Changing The Drive Belt Tensioner On A Mercedes C250 1.8l Turbo Engine

Brian Eslick from How to Automotive www.howtoautomotive.com/ walks you step-by-step through the process of replacing the serpentine belt and tensioner on a Mercedes C250 with the 1.8L turbo engine.
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Owing to factors beyond the control of How to Automotive/Brian Eslick, it cannot guarantee against unauthorized modification of this information, or improper use of this information. How to Automotive/Brian Eslick assumes no liability for property damage or injury incurred as a result of any information contained in this video. How to Automotive/Brian Eslick recommends safe practice when working with power tools, automotive lifts, lifting tools, jacks and jack stands, electrical equipment, blunt instruments, chemical lubricants, or any other tools or equipment seen or implied in this video. Because of factors beyond the control of How to Automotive/Brian Eslick, no information contained in this video shall express or imply warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or information contained in this video is the sole responsibility of the user and not How to Automotive/Brain Eslick. #howtoautomotive

[@19lol19]

Thanks you're the only one out of thousands who showed how a bad pulley looked while on car

[@meazz1]

Best video to date for W204 C250, my engine, I found. Thanks

[@MotivxTools]

I had to figure out how to swap the tensioner on my '05 Saturn Vue while on a road trip - YT video was a huge help with the install. Hopefully this helps Mercedes owners and techs - keep up the great work!

[@HowtoAutomotive]

Motivx Tools I hope it helps somebody out too. Thank you for watching keep making those great tools👍

[@sunjoomoontube]

Brian, thank you for your time and expertise.

[@davidnguyen5028]

Great video. Very informative. I changed all the pulleys on our 08 GL 450 since they were making noises. But now there is a pulsating humming noises when the car idle. I made sure the belt was the same length.

[@yonosotros8]

Very professionally made video. Than’ you so much for sharing!

[@Epic_YouTube_Channel]

Great video! Perfectly detailed and great pointers.

[@ranct1815]

Thanks Brain for the informative and detailed explanation ... 👨‍🔧

[@HowtoAutomotive]

RANCT1 Thank you for watching!

[@glhansenjr]

great video, thank you, Brian

[@abdullahalghamdi6977]

Great video . detailed information very useful thanks Brian .

[@brucestewart1751]

Thank you. Complete , clear communication

[@Actyondriver]

Thank You from Germany 🫶

[@johnlarsen9651]

Excellent Video! Great narration and clearly explained the process... Well done!

[@HowtoAutomotive]

Thank you and thank you for watching!

[@jonclough6344]

Thank you very much, been searching for tool size everywhere👍

[@HowtoAutomotive]

Thank you for watching!

[@thenanook]

Excellent video!!!!

[@evanepp]

Brian, Great video! Thank you!

[@HowtoAutomotive]

Evan Epp thank you!

[@PaulyD0859]

I like that they made it possible to lock the tensioner while changing the belt. In regards to how the tensioner is mounted, there are a lot worse.

[@HowtoAutomotive]

Pauly D I agree I have seen worst. Thank you for watching!

[@nickcalderone75]

Great video!!! Very detailed!

[@HowtoAutomotive]

Thank you!

[@luigigonzalez5062]

Thanks for passing the info, very useful 👍

[@HowtoAutomotive]

Luigi Gonzalez thank you for watching it!

[@2angelchannel152]

Thank you very much Brian now I've an idea how to replace my r171 SLK 200 tensioner pulley too.

[@fratyo]

Thank you for the video. It helps a lot. For me wasn't possible to reach the bolt from behind. I just need thinner arm and couple joints more I guess. I reached the bolt from a side. Removed left tyre and then AC Compressor. It is attached to the block through 3 bolts. Then move it ahead, so opens a hole from aide. For better access removed the stabilizer from below. Also want to add the wrench number is 11 in my case.

[@universalchiro]

Nice video

[@fishongethenet]

Great video! Thanks for the info...working at home with jack stands and a jack holding up the car I was uncomfortable trying to get to the tensioner bolt from underneath the car. I was able to access the bolt to remove the tensioner by first removing the air filter and housing including the intake manifold.

[@terrencesingh5108]

Hi, I would also like to change my belt and tensioner . Like you I do not have a lift and would have to work from under using jack stands. How difficult was it to remove the manifold etc?

[@fishongethenet]

@@terrencesingh5108 Not too difficult at all. Lots of connectors attached to the manifold housing so be careful they break easily. There is also a single connector underneath the housing that you'll need to disconnect before pulling it out.

[@gasperajdnik5627]

Tanks for the video 😎👍

[@HowtoAutomotive]

Gašper ajdnik thank you for watching!

[@jasonc.4683]

That's awesome. Thank u bryan 😀😀

[@HowtoAutomotive]

Jason C. Thank you for watching!

[@leewhyramoslock7792]

good video... I"m looking for a video that explain how to change the torsion bar rubbers or sway bar rubbers.

[@RUGQBIFF]

Great video. You saved me the trouble of unlocking the mystery. My son went out and bought one of these pieces of crap. The W210 chassis was workable, Mercedes now made it difficult. They used to use a 3/8 ratchet to rotate tensioner, now a T60. Now they have two camshaft position sensors and two magnet solenoid adjusters, ridiculous. Only buy W210 and W208 chassis everyone. They are bulletproof.

[@sranjesuper]

You can't buy those cars forever, and w210 chassis had its own problems, especially the breaking suspension " spring " housings, which could cost 2000 per side to fix

[@RUGQBIFF]

@@sranjesuper I have owned W210 and W208 Mercedes for over 15 years and never had any chassis issues. Maybe the Mercedes gods have been shining down on me, LoL.

[@sranjesuper]

@@RUGQBIFF My dad's E320 2001 had to be sold because the front spring seats rusted out and body shop wanted 2K per side to do it. This is a problem you will only see in very high rust areas since they throw salt on the roads here. The W204 C Class is actualy a very good chassis. The engine is the problem and some electrical. But i would prefer to work on a W204 suspension, or chassis, rather than a w210 any day. Much easier to service and is very reliable and great handling.

[@humaidsalmi5732]

Thanks for help♥️

[@HowtoAutomotive]

Thank you for watching!

[@jamescruz231]

Wow amazing hopefully this could work for my 2004 kompressor

[@ashleyabrego9037]

Did it work

[@butterfly77330]

What about a 2016 cla45 Amg is the process the same?

[@Veaker]

For the chain tensioner is there any special instructions when removing?

[@joshuamcclain7016]

Love it

[@ftby59mikeD]

Great tutorial Brian, amazing how German engineering makes a normally easy task that much more difficult.

[@mristiqlal56]

Thanks bro...

[@HowtoAutomotive]

Thank you for watching!

[@faramarzdarshad2756]

excellent

[@HowtoAutomotive]

Thank you!

[@josemartinez575]

I was hoping to see you remove the piece next to the air snorkel ( left ). The piece bottom the engine cover at 1:10

[@coolvid]

Had a bad clanking grinding noise at startup, thought it was my tensioner. But my mechanic just changed the belt and it was fine afterwards. Is there a certain noise when it goes bad? Btw, when I got my new belt, the engine seems a bit “raw”, not as smooth as before (08 Avalon). Plus my idle was waayyy too high when I drove out their garage but settled down after a few miles. Any thoughts? Thanks for the how tos!

[@HowtoAutomotive]

Tony Hong Fishing I’m not sure why the idle was high. Unless the battery was run down.

[@coolvid]

How to Automotive ... they did disconnect the battery as the clock and radio stations were reset.

[@360fanboy360]

lol what a great setup

[@HowtoAutomotive]

GLC522 I have no idea why they didn’t make the bolts come from the front.

[@360fanboy360]

the one thing that isnt bad is that they squared off the body of the tensioner which makes it a little easier than a little locating tab

[@ericroper380]

This is definitely the hard / lazy way of doing it taking the intake manifold is WAY easier

[@ozzstars_cars]

That looked like fun....not really. Nice job explaining how to get the tensioner swapped out and replaced.

[@HowtoAutomotive]

Ozzstar thank you Glen!

[@Manhotocu]

Trước mình có làm 1 con mercedes. Cũng chết con tăng dây cu loa này. Chủ xe bảo thay hàng rẻ . Thay vào đi được 1 thời gian lại kêu. Thay hàng xịn vào cái khác ngay

[@seanbaxter3402]

I’m not the one to hate on someone but bro that diagram you posted on the video is incorrect I used that as an example and my belt ripped a hole in my coolant pipe on my radiator from rubbing on it which sucks but I don’t wanna blame you for it but I found the original diagram for the car and I got the belt on but still have the coolant leak I think you should fix that and I can send you the picture of the original one for 2013 Mercedes c250 coupe

[@seanbaxter3402]

Other then that problem the video was great and helped me a lot I was only changing my belt not the part you replaced but I appreciate your help. I also subscribed and liked the video

[@dustinsharer879]

People please don’t buy this car or even think about working on it, hands down the worst car I’ve ever worked on. Thank you for this video but that tensioner still took me an hour to get out

[@heyitschinoable]

What a bad design

[@HowtoAutomotive]

Yeah they could’ve done a better job at this. Thank you for watching!

[@khoinguyen88]

Can't agree more.... stupid designer. I think they are doing that so that job can only be done at the dealer or professional mechanic not backyard mechanic.