Srivasb5

Hey guys,
I got my s550 to the local garage to fix my s550 (2015) Upper Timing Covers of S550 leaking and I got an estimate of $3580.
My dealer pointed out about the upper timing cover leaking.
Please take a look at the estimate and let me know if the estimate is reasonable and any other work arounds.
Your suggestions are appreciated.
Thanks in advance.

carlosinseattle

You should post this in the W222 section. Maybe a moderator will move it for you.

VII

How big of a leak do you have?
​​​​​For $3.5k make sure the work is really needed

wheatswake

That seems like a crazy price if they are just re-sealing the front cylinder head/timing covers on the S550 M278 engine. I don't even think the oil filter housing has to be removed like it does on the M278 in my E550 coupe. The S550 M278 oil filter housing is positioned a little different. Dont know why they are quoting turbo coolant lines and thermostat. I don't think they should have to be removed to only re-seal covers.

Srivasb5

Thank you guys for your suggestions. Appreciated!!

carlosinseattle

Agreed that that work doesn't need to be done, but smart to do it while in there, provided they don't simply "add" hours for each job like it's being done seperately. If they give you a break on the hours to do the thermostat and coolant lines, it would be smart to get that done at the same time. I can't see on your work order how they're pricing out hours by each job.

I'd ask for a more detailed work order showing parts and hours by job.

Baltistyle

If you have any diy experience, this is very easy to do and as mentioned, the oil cooler, hoses, thermostat etc should not have to be removed. Only the intake and charge pipes are in the way. If that thermostat is touched, it will also crack. Check out the m157 threads on check valves and tensioners for some idea of what it looks like, only yours is much easier. My only suggestion if you diy is to make sure to either let your car sit for a week if using mb sealant, or use something that dries and is ready in a day. The sealant requires humidity and temperature to set correctly so check the charts and abide, or the leak will re-occur. If you are able to do this all without the dealer, you may want to replace your CPS and Magnets while in there, or add protection in for the wiring harness if theses sensors are at all leaky.

The bolts holding the covers must be replaced, and use a torque wrench set properly for install as the aluminum bolts break super easily. Buy a few extra.

Get the parts from FCP. If you want to replace all of those hoses, its a bigger job but still worth it when DIY. ITs worth replacing them, just not for an unrelated leak.

Lastly, if you have the money, there is nothing wrong with having someone else do it all for you.

When I did my m157 I did re-sealing Cam Covers, Tensioners, Check valves, Turbo coolant lines, Thermostat and all the sensors for just over a grand. This would have been near 5 grand at the dealer. FWIW. It was my first time doing the job and took a good day of labor split over a few days, due to the mb sealant being made of sh*t and never curing...(yeah Ive harped on this in a few recent threads because its another way the manufacturer has failed the public and guarantees problems for future users and mechanics)

We will help you if you need