2003 c230 k 1.8L serpentine tension idler pulley mounting bolt snapped, help
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2003 mercedes benz c230 coupe
2003 c230 k 1.8L serpentine tension pulley mounting bolt snapped, help
Hi fellow MB'ers,
Hope you can help me with my problem. I have a 2003 c230 K coupe (w203) with a 1.8L supercharged 4 cylinder engine. Yesterday my serpentine belt broke and after closer inspection i noticed the tension pulley was loose in it's engine block socket, I then wiggled it out only to find that the mounting bolt snapped that holds it in place from behind. Its a weird design, there are no bolts holding it from the outer housing, only a bolt that is screwed in from behind. My question is, how do you put a new mounting bolt on from the back of this thing? Does the disk inside the socket come out somehow? Please help.
Thanks
Hope you can help me with my problem. I have a 2003 c230 K coupe (w203) with a 1.8L supercharged 4 cylinder engine. Yesterday my serpentine belt broke and after closer inspection i noticed the tension pulley was loose in it's engine block socket, I then wiggled it out only to find that the mounting bolt snapped that holds it in place from behind. Its a weird design, there are no bolts holding it from the outer housing, only a bolt that is screwed in from behind. My question is, how do you put a new mounting bolt on from the back of this thing? Does the disk inside the socket come out somehow? Please help.
Thanks
Last edited by jamiec230; Jul 15, 2017 at 12:10 PM.
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From: New England! :-)
2005 C230K Sport Coupe
I'm not sure what you're talking about, nor asking.
Don't you have a cell phone or a camera?
https://mbworld.org/forums/c-class-w...placement.html
https://mbworld.org/forums/c-class-w...er-pulley.html
https://www.google.com/search?q=M271+tensioner
Mercedes Benz C230 (M271) Tensioner Pulley Replacement
.
Don't you have a cell phone or a camera?
https://mbworld.org/forums/c-class-w...placement.html
https://mbworld.org/forums/c-class-w...er-pulley.html
https://www.google.com/search?q=M271+tensioner
.
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2003 mercedes benz c230 coupe
Thanks for the links RedGrey...in the video you posted he explains exactly what I mean. I now know thanks to you.
At 18 sec's - 40's he states that if you need to replace the whole tensioner, NOT just the pulley, the bolt is only accessible through the back and in order to do that you need to remove the intake manifold and supercharger to get to the bolt through the timing case, crap I was hoping it was a small job, but now I see its a big job. Darn.
Thanks again!
At 18 sec's - 40's he states that if you need to replace the whole tensioner, NOT just the pulley, the bolt is only accessible through the back and in order to do that you need to remove the intake manifold and supercharger to get to the bolt through the timing case, crap I was hoping it was a small job, but now I see its a big job. Darn.
Thanks again!
Last edited by jamiec230; Jul 16, 2017 at 11:40 AM.
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2003 mercedes benz c230 coupe
As a follow up, to those who own a c230 k with a M271 engine. Maybe a good idea to change your serpentine belt and the 2 pulleys as preventative maintenance and piece of mind. I think my pulley seized up from a worn out bearing which put strain on the tensioner and then snapped the bolt, leaving me stranded, and with a hell of a job ahead of me, good thing it was not on the highway. I lost all power options including my power steering.
Note: if you do it yourself, make sure you put the right torque when you tighten the bolts...I'm researching the correct torque and will do a follow up when I find out...
Note: if you do it yourself, make sure you put the right torque when you tighten the bolts...I'm researching the correct torque and will do a follow up when I find out...
Last edited by jamiec230; Jul 17, 2017 at 10:38 AM.
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c230 Kompressor
Hey Jamie, Funny that you posted that question because I have the same problem but I already removed the intake manifold and everything above and the only thing left is the supercharger at this point but after removing the 2 bolts on the front by the supercharger pulley I don't know what else its holding it in place specially since everything above its gone.
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S203
Hey Jamie, Funny that you posted that question because I have the same problem but I already removed the intake manifold and everything above and the only thing left is the supercharger at this point but after removing the 2 bolts on the front by the supercharger pulley I don't know what else its holding it in place specially since everything above its gone.
when you're done:
the 3 bolts holding the supercharger 20Nm
intake muffler bolt to oil filter housing 11 Nm
intake muffler bolt to supercharger 9 Nm
oh and since you will remove the supercharger you better replace the 3 breather hoses and the one-way valve
Last edited by playfair; Jul 27, 2017 at 05:00 AM.
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c230 Kompressor
Huh??
OMG! I guess it's time to take a few days vacations because I'm about to rip my hair off ! That sounds bad! I appreciate the detail response and I'm in some sort of panic mode at this point after your explanation. :/
Thanks for the torque specs.
Thanks for the torque specs.
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2003 mercedes benz c230 coupe
