99 c250 td brake pipe gauge?

[Ad777]

Hi all, have to replace both rear brake pipes on above car, can someone please tell me what gauge of pipe I shoulď get please? Factors had a roll of 3/8.. but have seen a few mercedes adverts saying 3/16. If someone could confirm right size for the car be very grateful, cheers.

 

[EmilysDad]

Definitely wasn't 3/8" .... that equates to around 9.5mm

 

[ajlsl600]

3/16

 

[ajlsl600]

Never seen 3/8 on car. Only variation I know of was citreon had an odd size, smaller I believe

 

[EmilysDad]

You need to make sure you get the correct fitting into the calliper or flexi. Unless you have a load to do, you're better off removing the pipes you want to replace & take them to a proper local motorfactor. They'll have them made in minutes & won't be expensive.

 

[EmilysDad]

Just thought .... 3/8" would be the threaded fittings ... not the pipe. That would make sense.

 

[Ad777]

Ahh..that's where I have got confused! Thank you all very much

 

[LostKiwi]

Just be careful - the fittings can also be 10mm.

 

[Ad777]

Ok, thanks, I will double check.

 

[ajlsl600]

If it don't screw in freely likely wrong thread. metric one looks finer. don't force it.

 

[Ad777]

We have investigated and it definitely metric. We should be good to go for the weekend. Thank you all for the feedback!