How do you replace an alternator on a Mercedes Benz?
Release tension on the alternator belt. Turn the center tension pulley clockwise with a socket wrench. This will create slack in the belt. Slide the belt off the alternator. You will need to remove the belt from all of the other components on the system as well. Remove the electrical connector on the back of the alternator.
What happens to the battery when the alternator dies?
When the alternator dies, the first sign is the battery light illuminating on the dash. When the battery light illuminates, it is, ironically, usually not just the battery. Since the alternator charges the battery, when the alternator dies, the battery starts to draw down to feed the electrical components. This draw, in turn, kills the battery.
How do you remove a belt from an alternator?
Release tension on the alternator belt. Turn the center tension pulley clockwise with a socket wrench. This will create slack in the belt. Slide the belt off the alternator. You will need to remove the belt from all of the other components on the system as well.
Release tension on the alternator belt. Turn the center tension pulley clockwise with a socket wrench. This will create slack in the belt. Slide the belt off the alternator. You will need to remove the belt from all of the other components on the system as well. Remove the electrical connector on the back of the alternator.
What to do if your alternator goes out?
The first thing to check is the battery light on the instrument cluster. This light bulb is part of the alternator field circuit; if it burns out the alternator will not charge. Simply turn the key on and see if it illuminates briefly then goes off. If the light does not illuminate, you’ll need to replace it before continuing.
How to replace timing chain tensioner on Mercedes Benz W203?
If you do not have a retaining pin you can use a 5mm Allen key. The alternator is held to the engine by two bolts. Use an E14 Torx and remove the two bolts. There is a spacer that is pressed in the mount that you may or may not have to press out a little to get the new alternator installed.
How to replace a Mercedes Benz air filter?
You will need to remove the two air inlet ducts (red arrows) as well as the front engine cover (yellow arrow) to get access to the air filter housing on top of the engine. Remove each duct by compressing them towards the engine (red arrow) and slipping them off the air inlet. With the ducts off remove the front engine cover.
How do you remove an alternator on a Mercedes Benz?
Unplug the connector that goes into the back of the alternator. Pres on the tab and pull it away from the alternator. Remove the two bolts that hold the alternator in place using the Female E Torx sockets we listed on the required tools section above. Remove the alternator. It won’t be easy to remove it but you can do it.
How to replace alternator on Mercedes Benz E C CLK SLK s?
Tighten the nut for the electrical cable ( positive +) between 15-18Nm. Plug the electrical cable on the back of alternator and make sure it clicks when you push it in. That way you know it is locked in place. Reinstall the serpentine belt, the engine cover and the reconnect the battery. 2 Bolts that hold the alternator in place. Max 45 Nm.
Where is the battery located on a Mercedes Benz W203?
In our case we are working on a C Class W203 2001-2007 and the battery is located in the engine bay. First we need to remove the cabin air filter housing. Push up the 3 clips shown in the picture below and pull out the housing.