Mercedes Oil Cooler Line Leaking DIY Fix w163 ML500 ML320 Most Benz Models
Вставка
- Опубліковано 16 жов 2020
- If your Mercedes Benz Transmission Oil Cooler lines have a leaking rubber section here's a creative money saving DIY Fix using Auto parts store supplies, hand tools & no need to remove whole lines from vehicle.
This Fix method would apply to RUST FREE cooler lines only.
Rusted lines should be replaced by brand new lines.
Shown on my 2002 ML500 but any Mercedes model should be similar.
Please note on Raw Video originally uploaded October 17, 2020 there is dead video from 14:20 - 22:40 so fast forward past it.
Also look for the brief Part 2 Update -
Thanks David
Please join us on the BenzWorld.org Forum for Various Mercedes models ! - Авто та транспорт
Hey Fellow Benz Drivers:
Thx for watching my cooler line Fix, done to my 18 year old ML500 - that rubber line WAS original factory part @ 165,000.
This saved me $285 (-$20 I spent) vs buying brand new lines !
I suggest you take a look at your older rubber lines monthly OR at each oil change, when enjoying your older Mercedes.
I believe the line I fixed here was seeping tiny amounts of ATF for probably 2-3 months before I noticed it.
As it was the undercarriage looked very wet with ATF but my Transmission Fluid level was only 8 ounces down.
A little makes a BIG mess, lol.
More frequent fluid level checks are a small price to pay for all the $$$ you save driving an older MUCH cheaper Benz, right ?
PS: Video is 'Dead' from 14:20 to 22:40 so fast forward thru it ok ?
Thank you for this production and I might try it.
Thank you so much! I fixed my ML 320
Great diy! Mainly needed hose sizes. I’m doing my conductor plate / fluid change at the same time so will remove the full assembly. Cheers
Nice ! Yes this is a great money saving fix IF your metal lines are rust free.
On this w163 model mercedes SUV your barbed metal tube that receives the rubber portion is 9.2mm diameter, so use 5/16 rated "OIL TRANSMISSION COOLER HOSE" only - Gates Brand or Continental are best just make sure rated as such. So the Inner Diameter of the 5/16 line is 7.9mm which will make a perfect nice snug fit as it expands slightly over the 9.2mm of the barbed part of the metal line.
Then clamp as shown. Will probably outlast my ML ! I did this job and it works exactly as shown - over a year and 20,000 miles no prob. I just tightened the clamps a month in once for good measure.
Thank you! I got mine fixed based on what you have taught over this video clip. Too bad, this is not allowed me to send you pictures how I have done it.
Hi, do you know the size of the bracket screw that hold down the lines,
Now there is aftermarket fluid lines available on websites like fcp euro or Pelican for around $150, no need to create anything, just order and install
Right now I have to do the same. By the way what oil do you put on the box, if it's not a secret?
No secret. This w163 tranny is called a 722.6 by MB ÷ 5Gtronic in Chrysler Dodge vehicles (designed jointly in Damlierchrysler days).
So I use the less expensive & easier to find ATF÷4 Fully Syn Fluid.
Same exact specs as MB ATF but $5 quart not $20 !
@@hellosunshine1090 Thanks for the quick answer. Now on the important question, how much oil will leak when I remove the hose - all the oil from the box or how much is in the hose?
@@vladislavmihaylov8049 Hi this is me, the author of this video (using a different account to reply), somewhat tardy reply !
Not much oil comes out - just elevate the end of the line higher than the Tranny oil pan when at all possible, to prevent leakage. Make sense ?
This is a good video. Most of the shoot was great, but then you took a break in between getting the repaired hoses to the vehicle, and installing them… what happened?
Has the repair held up under heat and pressure?
Yes indeed. Using the correct rated "Transmission Oil Cooler Hose" is crucial. Nothing else not fuel line which looks similar but can't handle the heat.
I used Gates brand which is Top Quality. Also on these w163 lines I measured the metal barbed end @ 9.2mm.
The 5/16" hose = 8mm so fit was perfect - hose stretches a decent bit & grabs barbs with authority. Cannot be pulled back off except by extreme efforts.
Secure with 2 clamps of correct diameter for your hose installed OD (which was 15.5mm on my ML500),
Place each clamp butted together, going opposite ways.
I found Key type screw clamps to work well. The Fuel Injection ones work well but can slip as they're smooth.
You may find the screw clamps 'bite' hose rubber & stay put better.
Re-check clamp tightness after a few drive / heat cycles.
Some larger auto parts stores like NAPA can 're-rubber' your cooler lines cheaper than new BUT:
- you have to remove entire line
- they may goof & make lines to short OR main difficulty:
- screw up fitting angle / orientation versus installed position.
(They can't tell as vehicle isn't guiding them)
By going DIY using my method you avoid all those drawbacks !
Hope this helps !
David in Texas
Okay I need this broken into “woman” real quick lol. This is the issue I’m thinking my car is having and just doing the research so I know what’s going on and wether I feel like getting dirty or not. Now I’m picking up everything you’re putting down right. My question is, would this leak cause the transmission to feel as if it’s almost slipping? I’ve had one break in a Ford Focus years ago, and I’m getting that similar feeling in my Mercedes clk 320 when trying to get into reverse like the car doesn’t want to move. So it’s not so much a “ oil “ problem right it’s actually the transmission?
Sorry for a late reply (I'm author of this clip using different account to reply. You're probably right. A tiny seep or slight leak from a cooler line wont cause the Tranny on your CLK to slip. It is the same type tranny as we have here in the ML500 (both are 722.6xx Mercedes.
For slipping, are you seeing a 'Check Engine' or other MIL - malfunction indicator light ? If so have a mechanic pull codes from computer. There are Tranny specific codes. Also if fluid is VERY OLD or internal Tranny filter NEVER CHANGED, that could also be the cause of slipping.
There's lots of videos showing how to drop pan & change fluid & filter for Mercedes / Chrysler 722.6XX Tranny.
If you do it yourself especially remember its MUCH cheaper and just as good to use universally available ATF+4 Full Synthetic ATF, versus MB fluid. Cause the ATF+4 is a MOPAR - CHRYSLER fluid made & sold by 40 lube companies the world over, and these awesome trannies were built by 'DamlierChrysler' back in the day lol !
Nice money saving tip !
@@RamTruckSteeringFix Thanks for response, I actually got the issue with the trans not shifting sorted out. So apparently for context what happened was the car knew there was an issue etc. An what it did was went into some failsafe mode, and so it was locking it into first gear. All I needed to do was a reset by like turning it on, but not engine, in park pressing the gas into a second click or something and hold. Then give it a minute and it basically gave it default trans settings. I've not driven it far but a few times to grocery store etc just to move it and what not. ( I don't leave home often ) and it seems to be fine. The leak is still there and I have to replace a switch bored thing but it seems to be that issue was handled atleast.
Do all Mercedes have these these coolers?
To my knowledge, yes. They're built into the radiator. Some also have a Power Steering cooler built into radiator as well. Cheers - David
Please can you come and fix mine
Sure, I'll be right over. Which house are you ? LOL