W202 C250 TD leak off line problem - what's the diameter?

[neilrr]

The leak off lines on my car are popping off with really annoying frequency, three times in the last week, once on a trip to Bristol.

The boys on Biopowered - vegetable oil and biodiesel forum - Index say nylon tubing is 100% bulletproof & once on is a bitch to try to remove so little chance of it coming off.

I bought 3mm nylon line after being told by a local business that sells this stuff (but didn't have any in stock) that I wanted 3mm ID but despite heating the holy **** out of it I can't get it to fit on the nipples. Don't really want to accumulate a collection of nylon pipe of various diameters, so, can anyone definitively tell me what interior diameter the original MB leak off line is?

TIA.

 

[SilverSaloon]

hi

no idea but i know the 'vauxhall' leak off pipe that halfords sells fits my W124 perfectly.

 

[Dieselman]

It is 3mm ID nominal, but obviously rubber pipe allows some stretching to fit over the barb.

 

[neilrr]

DM,

Do you know of any car manufacturer that sells 3mm ID BD100 resistant leak off line?

TIA

 

[neilrr]

hi

no idea but i know the 'vauxhall' leak off pipe that halfords sells fits my W124 perfectly.

Any idea if that's BD100 resistant?

 

[SilverSaloon]

Any idea if that's BD100 resistant?

dont know but its holding up in my 100% WVO car well enough

 

[neilrr]

This the one?

Halfords | Halfords Diesel Spill Off Pipe - Vauxhall

 

[Dieselman]

I would be surprised if the Halfords stuff is anything other than normal nitrile rubber.

You need Viton pipe.

Try 3.2mm

VITON RUBBER TUBE,3.2MMID X 6.2MMOD, 4MMID X 6MMOD, 6MMID X 8MMOD,6MMID X 12MMOD | eBay

Viton Rubber Tube | TYM Seals and Gaskets Ltd

 

[neilrr]

Thanks DM, I ordered a mete of 3.2 x 6.2 viton tube from your link above.

I hope that'll take care of this issue.

 

[Dieselman]

Will a metre be enough? It's definitely not for a OM606.

 

[neilrr]

I think so. We'll see soon enough.

 

[atlantimd]

I am having same problem and fitted allnew 3.2mmand its sucking air into the system and fuel running back to the tank. I have tried even cable tieing the pipes but still no goo. Running on normal diesel. I amgoing to try the vauxhall pipe tomorrow

 

[neilrr]

What's wrong with MB leak off line?

If you are running normal diesel it's the most likely to work, isn't it?

 

[atlantimd]

You can only use MB genuine pipe other 3.2mm Leaks

 

[Dieselman]

You can only use MB genuine pipe other 3.2mm Leaks

<snigger>...

Any decent leak off pipe will fit and work fine.