Since I've owned the car the servo on my 306 hdi has been leaking on and off when you lift your foot off. It sometimes continues hissing at you though it never looses vacuum completely as I'm now selling the car to another forum member it's time to sort it.

Not sure if the servo is the same on a 6 as a d-turbo model HDI phase 3?

Worth a punt .

Will up a wanted up on 306oc.com as well.

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Black power baby! SUUUUUPERCHARGED
Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p
12x 306's owned so far

Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist.
Pug planet / Citroen Lexia diagnostics / code reads available.