The secret to a clean engine, M272 and M273 Mercedes.

The secret to a clean engine, M272 and M273 Mercedes is the oil filter housing gasket, oil cooler gasket and steering reservoir seal. This applies to any V6 and V8 gas engine made by Mercedes from 2005 to 2012.

Video Contents:
00:00 Intro
00:38 Oil leak causes on M272 & M273
01:18 Required tool for M272 gasket replacement
01:40 Required fluids
02:35 Required parts and part numbers
04:05 Draining coolant from M272 Engine
04:39 Removing radiator Hose M272
06:30 Removing serpentine belt M272
07:20 Testing idler pulley for noise M272
07:38 Steering reservoir removal M272
09:15 M272 Oil cooler removal
09:55 M272 Oil filter housing removal
11:22 M272 Belt tensioner removal
13:40 M272 Thermostat removal
15:40 Cleaning the Oil filter housing M272
17:02 Oil cooler removal M272
18:20 Cleaning inside the oil cooler M272
19:33 M272 Thermostat and gasket
21:48 M272 Oil cooler torque spec
21:55 M272 Oil filter housing torque spec
22:41 Torqueing M272 oil cooler
23:20 Installing the oil filter housing M272
24:15 Torqueing the oil filter housing M272
25:10 M272 Thermostat housing torque spec
27:24 M272 Belt tensioner torque setting
28:30 M272 Idler pulley torque setting
28:54 M272 Hydraulic steering reservoir seal replacement
30:18 Mercedes Steering reservoir replacement
31:52 M272 serpentine belt installation
32:33 M272 serpentine belt diagram
33:45 M272 Radiator hose installation
35:40 M272 Steering fluid
36:36 M272 Oil filter replacement
37:24 M272 Oil Cap torque setting
38:25 Mercedes M272 Engine oil replacement
39:21 Mercedes M272 Engine oil viscosity
39:44 M272 coolant top up

[BenzAddiction]

M272 and M273 needs these to be done to make sure the front of the engine stays clean and also to make sure the belt, pulleys, tensioner, thermostat and serpentine belt are all in a good shape and this service plus the fluid changes, guarantees miles and miles of trouble free driving in your Mercedes with peace of mind, please like, share subscribe and give me your feedback and feel free to ask questions and I will respond as soon as possible, cheers Max, Brisbane Australia.

[Toniiy]

Excellent Tutorial, this video convinced me to do it. Thanks so much.

[chazpena]

125K miles. I had the oil cooler leak fixed...been purring like a kitten ever since!

[timmyb]

There is a specific pattern you are supposed to torque the oil filter housing bolts down, start at the middle bolt, then down, upper right, left across, down to the right, then upper left bolt last. When I replaced my oil filter housing gaskets I didnt bother draining the coolant, just pull off the oil filter housing and it drained that way. Also no need to disconnect the coolant hose and thermostat wire, just unbolt the thermostat housing and lift out of the way. After the oil filter housing was removed I then drained the oil in case there was any coolant contamination.

[robbbbbie]

Great tutorial, every high mileage Merc with these engines is going to have these issues. Probably worth changing the cam shaft sensors and magnets while the accessories are unbolted.

[judsonwidmymerviluszabala]

This engine generation family, M272/M273 are those engines that in comparison to M278 and M157 which sacrifice longevity and reliability for performance these two do the opposite. I was dying to get an M278, the turbos, and the horsepower were tempting, but once I started digging into the BENZ community, I realized it wasn't worth it. The M272/3 engines are more reliable than any other Mercedes V8 engine, and I'm not saying they are bulletproof, but in comparison with the M278, man... it's a heaven-to-earth difference. I declined a 2013 E550. 42K miles for a 2011 E550 with 90 miles. Yes, It's way more miles, but guess what? I won't be suffering from cylinder scoring, nor any turbo issue, no 4matic stuff. So, I'll have more peace of mind knowing that despite this one being older and with higher mileage, I know the problems that may pop up could be addressed, and unlike the M278 I won't have to be scratching my head because I need to get a new engine.

[Jupiterider]

This is a great tutorial. Thank you for doing such a thorough job.
I own a 2011 S550 with the M273 engine and this makes it much easier to own it.

[richo]

Excellent video explaining tear down and reinstalling cleaned parts. I have a 2011 E350 coupe. So this work would be the same on mine. I happen to keep a clean engine and bay area. I do my own work when possible . Has only needed a thermostat replaced which was under warranty years ago. I'm saving this vid for any future work needed. Thanks again Mate, for a fantastic vid.

[hijazicell]

Great job thanks for the information ❤

[jimmytapafini]

What's that tool you used to take out the black thing to get air in the system for the oil to go down?

[nv]

I wasn't happy with the fit of the Elring oil filter housing/cooler gaskets. Too loose, and I wasn't going to use rtv to retain them. You could get by with the oil cooler gasket a bit loose if the unit is off the engine, but the oil filter housing gasket snug fit is mandatory. The housing is held vertically to be installed, and you have to rely that gasket staying in place, especially because you can't really see behind the housing.
I installed oem MB gaskets for the housing/cooler. More expensive but the fit was perfect, no leak issues.

[cokermaseryer]

Hello i had an accident on the right side on my 2008 mercedes s550 after i have some code which is p0040 and 2 missfire code on the right side where the accident happened. I just noticed a leak on the rear right on to a wire and into exhust please help.. say oxygen sensor rapped. Please help. Car miss when u restart it smooth up back need help

[gianmariamalmesi]

Hi! Is that orange coolant MB approved? MB use a blue one

[Abu_Zooz]

Do I need to burp coolant system I have m273 engine cls550

[andreasb]

In thw beginning of the video you showed a 5w-40 oil, yet at the end tou used helix 5w-30?

[luisvargas-jrhk]

What type of pin is used for the pulley
Where can I get
Thanks

[jimmytapafini]

I'm going to be doing all this in the next couple of weeks. I'm scared to be honest 😅.

[bayad]

Hi, I have a 2010 e550 with the M273, I’ve been losing about a cup of coolant after every day of driving. I dont see any leaks visually and dont see any white smoke coming from the exhaust when idling. What could my issue be

[mydc]

14years old engine m272 10k km needs that also? I just changed the transmission oil, transmission oil filter, engine oil n filter

[JuanBetaa]

My 272 engine sounds the hydraulic tappets when the car is stopped. Is it very difficult to change them? regards