What are the Mercedes codes for vacuum leaks?
Other codes that you may get are P0130, P0135. If you clear the P0170 and P0173 without fixing the underlying problem those two codes will return in a couple of days. Under certain circumstances such as vacuum leaks, the car may run fine even if the CEL light is on and P0173/P0170 are present.
How to test a Mercedes W123 vacuum lock system?
Pull all three lines from the check valve and test it. Use your mouth to suck and blow in to the single connection side of the check valve. If you can suck AND blow, the valve is bad and will need to be replaced. If air will only travel one way, the valve is OK. Connect your hand vacuum gauge to the yellow line with the grey stripe.
Where does air leak in Mercedes Benz W210?
Just be sure to check all possible places air can leak in between the cylinders and the ICV. This also includes the oil dipstick O-ring, the oil filler cap, valve cover gasket, PCV valve and also the intake manifold gaskets. Sometimes, the process of eliminating all of the leaks can be quite frustrating.
Where is the vacuum line on a Mercedes Benz?
On the right (passenger) side of the engine, you have one vacuum line that runs from the exhaust gas re-circulation valve to the actuator solenoid on the front of the engine.
How to tell if your Mercedes W123 vacuum lock is leaking?
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. If it does not, the line is OK. Make note of the results and continue.
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.
Just be sure to check all possible places air can leak in between the cylinders and the ICV. This also includes the oil dipstick O-ring, the oil filler cap, valve cover gasket, PCV valve and also the intake manifold gaskets. Sometimes, the process of eliminating all of the leaks can be quite frustrating.
How can I lock my Mercedes W123 door?
Pull this line from the “Y” connector, attach your vacuum pump and draw a vacuum of 10 to 15Hg on this side of the system. If the rear driver’s side door is unlocked, doing this should lock it. Watch the gauge for a short time and look for vacuum leaking off.