Mercedes C250 Timing Chain Replacement Part 1

[@yyyhj7895]

I have 2014 c250. I'm second owner at 29k miles. Car is at 150k miles. Engine is actually louder sound wise but no rattle or shaking from engine. I do regular oil change. I've done most recommended services like fluids and spark plugs. Never the chain was change once.

[@Finestizpro]

What oil do you use? Do you use OW-40 or 5W-40?

[@yyyhj7895]

@Finestizpro I forgot because I usually take to my friend shop to do it but 5w 40 sound like it.

[@Finestizpro]

@@yyyhj7895 seems to me these engines like the thicker 5w-40 over 0w-40. the long service intervals from Mercedes makes them wear out faster. i currently have a 2015 c250 coupe with 7k miles and I want it to last without this issue.

[@AMSOILRyan]

When you add the new tensioner back and you said you have to spin the crank shaft for it to engage. Aren’t you worried that it will skip teeth on the upper sprockets ⚙️ ⚙️ and throw it out of time before the tensioner engages?

[@operationoverhaul]

No, when you do it by hand it is turning it slow enough to where it will not cause this to jump timing before the tensioner expands.

[@samsing9215]

How much tension should be on the exhaust side ?

[@jcar716]

How do you determine which engine is torqued to 90nm and which is 130?

[@operationoverhaul]

I had to call mercedes and provide the vin number. I asked them what the visual difference is but they did not know either as they got it from the vin.

[@MrODotCom]

This job brought me to your channel. Got 2014 c250 wirh sane rattling sound. Mine is a bit louder. How do i get in touch? Or your shop location. Thank you

[@operationoverhaul]

I am actually booked up at the moment until after January. If you can wait until around that time I could possibly help you out.

[@MrODotCom]

Wow. Thank you for the reply. I hope it holds till you can get me in.

[@MoraimaValadez]

My husband is going to try fix it using this video. Wish us luck!

[@operationoverhaul]

The tools are probably the most important part as you need several special tools so I would suggest getting them from Amazon if he does not have them already. I think I even linked them in my description. Then taking your time to make sure everything is correctly timed and torqued as well. Good Luck on your adventure. It is not a hard job but just a tedious one.

[@5.7SOCIETY]

This part is under warranty w Mercedes

[@SpenserCraig-p4i]

Hi im wondering what the part number is for where the timing cover meets the cylinder head, where the thermostat goes. That little gasket or o ring whichever its called. Around 12:10 in your video

[@operationoverhaul]

I believe this is the part number for that gasket: 0179975045 and the brand is a victor reinz.

[@SpenserCraig-p4i]

@operationoverhaul I ordered both the upper and lower gasket. One of them is the correct one so I'll find out soon. Thank you for replying!

[@operationoverhaul]

@@SpenserCraig-p4i your welcome.

[@yavored111]

Hi just replaced timing chain and both camshaft sprocket the timing is perfect no drivability issues the problem is that I am getting p001700 and p001600 camshaft correlation Really appreciate it

[@operationoverhaul]

Your welcome and you may be getting the code because they did something they should have mentioned in the work instructions to some of these engines. So on some of these, the timing marks are actually off a hair and you have to rotate them a little further to actually get it in time. If you want to call Mercedes, they can usually let you know if your car falls into that category.

[@420mrcollins]

Do you have a link to the tools used to conplete this job?

[@operationoverhaul]

They should be in the description of either this video or part 2.

[@nonthaburibear2201]

Do you remove the radiator Sir ? mine rattle at 83k KM .i gues i have to do this myself

[@operationoverhaul]

No, I did not remove the radiator. The guides were good on this car so I did not have to remove them. If you need to remove them you would need to remove the radiator according to service data.

[@nonthaburibear2201]

@@operationoverhaul Ok Thank You,

[@kamalpakdaman4230]

Hey buddy. Nice job. Just have a question. I am doing the exact same job on my E250 coupe 2009. I have purchased the parts from Ebay from a Chinese supplier. I just installed the adjusters but when I turn the crankshaft to go for a check 360 Deg to see if the lines mach, actually the adjusters keep passing the chain and playing. Like when I turn the crank the intake camshaft keeps still for a few degrees and then jumps back to turn. Can you help me on this plesas. I suspect it may be the parts.

[@operationoverhaul]

It sounds like the parts have to much play in them causing them to move more than they should.

[@imrananwar8845]

But why are you changing the timing chain? Any specific reason?

[@operationoverhaul]

That is a good question as not every chain has to be changed. I was changing the gears so I wanted to do the chain while in there and I would have hated for the chain to be stretched and have to take that all back apart again to change that.

[@Mr805smoke]

Is this a non interference motor a non? I found a cheap one but the chain broke wondering if I should try reviving it

[@whlawson5812]

There is one U tuber whom taken effort to install pigtails wire for cam adjustors, camshaft sensor & crankshaft sensor so that no oil gets into the ECU of his year 2016 E-300. Could oil getting into ECU will cause small & repeating flustering of camshaft adjusters and worsen wear rate of timing chain & the sprockets?

[@operationoverhaul]

I have not seen that one yet. I may have to look it up. It makes sense that it could do that because if oil got into the ecu, it could cause the adjusting on and off more than it needed. I'll look into that more to see what I can find out for everyone. Thanks for letting me and everyone else know about that.

[@whlawson5812]

​@@operationoverhaul just check in google. Pigtails for camshaft position sensor in online ranges from USD4 to 8 per piece but bare wires at one of the two ends. Other end is clip-on adaptor. I think you have to cut the original wire of the original click-on adaptor by 3 to 4". Then twist the corresponding wire & solder it before properly reinsulate the soldered wires with 3M conformal tape rated for 105 degree C. I will not likely to do

[@whlawson5812]

@@operationoverhaul hello, I go thru U tube and noted that even for new clip-on replacement connectors for headlights they also use the term pigtails. So unless the pigtails sold online are mentioned as having "anti oil migration capability" then they are not having the same function as those installed onto the outlet of Mercedes camshaft adjustors. 🤔🤔🤔

[@darrelllancaster6803]

Hey great vid ! Are these interference engines ?if the chain breaks will it xause damage to valves and head?

[@operationoverhaul]

Yes these are interference engines. Just when you put it in the timing position, it puts the valves in a spot where you can rotate the engine.

[@justinjheijnen]

How long does the whole repair take?

[@operationoverhaul]

It took me roughly 6 to 7 hours the first time I did this job.

[@jrmullenberg]

What is the hose with the red piece connector? Mine broke when pulling it off.

[@operationoverhaul]

Are you talking about the hose around the 2:40 mark?

[@SC-gh6gd]

Great video! 👍 How many miles did this C250 have? What milage do you recommend doing this?

[@operationoverhaul]

Thank you. This one only had 45k or 50k on it. To be honest, these fail a lot on this model so if you have not changed by 50k I would probably do it of it was my car but if it is running good and no rattling you could wait till it started showing signs

[@SC-gh6gd]

@@operationoverhaul good to know. Thanks. 👍

[@lydiaparets5574]

I had to do my at 78,000

[@dashcamldn8043]

Just done mine at 65k. Does cost alot so do it asap don't delay as it can cause more major issues

[@douglasstrait1180]

My 2013 c250 just had chain break & blew the engine with 88,517 miles on it. MB wants $18 to replace it. How much should it cost? And how many hours labor? Mb says it 18 hours.

[@user-bw5hk5nb3k]

Hi, can u say which replacement chain set are good ? not orginal Mercedes please : (

[@operationoverhaul]

I know some people have had decent luck with the Vaico brand but I normally use the Febi Bilstein brand if not going OEM.

[@user-bw5hk5nb3k]

The complete set from Vaico or ? I also have to change one of the slide rails, I suspect, because you have to unscrew a cap, can you continue to use the old rubber cap? Is it difficult to get through and how many hours should one plan, I was thinking 12H? Thank you for everything, I'm in deep trouble

[@operationoverhaul]

@G yeah I would get the whole set and go ahead and replace it all because you are going to be in there so you may as well do those just to be sure. I would set aside a day or two just in case anything happens

[@user-bw5hk5nb3k]

I have all the tools except for the slide rail, only one is changed, right? I'm afraid I won't make it :( First you turn the crankshaft to TDC, then you separate the chain and secure it, then put the camshaft adjuster on the straight line and unscrew the blocker tool and pull a new chain, right? Can i write you on whatsapp or telegramm ? i was really happy ? : (

[@whlawson5812]

@@user-bw5hk5nb3k if not mistaken there is requirement to press down the new tensioner, insert & tighten & install in place and then release the tensioner for it to press upon the guide and then onto the new chain. Also about camshaft adjuster position must not be in locked-in position until oil is put in and for it self lock & unlock by engine oil pressure during the starting of the engine. Yes, no?. 🤔🤔🤔. Please check on both of these before doing such a big job. I intended to install a fluid filled 50mm diameter PG, having 1/4" NPT threads, by tapping onto top of hex shape part of the oil filter casing. I will use this PG to verify oil pressure at hot idling rpm vs 2000rpm hot at neutral. Will do this during next new oil & new filter change and verify oil pressure at every 1000miles until next oil & filter change out. Upgrading to a pressure sending unit with a pressure gauge on the dash will depend on this outcome. But need to address the limited available head space, from the top of the oil filter until the hood liner, is only about 2.5 inches. Not sure it is a singular cause or sum of all small causes leading to premature wear on timing chain & sprocket. Fuel dilution into engine oil, not having a correct dipstick to verify & top up oil level after every 1000 miles, fake oil and/or fake oil filter, correct oil is changed but oil filter not changed, debris like RTV silicon in pickup tube, faulty PCV valve thus some of the supercharged or turbocharged is air blowing into engine crankcase, etc etc etc. Food for though. 🤔🤔🤔🤔 Any idea on what would be happening at 3000rpm, with the car's normal oil pressure after the oil filter at 75psi, but it actually having only 30psi. Pls keep sharing!. Regards.

[@rob6154]

Are these engines truly reliable???

[@operationoverhaul]

I am not a fan of this engine personally. They tend to have several issues and the chains/guides/gears are the main one (and it is a major one). I am not really a fan of any mercedes turbo 4 cylinder engine.

[@Thegreatestversionofonesself]

Absolutely not

[@javier-qv4is]

what tools would i need if i just changed the chain

[@operationoverhaul]

You would need the chain breaker tool, the pin tool to crimp the face of the pin, and the cam holder tool.

[@giovannimartinez1797]

Where are you located? Need timing done. I’m In TN

[@operationoverhaul]

I'm in sc actually.

[@slabzzz]

Someone is selling a salvage title 2012 c250 premium with same timing rattle at startup. 97k miles for $5800. Is it a good deal?

[@operationoverhaul]

I would check to see what a good running one sales for in your area and compare that to this one and what the repair would cost. In my area that would be a decent deal as a good one with no issues around that mileage would go for over 10K with less than 100k miles.

[@jeffreycicero6685]

How much time does this whole job take, beginning to end? For a novice mechanic, not someone who's done same job 20 times... Also, can you just change the guide and tensioner? That might be quicker. I only hear the rattling for the first 5 seconds or so.

[@efeG24]

How much does it cost to get it fixed?

[@operationoverhaul]

The dealership in my area normally charges around 3600 to do it with parts.

[@efeG24]

@@operationoverhaul thanks brother do you know other common problems?

[@operationoverhaul]

@@efeG24 the door handles are a common failure point on these. I know I change a few headlight assemblies on these too due to wires burning up on them but that could be just my area. Other than that I do not see many other issues from these.

[@efeG24]

@@operationoverhaul thanks alot brother i appreciate your help 👍 im getting worried about the timming chain the fact that im hearing it when i run the car alot

[@dirtmcgirt1643]

How much does it usually cost to do this job?

[@operationoverhaul]

The job calls for 4.5 hours if you are doing just the chain and I think 11 if doing the rails and chains. It says to pull the engine for the rails and an entire timing kit from fcp is around 600 dollars. I would charge 800 for the rails and chain then just to do the chain I charged 500 but those are my cost. The mercedes dealership normally charges 300 an hour near me and they would add another hour of diag time so you are looking at about 3600 from them in my area.

[@Tbagnbdn]

Good video. My M271 Evo engine is driven 230k and still running original chain without any rattling. I guess I'm lucky.

[@operationoverhaul]

WOW is about all I can say lol. Seems like you take really good care of it then too. This one was the earliest I have seen them need it but still, I see them typically go between 60K and 70K. I would keep doing what you are doing then.

[@jacquesvanzyl374]

Hi there. At what interval do you do oil changes? I understand that regular oil changes and also the correct type of oil on these w204's are the main reason for the timing chain lasting a bit longer? What is your oppinion on this?

[@imrananwar8845]

I have 320,000 Kilometers on the ODOMETER and the engine is silent like brand new. I replace engine oil every 5000 miles or 7500 Kilometers which is 5W40 which is 229.5 from Mercedes Benz.

[@whlawson5812]

​@@operationoverhaulhello, do you split open the used oil filter after every engine oil change?. Spread out paper filter would be 2ft long. 1c.c of steel is about 8 grams. Hundreds of very small shiny steel bits would come from 1c.c of worn steel. So checking split opened oil filter should give idea if high wear on sprockets & chain is low or high. Any possibility of fuel dilution, from the crankcase cam operated fuel pump, going into the crankcase?. Regards.

[@operationoverhaul]

@whlawson5812 this is not my car but a customer's. But on on these, I would do it as I know they are prone to chain, guide, and tensioner failures then the fact that it is a cartridge filter would make it easier as well

[@djanahabib7396]

Is it possible to change the motor of the 651 or 646

[@operationoverhaul]

Its would be a lot of work. The computer and wiring harness would need to be changed. I'm not sure about the motor mounts if they are in the same place or not. I would have to check that.

[@totallybonkers]

Another question for you. Is there a "master link" on the timing chain, or can I break any link? If there is a master link, how do I find it? I see some brass looking links on the original chain, but most are steel. I presume there is some order to these brass links because there is one, then a few steel links, then 3 more brass links grouped together.

[@operationoverhaul]

Most of the master links I have seen are back but I have seen bronze colored ones as well. Before I did this job I research and called Mercedes and they said that you can remove any link with the tool.

[@totallybonkers]

​@@operationoverhaul - Perfect. Thanks for the response! Great videos, very helpful.

[@operationoverhaul]

@Totally Bonkers your welcome and if you need anything else just let me know.

[@lydiaparets5574]

Excellent video Very detailed Thank you

[@operationoverhaul]

Thank you and you are welcome. I am glad you enjoyed the video.

[@buyvolvo]

gonna need that plug for the tensioner hole

[@josephebermudez]

How much does this cost someone

[@operationoverhaul]

I think most dealerships charge over 3k just in labor if I remember correctly from the owners quote but depending on your area and if you go dealership or independent shop it could range from 1500+ dollars.

[@steve-zx3dy]

where's part 2 of chain replacement ?

[@operationoverhaul]

I have had a couple of people ask me this so I am going to put a link in the video near the beginning for everyone. I see you found part 2 from the question on there. Sorry for the confusion on find part 2.

[@carlossegovia9309]

I Do the same process and don’t star I Don’t no what to do now

[@operationoverhaul]

So, the car will not start since you changed the timing chains?

[@whlawson5812]

For engine oil change are you doing it every 10k miles or every 5k miles?. Aggresive driving style?. Pls do a video if you later decided to open up both camshaft adjusters to check for excessive wear on the hole for adjuster locking pin. After every oil change do you split open the old oil filter to check for shinny metal particles?. Regards.

[@operationoverhaul]

If you doing some aggressive driving then I would recommend every 5k. I already opened them up but did not get a video of it sorry. I should have shown a video but did not think of it. On these engines I typically like to look at the filters for any debri as the timing chains, sprockets, and guides are a common failure on these.

[@rickybobby4230]

Battery located to the left under the hood

[@whlawson5812]

Hello, while pre 2007 M2711.8 litre Mercedes engine is using thinner looking timing chain does improper sequences of stopping & putting parking brake on a slope will damage the timing chain?. Especially switching off the engine on a slope with the selector left on D mode. Stop on slope with engine still idling, right foot still pressing on the brake pedal, put selector to N, press fully onto foot operated parking brake, release right foot on brake pedal, car body will shift a bit but not roll backward due to hold back by rear wheels brake, press right foot on brake pedal, shift selector to P. Switch off the engine and take off the right foot from the brake pedal. 🤔🤔🤔 Regards.

[@edwardcaraballo23]

The car ran out of time or you are just changing it for maintenance??

[@operationoverhaul]

The chain was actually slapping and the phasers/gears were rattling while running. It did not jump timing but was getting close to it as the tensioner was loosing tension after I inspected it. You could really hear it upon start up but it would get a little more quiet once it was warm but still would make noise and rattle but not as loud on the start up.

[@whlawson5812]

​@@operationoverhaul . So the tensioner, premature failing, is the culprit for all these damages?. Any clearly visible wear on the sprockets & the chain?. Would you be splitting open the old paper oil filter, from now onwards, after every oil change to check for metal debris?. If PCV valve in this car is not easily reachable would you relocate the PCV valve as near as possible to the air intake manifold. In place of the location of the old PCV put in a barb connector with smart clips. Then you could inspect the relocated PCV valve annually. Dipping for oil level at about 2 to 3 minutes after starting & keeping the engine running, in my case, I could see engine oil level drop of 4/5 inch. This is after changing to a new PCV but miss the opportunity to relocate it to higher up. 🤔🤔🤔 Would you modify the top of oil filter casing to install a oil pressure gauge or oil pressure sender unit. Or is there a better place in the engine block. Does this engine have a pressure switch for low oil pressure?. Regards

[@operationoverhaul]

@whlawson the chain and sprockets had some wear on them from the slack the tensioner caused but not an enormous amount. As far as the pcv I have seen people do that and they said that they are glad that they did it but I have never done it personally. I tend to check most of my filters for debris anyway, so that is a good practice. When it comes to the oil pressure, I believe it does have a low pressure switch on it.

[@mmaguy666]

If you can do this why do mechanics tell me its engine out???

[@operationoverhaul]

To change the guides you need to remove the engine but this car had really good guides on it because of the low mileage

[@buyvolvo]

nevermind. yougot the entire kit

[@yovannigomez4849]

Man this is the same problem I’m having right now ! I wish u could do mine lol

[@operationoverhaul]

It is a common problem with this model. If I lived close would do it for you.

[@rickybobby4230]

Where are you located just wrapped up doing some ones car. I'm in Houston.

[@operationoverhaul]

@@rickybobby4230 I'm in south carolina on the boarder of north carolina just below charlotte

[@khalidmahmood8466]

@@rickybobby4230 ricky, whats your info

[@sherwinpangilinan4079]

@@operationoverhaul Hi, Where are you located and whats the approximate cost of this job , My c250 needs work

[@georgeshenriquez3431]

I just subscribe to your Channel Men Great video verry detail 👍👍👍 . can you do my car 2013 C250 ! 93.000 miles ?

[@operationoverhaul]

Thank you. Depends on where you are located?

[@romanmuradyan220]

Hi master, a W204 C180, at 124000km After replacing the chain, the noise remained and starts after 3 times. I would like to know how is it possible to correct the problem? Thanks in advance for watching the starting video. kzbin.info/www/bejne/p3PTg56io5xnrpo

[@operationoverhaul]

Did you replace the tensioner while you were in there?