Changing Cam Magnets in Mercedes-Benz Engines: A Step-by-Step Guide

As we begin this tutorial, I'll be working with a cam magnet from Mercedes-Benz, specifically designed to change variable valve timing. The cam magnet is located underneath the engine and sits in front of each cam shaft. Over time, these magnets can leak out of their plastic casing and start to leak into the front of the engine. In this article, we'll take a closer look at how to replace a faulty cam magnet on a 2005 C230 compressor.

The first step is to remove the intake manifold to access the cam magnet. I'm putting my gloves on now to protect myself from any potential scratches or cuts. The cam magnet is part number 27105 10177, and it's essential to use this specific part to ensure a proper fit and function. The engine has approximately 81,000 miles on it, which means that the cam magnet may have leaked out over time.

To begin the replacement process, I'll pop out the cam magnet by unscrewing three screws. These screws are reverse-torque, so I'm using an E8 socket to remove them. It's essential to handle these small bolts with care and put them in a magnetic dish or other safe location to prevent loss. As I remove the screws, I can see that the cam magnet is positioned near a gasket and an O-ring, which seal behind it.

The O-ring is about $7 and was purchased from Mercedes-Benz. It's crucial to ensure that this part number matches the one specified on the replacement cam magnet. The rubber grommet inside the cam magnet is also replaced with a new one, just in case there were any leaks or issues with the old one. Now that I've removed the screws, I can gently pry out the old O-ring using my hook.

Once the old O-ring is removed, I'll put the new one in place and make sure it's securely seated. Next, I'll reattach the cam magnet to the engine and tighten the three screws using an E8 socket. The torque specification for these bolts is about 8-9 Newtons, which means you can snug them down by hand without needing any special tools.

Now that the new O-ring is in place, I'll make sure to clean up any excess oil from the area and plug the electrical connector back into its rightful spot. It's essential to ensure that there are no loose wires or connections that could cause issues with the engine. Finally, I'll start the car and check for any leaks, which should be minimal at this point.

In conclusion, replacing a faulty cam magnet on a Mercedes-Benz engine is a relatively straightforward process that requires some basic tools and knowledge. By following these steps and using the correct parts, you can ensure a proper fit and function of your engine's cam magnet, reducing the risk of leaks or other issues down the road.

"WEBVTTKind: captionsLanguage: enhi everyone Aron here for zolot and we're going to change the cam magnet this is part number 27105 10177 and this is a cam magnet from Mercedes-Benz and it changes the variable valve timing and what happens is over time they leak out of this plastic here and start to leak out of the front of the engine now this engine has about 81,000 M on it and these sit underneath here there's one in front of each cam shaft you also have a rubber grommet that goes in here and an O-ring that seals behind here so we'll go ahead and put my gloves on pop this out and get ready so you can see the cam magnets and this is just the intake I'm going to take this out of the way to make this a little bit easier so I don't drop any of the screws but there's just three screws and an electrical clip this car actually has the retrofit so this probably leaked at sometime but this is a 2005 C230 compressor and these go up now they used to go down and you would get oil leaking out and through and get into your ECU so that's been changed so we first want to uncp that we're going to uncp this it just comes off pretty simply like that and we're going to unscrew the three bolts now these are reverse torqus and we're going to use an E8 socket to get this off you'll see these are very small bolts so just take care of them and put them in a magnetic dish or whatever you might have here's the part and you can see it's it's kind of oily the back just sits here like this right up flush against this gasket or o-ring here and this o-ring is about $7 I got it from mercedesbenz and then there's a little rubber grommet that's about $2 inside there we'll not transfer this one we'll put a new one in there just to be safe also inside here is where it leaks right under here and right down the harness so that's where mine's leaking I've got my hook I got behind this and just gently pry out the old o-ring I've put the new o-ring in and now I've put the new grommet here in the center you just push it real hard into the into the center and we should be good to put this into place now that I've got all three bolts worked down I'm just going to Snug them down to about 8 to 9 Newton M of torque so it's not very much you can basically just snug this with your hands now that we have all the three bolts snug down I'll just clean up any excess oil and then plug it back in now on this one you can see where it's been leaking over time so I'm going to clean that up nicely and not get anything in the cam shaft area or the timing cover and just make sure it's nice and clean before I put it back together one thing I didn't mention earlier is I check the part numbers on both to make sure they match now I've cleaned up the bolts and I'm going to put this on and apply even pressure as I snug these down when I tighten these I use a technique where I hold up near here so that it don't overtighten now that they're all snug I'm just going to plug the electrical connector back in now that I'm done putting these back on I'm going to start the car and look for any leaks so everything's looking good as far as the oil and I don't see any leaks I'll check it again in a few days to see if it's leaked at all but it should be good at least for another 60,000 hopefully 100 to 200,000 mil so hopefully that helped you as far as changing the cam magnets if you have any other questions or comments let us know in the comments below if you haven't subscribed already please subscribe and like as always thanks for for watching this is Aaron I'll see you next timehi everyone Aron here for zolot and we're going to change the cam magnet this is part number 27105 10177 and this is a cam magnet from Mercedes-Benz and it changes the variable valve timing and what happens is over time they leak out of this plastic here and start to leak out of the front of the engine now this engine has about 81,000 M on it and these sit underneath here there's one in front of each cam shaft you also have a rubber grommet that goes in here and an O-ring that seals behind here so we'll go ahead and put my gloves on pop this out and get ready so you can see the cam magnets and this is just the intake I'm going to take this out of the way to make this a little bit easier so I don't drop any of the screws but there's just three screws and an electrical clip this car actually has the retrofit so this probably leaked at sometime but this is a 2005 C230 compressor and these go up now they used to go down and you would get oil leaking out and through and get into your ECU so that's been changed so we first want to uncp that we're going to uncp this it just comes off pretty simply like that and we're going to unscrew the three bolts now these are reverse torqus and we're going to use an E8 socket to get this off you'll see these are very small bolts so just take care of them and put them in a magnetic dish or whatever you might have here's the part and you can see it's it's kind of oily the back just sits here like this right up flush against this gasket or o-ring here and this o-ring is about $7 I got it from mercedesbenz and then there's a little rubber grommet that's about $2 inside there we'll not transfer this one we'll put a new one in there just to be safe also inside here is where it leaks right under here and right down the harness so that's where mine's leaking I've got my hook I got behind this and just gently pry out the old o-ring I've put the new o-ring in and now I've put the new grommet here in the center you just push it real hard into the into the center and we should be good to put this into place now that I've got all three bolts worked down I'm just going to Snug them down to about 8 to 9 Newton M of torque so it's not very much you can basically just snug this with your hands now that we have all the three bolts snug down I'll just clean up any excess oil and then plug it back in now on this one you can see where it's been leaking over time so I'm going to clean that up nicely and not get anything in the cam shaft area or the timing cover and just make sure it's nice and clean before I put it back together one thing I didn't mention earlier is I check the part numbers on both to make sure they match now I've cleaned up the bolts and I'm going to put this on and apply even pressure as I snug these down when I tighten these I use a technique where I hold up near here so that it don't overtighten now that they're all snug I'm just going to plug the electrical connector back in now that I'm done putting these back on I'm going to start the car and look for any leaks so everything's looking good as far as the oil and I don't see any leaks I'll check it again in a few days to see if it's leaked at all but it should be good at least for another 60,000 hopefully 100 to 200,000 mil so hopefully that helped you as far as changing the cam magnets if you have any other questions or comments let us know in the comments below if you haven't subscribed already please subscribe and like as always thanks for for watching this is Aaron I'll see you next time\n"