Brake linkage lenth?

How long should the linkage be that attaches to the brake pedal to the rest of the brake linkage? I've look in the Haynes and that gives me 2 options depending on chassis number but neither of them look anything like my chassis number?

194mm to chassis number 175 3 500 000 / 535 2 500 000.
172mm from chassis number 176 3 000 001 / 536 2 000 001.

Where as my chassis number is like WVWZZZ17ZDW******.

This is the linkage, how long does it need to be?


 

The chassis numbers quoted are the old style 10 digit ones. The slash is because the first 10 relates to the Golf, and the next 10 relates to the Scirocco.

Your chassis number is the newer style 17 digit.

Basically, its 1975 models which are slightly different, 1976 models onwards are the same. And yours is a 1983 model (from the D year code).

For your car, 172mm.

Great stuff, thank you!

Do I need to measure this from the center of the holes or the outer edges of the holes? As the Haynes isn't that clear, I guessed the center of the holes but there isn't much thread holding the end on. Where as if I measure from the outer edges of the holes the thread is fully used on the adjustable end.

Seems nobody else has answered, so I'll say: I honestly don't know. I'd set it for a reasonable mid-position then once the brake linkage is all completely installed, do a check that the linkage allows full & free travel of the entire range of brake pedal movement.

Obviously the linkage basically sets the pedal height, so its not a critical dimension but there's an acceptable range there (so long as it allows full & free movement) and brake pedal position will also need to relate to clutch pedal height (I think there's a specification that they're 20mm different or something?) and you'd also need enough clutch pedal movement to fully disengage the clutch.

I'd not worry about it too much, given it can be later adjusted if needs be.

Ok, thanks again!