Can a mechanic replace an alternator on a Mercedes Benz?
An experienced mechanic should be able to replace the alternator in even an hour. Even Valeo or Bosch alternators with are the Original Equipment installed on the Mercedes Benz cars, can be bought for a fraction of what the dealer charges.
Where is the alternator on a Mercedes Benz E CLK?
Applies to C Class , E Class, CLK Class and many other models with the V6 M112 and V8 M113 engine. Open the hood. Disconnect the NEGATIVE terminal from the battery. HINTS: Locating the battery. Depending if you have a C / E / CLK class it could be either in the engine bay compartment, under the rear seats, or in the trunk.
What kind of Fuse is on a Mercedes Benz W221?
P32/4 Fuse 38 is a 5-ampere fuse, for the additional auxiliary battery G1/7, EZS control unit N73, and Front SAM control unit. Fuse Style used on the Mercedes-Benz S Class W221. Standard blade fuses are used in the S-Class. Printed fuse charts that come with the car.
What kind of engine does the Mercedes W221 have?
The design of the W221 is often described as more forward than previous generations and is similar to that of the Mercedes-Benz Maybach sedan. It was available with a V6, V8 or V12 engine producing up to 510 hp in the highest trim S 600.
When to replace alternator in Mercedes Benz E class?
It might be time to replace the alternator in your Mercedes-Benz E-Class. This article applies to the Mercedes-Benz E-Class (2002-2009). All vehicles are equipped with an alternator.
P32/4 Fuse 38 is a 5-ampere fuse, for the additional auxiliary battery G1/7, EZS control unit N73, and Front SAM control unit. Fuse Style used on the Mercedes-Benz S Class W221. Standard blade fuses are used in the S-Class. Printed fuse charts that come with the car.
What do you need to know about the Mercedes W221?
Water Pumps, Radiators, Thermostats, Antifreeze, Radiator Hoses, Tanks and Parts more… The Mercedes-Benz W221 S-Class is the fifth generation of the full-size luxury sedans produced from 2006 to 2013. The design of the W221 is often described as more forward than previous generations and is similar to that of the Mercedes-Benz Maybach sedan.
How do you replace an alternator on a car?
Unplug the alternator’s wire. Now that the old alternator is out, it can be replaced. Tighten down 13mm nut and replace cap. Plug harness back in. Orient alternator onto mounting bracket. Insert long bolt through hose bracket first. Re-install second bolt and tighten both down.
How do you unplug an alternator from a car?
Orient the alternator on its side. Remove 13mm nut with socket or wrench after removing plastic cap. Press the clip and pull the plug straight out to disconnect the harness. Figure 5. Unplug the alternator’s wire.
How are the bolts holding an alternator in place?
The alternator is held onto a bracket via two long bolts. They will need to be removed prior to removing the alternator as a unit. Use 11mm socket to remove bolts. Figure 3. Remove the bolts holding the alternator in place. The lower bolt may be better removed using an extension.
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.
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.
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.
How long does an alternator last in a car?
It is designed to last for at least 60,000 miles. 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.
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.
Why does my Mercedes Benz alternator keep failing?
The alternator charges the battery and provides your car with a constant source of electricity while the engine is running. Over time, the alternator will begin to fail and cause trouble with the various electrical devices in the car.
How much does it cost to replace an alternator on a Mercedes Benz?
Replacing the alternator at the dealer can cost you over $1000 but if you do it yourself, you can do it for as little as $90, so keep on reading. It’s not a complicated job and we know you can do it.
Applies to C Class , E Class, CLK Class and many other models with the V6 M112 and V8 M113 engine. Open the hood. Disconnect the NEGATIVE terminal from the battery. HINTS: Locating the battery. Depending if you have a C / E / CLK class it could be either in the engine bay compartment, under the rear seats, or in the trunk.
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.
What should I do Before I replace my alternator?
Before you replace the alternator make sure that your battery is not the problem. One thing you can do to troubleshoot your car is to go to Advance Auto Parts or AutoZone and have them do a FREE alternator / battery check. This test may be able to point you in the right direction. 3. Secondary Battery / Auxiliary Battery.
Is it OK to change the battery in a Mercedes Benz?
You will be ok to drive the car, but replace the battery as soon as you can before it is not going to last very long. Mercedes uses battery group 49 and you want to save some $$$ you can get a AGM battery which is what the dealer uses for less on Amazon. Here is a highly rated battery on Amazon that will fit Mercedes Benz cars. 2.
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 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.
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.