What makes a Mercedes Benz vacuum go one way?
3) Switch over valve – this changes the timing of the engine based on whether the AC compressor is running or not. 4) EGR Valve – part of the emissions controls. 5) Check Valve – this keeps vacuum going one way. These fail and cause all kind of wierdness.
What causes a vacuum leak in a Mercedes 107?
Vacuum leaks in this engine cause stumbling idle, weak power, bad gas mileage and – worst case scenario – burned valves due to extremely lean running conditions. Making sure the vacuum is in order should probably be your first priority when you get a 107. Outstanding Contributor , Bob’s Your Uncle!
What is the vacuum diagram for a Mercedes 450SL?
OK, so this is the vacuum diagram to a 1978-1980 450SL with the K-Jet system. Click the picture to see it full size. 3) Switch over valve – this changes the timing of the engine based on whether the AC compressor is running or not. 4) EGR Valve – part of the emissions controls.
How to troubleshoot your Mercedes medic air conditioner?
Turn the A/C ON. If you have an Economy button make sure that is off. Make sure fan is on HIGH, temperature selector is turned all the way to COLD, and that the A/C and recirculate light indicators are on. Set the temperature to cold, the lowest setting. Set the cooling fans on high on the climate control.
How do you run a vacuum in a Mercedes Benz?
Once vacuum supply has been established, you can shut the engine down, release the vacuum on your pump, and return the supply line to the manifold. Now you will pull each hose off the side one by one and use the handheld pump to draw a vacuum down each hose.
What kind of air conditioner does a Mercedes Benz use?
Mercedes-Benz switched to R-134a in the early 1990s. Look under the hood to see what refrigerant your air conditioner system uses. If you have an older Mercedes-Benz you may need to use R-12 which you can also find online here. My gauge doesn’t have temperature gauge for outside temperature.
How much does it cost to diagnose Mercedes A / C system?
A Mercedes-Benz specialized shop may charge you between $100-$150 to diagnose your A/C system. Ensure the system is sealed and not leaking. Ensure the system does not have any moisture or air in it. An A/C vacuum pump is needed to achieving this. Ensure the compressor is operating correctly.
Why is the air conditioner on my Mercedes not working?
The hot summer days are here and you realize that the air conditioner on your Mercedes-Benz is no longer blowing cold air. A/C problems can be complicated but it also can be something as simple as the system being low on freon. This is usually one of the most common problems.
How to disassemble a Mercedes W210 heater control valve?
Press the metal tabs on the housing back inside (green arrows). This prepares the housing to accept the new Duovalve. Shown here are the catches on the Duovalve (green arrows). These slide over the catches in the housing, locking it in place. Now take the new Duovalve and press it down into the housing until both sides click into place.
3) Switch over valve – this changes the timing of the engine based on whether the AC compressor is running or not. 4) EGR Valve – part of the emissions controls. 5) Check Valve – this keeps vacuum going one way. These fail and cause all kind of wierdness.
Vacuum leaks in this engine cause stumbling idle, weak power, bad gas mileage and – worst case scenario – burned valves due to extremely lean running conditions. Making sure the vacuum is in order should probably be your first priority when you get a 107. Outstanding Contributor , Bob’s Your Uncle!
OK, so this is the vacuum diagram to a 1978-1980 450SL with the K-Jet system. Click the picture to see it full size. 3) Switch over valve – this changes the timing of the engine based on whether the AC compressor is running or not. 4) EGR Valve – part of the emissions controls.
What are the emissions controls on a Mercedes Benz?
4) EGR Valve – part of the emissions controls. 5) Check Valve – this keeps vacuum going one way. These fail and cause all kind of wierdness. Easy to check with a hand vacuum pump and inexpensive to replace. 6) Charcoal Canister – more of the emissions controls.
Are there any problems with my 107 vacuum?
It is only through the kindness of other 107 owners that vacuum problems seem to be resolved. With that being said, why not try to pool our vacuum resources into one thread. Each post titled with the appropriate section followed by a scanned, hand drawn or pdf drawing or photos.
How to troubleshoot Mercedes Benz air suspension problems?
Learn how to troubleshoot Mercedes-Benz Air Suspension Problems. You decide to buy a Mercedes-Benz, maybe an S-Class, CLS-Class, R-Class, CL-Class or E-Class. One day you hear of other Mercedes-Benz owners having suspension problems. The next day you start having air suspension problems yourself.