I could be something as simple as a vacuum line off. I had overheating issues on my 1991 190E and found a vacuum check valve broken. Look near the passenger side of the engine.
The oil pressure sensor on a 1991 Mercedes-Benz 190E is typically located on the engine block, near the oil filter. It's usually found on the rear side of the engine, close to the oil gallery. To access it, you may need to remove some components, depending on the specific engine configuration. Always consult the vehicle's service manual for precise location and removal instructions.
The 1991 Mercedes Benz 2.6 liter engine oil capacity is 4.5 quarts. The engine oil pan will hold 4.0 quarts and the oil filter will hold one half quart.
The motors are underneath the seats
No they will not.
Yes it does.
On a 1991 Mercedes 190E, the ignition or starter relay is typically located in the engine compartment, near the battery, on the driver's side. It may be found in a relay box or fuse box that contains various relays and fuses. To locate it more precisely, consult the vehicle's service manual or check for a diagram on the underside of the fuse box cover.
how remove cylinder head
I have a 1991 190e 4 cylinder with the same problem - in cold weather the engine does not warm up. I know that I have a head gasket leak due to oil in coolant. I changed the thermostat but no improvement. I suspect the head gasket leak somehow affects the working of the thermostat or circulation of the coolant.
The car company that produced the 190E model is Mercedes-Benz. This model was produced by Mercedes-Benz from 1982 through 1988 and again from 1991 through 1993.
I have now had the problem fixed, simply a bad connection under the dash. All is now fine.
To adjust the fuel mixture on a 1991 Mercedes 190E, locate the mixture adjustment screw on the airflow meter. Use a multimeter to measure the voltage output while the engine is running; ideally, it should be around 0.5 to 1.0 volts. Turn the screw clockwise to enrich the mixture or counterclockwise to lean it, making small adjustments and checking the voltage until the desired level is reached. Always ensure the engine is at operating temperature during this process for accurate results.