'It's not hard, it's just a bit tedious' is how I describe working on all of my old Mercedes. I had to take the dash out of my 1973 450SL to address a leaking heater core, and it was actually surprisingly easy, just a very deliberate set of steps that needed to be followed to the letter and about a million and a half bolts to undo. Also it's amazing how much less frustrating it is when you have the service manual.
oh yeh I hate dash-out jobs!, they do get easier in time but until you know all the tricks its a nightmare!. A manual would help tho. thankfully I have done enough work on engines in cars that I did not need one for this project.
Hey Ed love ur ac freon recovery setup.. good improvision.. could u do a quick vid of that setup one day.. it looks quite interesting. Miss ur AC vids u used to do a long time ago. I go back and watch them from time to time.
+Aussie50, i'd like to take a 50 / 50. If I use my ml270cdi (2002) daily, it starts fine, every time. If I leave it a few days, sometimes it will start and stay started, mostly it will start, bog and die within a second. Things I have turned up in my research include; fuel filter, crank sensor and dodgy voltage. The dash lights flash off then back on during startup. I will put the odbII reader on it next week and see if it is losing rpm numbers during startup. Do you have any experience (air in the fuel line) relating to this type of startup issue? fuel / electrical? Thanks. (great video series)
Be glad you dont have the Mercedes OM642 V6, I had an oil cooler leak problem due to a failed seals, the oil cooler is located in the middle of the V of the engine and to get to it, you have to remove the following, All Charged air intake hoses, drain the radiator, radiator hose, intercooler hose, Turbocharger assembly, fuel filter, Right Fuel Rail, intake manifold and only then the Oil cooler is exposed, It was a mess with all that oil carbon goop and took me well over 4 days to do it in 0*C temperature in non heated garage.
Ouch!, yeh I was considering the V6 in future, sounds like a pain to service tho. I would have to do a full week reco on it too, delete EGR, futureproof some shit etc.
Aussie50 heres my write up documentations of that procedure if you like to read it www.peachparts.com/shopforum/diesel-discussion/363973-journey-into-infamous-om642-oil-cooler-leak.html Ones that oil cooler seal is replaced with the viton purple seals its good for many miles to come.
Hi Aussie50 I have replaced the injectors after we spoke about 9 month ago now I have a black smoke from the exhaust I tried carbi cleaner into the EGR intake but now the car dose not start Any advise Cheers
OM612, hell yeah. get those swirler flap holes plugged and happy. I want to hear that thing roar again (well, as much as it can roar with a catalytic on it.)
smallenginedude71 most modern ones do, including Urea injecton/Adblue on modern commercial vehicles. the smell from a new diesel car as its running in is dusgusting, its a horrid smell. I was caught behind a new Skoda Diesel when I was driving Alyse home for the first time and thought she was on fire, then I remembered the smell and saw that I was behind a new Skoda with dealer plates on it. the Cat was just burning in and it was horrid. Petrol engines are not much better either!.
Aussie50 I've got a SClass with the 4.3 V8, and it sounds really good for a small v8 ! the german v8s have a certain sound. Too bad Merc wont sort out their electricals
Aussie50 well on the Sclass once the drain of the hvac get plugged it gets buggy water travels under carpet. On the ML water gets in the rear SAM throught the rear lights. If you know it, you can usually prevent it. But now they are old cars, and parts are reasonnable and people know the bugs. A 3 year old merc is not something id own unless I was filthy rich
Hi Aussie 50, finding these vids on yt is great they are fascinating, I know a bit about cars and intend to do as much of my own maintenance as I can manage, we are the proud owners of a 2002 ML 270 cdi 7 seater version, only went to look at it as we needed 7 seats. When I fired it up for the test drive I thought SHIT that engine sounds awesome !(sounds like a Cummins) and it doesn't disappoint on the road either pulls like a train with bags of low down effortless torque ,love it! much maligned/underated cars over here so it was a snip at £3500 with only 99.000 on the clock.anyway thanks and keep up the good work!
+Nick Jenkins Thats a nice deal on a 2002!, they are indded a cool rig, the engines stay strong for over 300,000 as in the case of mine at 360,000 or so!
ah about 12L per 100km highway, 14 or so if I am giving her a hard time around town. I am only estimating tho, I have never really measured or compared fuel economy on my cars
I had my SAAB's AC recharged, and my mechanic couldn't pull a vacuum on it. He put dye in the lines and found it just dripping out onto the floor. xD The low-side line to the AC compressor had been rubbed through by the nylon clip that held it to the lower radiator support. The high-side was snapped into the same clip, and was almost rubbed through too. Had to replace a looot of hoses, the receiver/dryer and all the o-rings. $$$ Sigh.
tcpnetworks My mechanic wrapped the lines with a few turns of that self-adhesive silicone tape where he snapped them into the clips. Hopefully that doesn't happen again during my ownership.
I think diesels are much more easier and simple to work on - Then car manufacturers had to start throwing in all computer controlled that, computer controlled this, let's put a sensor on every little thing so that when THAT ONE SENSOR DIES, The WHOLE car does! and you're forced to take it into the dealer, and pay big money to replace a $5 sensor! But nice work though, Ed - I've always wanted to take a care with higher miles and kind do a good cleaning and servicing of it, Even if it ran decent... Just to give it more life, and run more efficient.
aserta I do believe their is a MASS Airflow sensor sensor for detecting if the sensor is is clean and.... sensing. I know on every ABS equipped car their are sensors that can determine if other sensors are going bad but its not a dedicated sensor for that purpose. Like the metering valve sensor will send a code if it senses the proportioning valve sensor has gone wonky
SlickNicklol MAF sensors receive a 5v reference signal from the PCM. that reference signal is telling the PCM hi, I'm here. The vehicles PCM monitors for voltage high (open circuit) and voltage low (shorted circuit/ dead component) MAF sensors can lie (Common on toyotas) which can throw false lean codes ( p0171/p0174) stalling, etc. Best way to test at home is clean it with MAF cleaner and see if it runs better. If you have a scanner, have a friend drive the vehicle while you monitor engine load, should go above 93% if good. If not clean it and retest, if It reads ok after that, replace the sensor.
I think I'd probably fill my underwear at the prospect of taking all that apart, granted I'm great at taking things apart, it's just getting them all back together again that I have issues with, I'd probably be left with a half-stripped engine that was left forever and ever to sit half-stripped... :P
thankfully not one that I could not control (decomp lever) that blue China diesel had a jammed govenor when I first got it started, but I hit the decomp before RPM's got dangerous.
spongebob7285 yeh you gotta stay cool when testing an engine for the first time, or after a rebuild, identifying an issue before it harms you or the engine is crucial.
'It's not hard, it's just a bit tedious' is how I describe working on all of my old Mercedes. I had to take the dash out of my 1973 450SL to address a leaking heater core, and it was actually surprisingly easy, just a very deliberate set of steps that needed to be followed to the letter and about a million and a half bolts to undo.
Also it's amazing how much less frustrating it is when you have the service manual.
oh yeh I hate dash-out jobs!, they do get easier in time but until you know all the tricks its a nightmare!.
A manual would help tho. thankfully I have done enough work on engines in cars that I did not need one for this project.
FANTASTIC A CAR THAT YOU CAN SEE THE GROUND UNDERNEATH THE ENGINE .( Ah the good old days )
Hey Ed love ur ac freon recovery setup.. good improvision.. could u do a quick vid of that setup one day.. it looks quite interesting. Miss ur AC vids u used to do a long time ago. I go back and watch them from time to time.
+Aussie50, i'd like to take a 50 / 50. If I use my ml270cdi (2002) daily, it starts fine, every time. If I leave it a few days, sometimes it will start and stay started, mostly it will start, bog and die within a second. Things I have turned up in my research include; fuel filter, crank sensor and dodgy voltage. The dash lights flash off then back on during startup. I will put the odbII reader on it next week and see if it is losing rpm numbers during startup. Do you have any experience (air in the fuel line) relating to this type of startup issue? fuel / electrical? Thanks. (great video series)
I have a w163 ml 270 cdi
what do you think about deleting the Swirl Flaps .
Great work Ed , should come up well !!
If you have the heater hoses off, flush dirt out of the heater core with fresh water.
Be glad you dont have the Mercedes OM642 V6, I had an oil cooler leak problem due to a failed seals, the oil cooler is located in the middle of the V of the engine and to get to it, you have to remove the following, All Charged air intake hoses, drain the radiator, radiator hose, intercooler hose, Turbocharger assembly, fuel filter, Right Fuel Rail, intake manifold and only then the Oil cooler is exposed, It was a mess with all that oil carbon goop and took me well over 4 days to do it in 0*C temperature in non heated garage.
Ouch!, yeh I was considering the V6 in future, sounds like a pain to service tho. I would have to do a full week reco on it too, delete EGR, futureproof some shit etc.
fuck sake!
Aussie50 heres my write up documentations of that procedure if you like to read it
www.peachparts.com/shopforum/diesel-discussion/363973-journey-into-infamous-om642-oil-cooler-leak.html
Ones that oil cooler seal is replaced with the viton purple seals its good for many miles to come.
Hi Aussie50 I have replaced the injectors after we spoke about 9 month ago now I have a black smoke from the exhaust I tried carbi cleaner into the EGR intake but now the car dose not start Any advise Cheers
OM612, hell yeah.
get those swirler flap holes plugged and happy. I want to hear that thing roar again (well, as much as it can roar with a catalytic on it.)
I am starting to think that the cat converter is already empty, but I will replace it with straight 2.5" pipe eventually.
Aussie50 i didn't think diesels had cats on them.
smallenginedude71 most modern ones do, including Urea injecton/Adblue on modern commercial vehicles.
the smell from a new diesel car as its running in is dusgusting, its a horrid smell.
I was caught behind a new Skoda Diesel when I was driving Alyse home for the first time and thought she was on fire, then I remembered the smell and saw that I was behind a new Skoda with dealer plates on it. the Cat was just burning in and it was horrid.
Petrol engines are not much better either!.
Aussie50 ah i see. thanks for the info. that would explain the funny smell from some diesel cars :D
damn that radiator fan is immense! awesome car, i would really like the v8 version :D
hell yeh, I think we both need an ML55 AMG in our life at some stage :D
Aussie50
I've got a SClass with the 4.3 V8, and it sounds really good for a small v8 ! the german v8s have a certain sound. Too bad Merc wont sort out their electricals
Veikra its a shme they are so buggy, I found an ML430 for a few grand the other day, but I will save and get an ML500 or 55AMG first :D
I looked up that fan on ebay and they run over $1100!
Aussie50
well on the Sclass once the drain of the hvac get plugged it gets buggy water travels under carpet. On the ML water gets in the rear SAM throught the rear lights. If you know it, you can usually prevent it. But now they are old cars, and parts are reasonnable and people know the bugs. A 3 year old merc is not something id own unless I was filthy rich
That's one complicated ass SUV haha.
That whole thing just seems so intimidating.
Hi Aussie 50, finding these vids on yt is great they are fascinating, I know a bit about cars and intend to do as much of my own maintenance as I can manage, we are the proud owners of a 2002 ML 270 cdi 7 seater version, only went to look at it as we needed 7 seats. When I fired it up for the test drive I thought SHIT that engine sounds awesome !(sounds like a Cummins) and it doesn't disappoint on the road either pulls like a train with bags of low down effortless torque ,love it! much maligned/underated cars over here so it was a snip at £3500 with only 99.000 on the clock.anyway thanks and keep up the good work!
+Nick Jenkins Thats a nice deal on a 2002!, they are indded a cool rig, the engines stay strong for over 300,000 as in the case of mine at 360,000 or so!
What's the thing on the back of the turbo?
Probably the cat
Meow
Also, what kind of fuel mileage were you getting?
ah about 12L per 100km highway, 14 or so if I am giving her a hard time around town.
I am only estimating tho, I have never really measured or compared fuel economy on my cars
its not good where u get 4 days off out of the week man. thats really bad. or do you still get paid either way or something?
Yep it looks complex to me Ed, but im no mechanic :D
Hi there
I have a problem with my ML 270 once it warms the gears won't shift at all please help
Thanks
Kepper G vmcbnn)/mi k
I had my SAAB's AC recharged, and my mechanic couldn't pull a vacuum on it. He put dye in the lines and found it just dripping out onto the floor. xD
The low-side line to the AC compressor had been rubbed through by the nylon clip that held it to the lower radiator support. The high-side was snapped into the same clip, and was almost rubbed through too. Had to replace a looot of hoses, the receiver/dryer and all the o-rings. $$$
Sigh.
ah yes the fun of working on car AC's, it gets expensive real fast!.
Man! I had *EXACTLY* the same thing on a Vectra B! GM didn't learn...
:)
tcpnetworks
My mechanic wrapped the lines with a few turns of that self-adhesive silicone tape where he snapped them into the clips. Hopefully that doesn't happen again during my ownership.
Will there be an air filter over the turbo :P
lol, the stock airbox is actualy pretty good on modern cars, its all staying.
I think diesels are much more easier and simple to work on - Then car manufacturers had to start throwing in all computer controlled that, computer controlled this, let's put a sensor on every little thing so that when THAT ONE SENSOR DIES, The WHOLE car does! and you're forced to take it into the dealer, and pay big money to replace a $5 sensor!
But nice work though, Ed - I've always wanted to take a care with higher miles and kind do a good cleaning and servicing of it, Even if it ran decent... Just to give it more life, and run more efficient.
I bet, there's a sensor for a sensor in that car. There has to be one.
aserta I do believe their is a MASS Airflow sensor sensor for detecting if the sensor is is clean and.... sensing. I know on every ABS equipped car their are sensors that can determine if other sensors are going bad but its not a dedicated sensor for that purpose. Like the metering valve sensor will send a code if it senses the proportioning valve sensor has gone wonky
SlickNicklol MAF sensors receive a 5v reference signal from the PCM. that reference signal is telling the PCM hi, I'm here. The vehicles PCM monitors for voltage high (open circuit) and voltage low (shorted circuit/ dead component) MAF sensors can lie (Common on toyotas) which can throw false lean codes
( p0171/p0174) stalling, etc. Best way to test at home is clean it with MAF cleaner and see if it runs better. If you have a scanner, have a friend drive the vehicle while you monitor engine load, should go above 93% if good. If not clean it and retest, if It reads ok after that, replace the sensor.
I think I'd probably fill my underwear at the prospect of taking all that apart, granted I'm great at taking things apart, it's just getting them all back together again that I have issues with, I'd probably be left with a half-stripped engine that was left forever and ever to sit half-stripped... :P
could anyone please explain what tlc is? google only finds crap
tender, loving care iirc
FrankTheCat Tnx i thought it was some kind of spray like brake cleaner :0
Have you ever had a runaway diesel?
thankfully not one that I could not control (decomp lever) that blue China diesel had a jammed govenor when I first got it started, but I hit the decomp before RPM's got dangerous.
Nice one. I'd just freeze up and panic!
spongebob7285 yeh you gotta stay cool when testing an engine for the first time, or after a rebuild, identifying an issue before it harms you or the engine is crucial.
I imagine a CO2 extinguisher to the turbo inlet would help as well.
spongebob7285 absolutely!
your voice at 1:58 lol
Mercedes Service Z, Ze car ish krankenbroken !