what dot brake fluid should i be using

[shepped0]

Hi All

Looking to change my brake fluid on my mk1 and ashamed to say i have never done it in all the years i have owned it. Question is what grade type of fluid should i be using ie Dot 3 or 4 or something else. Believe also i may have a fluid leak near the master cylinder so plan to check them all in the new year and start by getting the correct fluid
thank you

[shepped0]

Anyone ?

[Soren]

Hi
I youse Dot 5,1 in min,
Søren

[Altransit]

Dot 4 should be fine in an older braking system.

[shepped0]

Thanks Guys for your replies DOT 4 it is then i have a horrible feeling i have fluid coming from my master cylinder....I know i can get a refurb kit for it but what are the chances of getting a replacement part i am guessing zero?

[Altransit]

If you can find any numbers stamped on the unit, it's worth a try googling that number.

[shepped0]

Thanks again going the attempt in the new year

[Ollie]

if you need a master cyl I find Autodoc have all sorts of random stuff, and motomobil will prob have something at a price. in Uk contract auto engineering in stourport have just refurbed my mk2 cyl with a stainless sleeve.

Ollie

[shepped0]

if you need a master cyl I find Autodoc have all sorts of random stuff, and motomobil will prob have something at a price. in Uk contract auto engineering in stourport have just refurbed my mk2 cyl with a stainless sleeve.

Ollie

Thanks Ollie used motomobil in the past for brake stuff