How to diagnose a Mercedes Benz vacuum lock?
Begin by removing the floor mat, if equipped, and carpet in the driver’s foot well. With the carpets removed, look along the end of the foot well nearest the driver’s door and find the black plastic cover that protects the vacuum lines beneath. Lift this cover up as shown to expose the vacuum lines.
What kind of engine does a 280E have?
Engine size was designated by its displacement in liters. So a 280E has a 2.8 liter inline-6 cylinder engine. Fuel type was indicated by the trailing letter after the number. “D” stands for diesel. “E” stands for Einspritzung, which refers to fuel-injection on the gas engines. If there is no “E” or “D” then it is a carbureted gas engine.
Where is the vacuum tank in a Mercedes?
Vacuum tank is pictured, in trunk, under hat shelf. Move your vacuum pump to the yellow solid line with no stripes for the next step. With your hand vacuum pump connected to the solid yellow line, with no stripes, you can continue. Make sure the driver’s side door is closed, and turn the key to the lock position.
Is the door lock system on a Mercedes W123 controlled by vacuum?
The door lock system on a W123 is controlled entirely by vacuum. It is a system made of many parts and can be complicated to diagnose properly if you’ve never done it before, and especially if the system has been left to deteriorate for some time. The first step to fixing the system is to properly diagnose it.
Begin by removing the floor mat, if equipped, and carpet in the driver’s foot well. With the carpets removed, look along the end of the foot well nearest the driver’s door and find the black plastic cover that protects the vacuum lines beneath. Lift this cover up as shown to expose the vacuum lines.
Vacuum tank is pictured, in trunk, under hat shelf. Move your vacuum pump to the yellow solid line with no stripes for the next step. With your hand vacuum pump connected to the solid yellow line, with no stripes, you can continue. Make sure the driver’s side door is closed, and turn the key to the lock position.
The door lock system on a W123 is controlled entirely by vacuum. It is a system made of many parts and can be complicated to diagnose properly if you’ve never done it before, and especially if the system has been left to deteriorate for some time. The first step to fixing the system is to properly diagnose it.
How can I tell if my vacuum line is cracked?
Connect your vacuum gauge to the line just disconnected from the first “Y” 3-way connector inside the car. Pump a vacuum of 10 to 15Hg. If this line shows a leak, it means this line is cracked, likely where it passes between the body of the car and the door.