-mercedes-benz-190-e-d-210-tempmatic-climate-control-system.html#post2716281
The heater fan on a 1985 Mercedes 190E is typically located under the dashboard on the passenger side of the vehicle. To access it, you may need to remove the passenger-side footwell panel. The fan is part of the heating and ventilation system, which also connects to the climate control unit. Make sure to disconnect the battery before performing any maintenance to avoid electrical issues.
How do you remove a radio from a 190E?
There are two possibilities. Its either on the overhead console by the rear view mirror or on the center dash control switches below the heater vents.
It sounds like you have no coolant flow through the heater core or the core is plugged
Sounds like low coolant or air in the cooling system
If you look on the backside of the climate control unit in the dash you will find a glass buss style fuse. It will be blown. Replace the fuse and your fan will stay on with your headlights.
A Mercedes 190e doesn't have a carburetor. They are fuel injected.
I heard that you can take the temperature control wheel out and reheat the solder points around the dial. I have the same problem on an '87 190e. I'm still trying to figure out how to take the console out to get to the temp wheel. You have a vacuum leak. Or possibly a bad heater valve. Open the hood, remove the leaf tray, and locate it on on the passenger side. It has a red vacuum hose sticking in the top of it. Check it for water leaks, and check it for vacuum leaks using a Mityvac or some other vacuum tester. When vacuum is applied, the valve is closed, blocking hot water to the core. If the valve checks out, put the tester on the red vacuum line and see if vacuum is present in the pipe. If not, then you have a problem elsewhere and the valve is fine. Possibly a vacuum leak as indicated above. JC.