You're commenting on a thread where someone advocates for using cheap and unreliable methods for replacing critical hoses. Are you really surprised to find that they are also recommending putting silicone on their bad repair?

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Onus probandi incumbit ei qui dicit, non ei qui negat

I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 147k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]

No one who has done what I did has had issues with the method.

The persons that reported issues with the method of only replacing the hose were persons who bought the car set up like that and did not change what the previous owner did. They left it there till it failed.

The below thread was from 11-11-2007. I was vilified by the so-called experts back in that day but as time passed what I did gained some acceptance, and no one has said my method has not worked for them. In particular since sources of the 15mm ID hose that is made for the job was found.

Although I have updated the hose and clamps to better ones on mine, I have 17 years of history with the method of only changing the hose. Since that time people have been saying their aftermarket hoses are not lasting.

The other issue is these hoses are becoming unavailable..

Also, in the thread are multiple other methods.

Cheap oil cooler hose replacement.

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84 300D, 82 Volvo 244Gl Diesel

This "cheap and unreliable method for replacing critical hoses" has worked for me for 15 years now. Cooler lines that go over the engine mount arm are from a 76 300D, FYI.

Even though they're fine at the time, I replace it at 10 years for age and upgraded the clamps.

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Who makes the blue hose and what inside diameter is it.

If the correct hose for the job is use, I can't believe that people think the hose is just going to slip out from under 2 tightened hose clamps on each end of the hose. And there is that advantage of not having to remove the hoses from the oil cooler and having that chance of stripping the threads on the aluminum oil cooler nipple.

With critical parts becoming no longer available in time there may be no choice but to find other means.

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84 300D, 82 Volvo 244Gl Diesel

Removing the hoses from the oil cooler often results in stripping threads off of the aluminum oil cooler nipples.

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84 300D, 82 Volvo 244Gl Diesel

I've known several people who have driven for decades without a seatbelt. But I'm not going to be one of them.

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Onus probandi incumbit ei qui dicit, non ei qui negat

I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 147k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]

Nice that you admit people can have a personal choice.

What do seat belts and oil cooler hoses have in common?

Next is the comparison is between not doing something and replacing the hoses only which is doing something.

Persons that lack the skill and confidence to just replace the hoses should not do it.

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84 300D, 82 Volvo 244Gl Diesel

Both are critical components which are necessary for continued existence of the more valuable component: the engine or the driver. Why not do something right rather than trying to reinvent something less reliable?

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Onus probandi incumbit ei qui dicit, non ei qui negat

I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 147k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]

The driver is not a component of the car no more than a Cowboy is part of horse he rides.

Reliability. When back when I started my thread, and I personally did the hose only change I read persons threads on that. The persons that experienced failures of the hose only change were persons that bought a car that the previous owner had done drove it like that till it failed.

They had no idea what hose the past owner used or did I read they did not 2 hose clamps per hose end. Also, all said the hose change was old.

Next is if you do an internet search for add on oil coolers the majority of them are made to use hose you slip over nipple and used adjustable clamps. I mean you will even see kits with the hose and clamps with them.

With long enough use the stock hoses fail and the aftermarket hoses seem to fail sooner. I have read instances on the various Mercedes forums where they persons knew their hose was seeping and did nothing about it and the hose failed and a few had catastrophic engine damage.

So, the camp on oil cooler hose is not immune from the same longevity issues. When you see the hose seeping just like the factory-made hoses change them. It is so cheap and easy to do that there is no excuse for waiting and no need to worry about stripping the threads on oil cooler nipples.

The other oil cooler hose failure is a collapsed motor mount causing the power steering belt to cut through the hose. That can happen to any hose in the way.

Changing the hose only allows you to make the hoses longer and keep the hoses further away from the power steering belt.

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84 300D, 82 Volvo 244Gl Diesel

Parker 836
https://ph.parker.com/us/en/product-list/push-lok-plus-high-temperature-multipurpose-hose-836


For the 76 300D hoses, 1/2 and 5/8

Is this what you used?

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84 300D, 82 Volvo 244Gl Diesel