mine are i believe original. it would really stink if they failed. is there anything else in that neighborhood that i should go ahead and change?

190d

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Ben
1987 190d 2.5Turbo

It's a good idea to replace all rubber hoses at some point as they are probably and most likely original.

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1976 Mercedes 240D (Sold)
1985 Mercedes 300D Turbo Diesel: 500,000KM
1986 Mercedes 300E (Sold)
1988 Mercedes 300E (Sold)
2002 Mercedes C240 (Sold)
2008 Mercedes C350 4matic

A great site for purchasing industrial rubber products!

Industrial Rubber

Check your hard lines, along their length, for any weeping. Now would be a good time to replace the clamps holding them. Especially if any are starting to deteriorate.

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Sam

84 300SD 350K+ miles ( Blue Belle )

Instead of buying cheap replacements of questionable quality, remove your old ones and cut off the hydraulic swages, clamp on some fresh AT cooler rubber line onto the old end nipples with oetiker clamps. Or have then swaged at a hydraulics shop. I have done the rubber line and oetiker clamps on a few cars till now.

work perfect, slide on the old spring tube on them to make them look OE.

they come out cheaper.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

As said previously the clamps that hold the steel lines steady often have the rubber part fall apart and vibration of metal on metal cuts a hole int the tubing. It happened to me.

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84 300D, 82 Volvo 244Gl Diesel

bending a new set of those from some new tube stock shouldnt take much effort.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Something to remember when reusing metal ends and replacing rubber hose.

The metal ends need to have barbs if you are going to use a band clamp.

Non barbed fittings need to have a captive ferrule otherwise the hose can blow off the fitting. A captive ferrule is crimped to the metal fitting and hose preventing blow off.

That's a dangerous question.

Are you married? If not, I recommend everything.

If you are, everything. Just be discrete about all those boxes coming in

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-Typos courtesy of my mobile phone.

In a completely other brand of car I added a universal style transmission cooler and was extremely bored so I made a lineset from tubing and short sections of hose to connect everything, I did a "start" of a bubble flare on the ends just to swell up the ends like I see on most low pressure lines, slipped on the rubber hose and clamped it.

That lineset has been dry for a year now. I think the ferrule will also do the same purpose.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

The start of a bubble ( ISO ) flare has the same effect as a barb, I do the same on lines.

If you are speaking of the tubing that is one way. I chose to cut the tubing and slide rubber oil cooler hose over the tubing and clamp it. See attached pic.

Some have used a Union with compression fittings (I have seen them at Auto Zone).

Since it is the Transmission Cooler line it is a low pressure line.

Attached Thumbnails

   

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84 300D, 82 Volvo 244Gl Diesel

The German Cohline part is $19/each. Buy two,install it, top off the fluid and call it a day.

https://www.pelicanparts.com/cgi-bin/ksearch/PEL_search_2016.cgi?command=DWsearch&description=transmission+cooler+line

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1976 Mercedes 240D (Sold)
1985 Mercedes 300D Turbo Diesel: 500,000KM
1986 Mercedes 300E (Sold)
1988 Mercedes 300E (Sold)
2002 Mercedes C240 (Sold)
2008 Mercedes C350 4matic

A great site for purchasing industrial rubber products!

Industrial Rubber

That pic doesnt bid well, Im thinking the line is not flared/swollen at the edges as we discussed. This type of repair blows apart. The compression union is a perfectly good repair here.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Yep. This is OK for a get me home repair ( especially with 2 clamps per side ) , but over time the rubber will compress, clamping force be lost and hose can come off. I've had crimped on hoses become loose from the metal and leak but the barb keeps things from coming apart.

Another issue with a straight cut metal tube is the tubes end can cut through the hose's inner liner resulting in a leak especially of the hose is at a flex point.