On my ten year old Passat to cure a spongy brake pedal I have fitted a new master cylinder and still have spongy brakes. The hoses seem okay. The system is dual circuit with a mechanical load valve for the rear brakes. I have used a Gunson power bleed kit connected to a spare wheel tyre. My order of bleeding was rear offside then rear nearside then front offside then front nearside. Any suggestions as to what might be going wrong and how to firm up the pedal would be very gratefully received.
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sounds like your doing all the right stuff
i had the same problem with my golf..the easy bleed wasnt getting all the air out, i bled it about 4 times each time it got better
in the end i borrowed a elec pressure bleeder from a garage and that got alot more air out
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That older model Passat had a really soft pedal as standard. In the mid 90's, my colleage and I swapped cars (my '93 Audi 80 TDi, his a '94 Passat TDi estate) for a weekend, and the Passat's long travel, soft pedal frightened the life out of me initially.
When it came to the end of the company lease, I bought it for my wife. I had to bleed the brakes once after changing the front hoses - the brake pedal was just as soft afterwards, but it would still lock the wheels in the dry...
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