Under-carriage Brakes Master brake cylinder and parts

Non returnvalve brake servo

OEM:191 611 933
model: Bus 08/70-

update sync 19/04/2018

Work on your safety! This little valve keeps the vacuum to your servo when your engine stalls, so your servo keeps working (and let you brake normally) when your engine stalls… You'll find this valve between your vacuum line right behind your inlet manifolds. Make sure yours is in place and works fine or replace with BBT’s perfect reproduction.

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