Porsche Bleed nipple seized
Discussion
Folks,
My Cayenne T is in for its service. The engineer has changed the brake oil in 3 of the 4 corners. OPC called and said the following, "the bleed nipple that may snap if we attempt to carry out the brake fluid change on this wheel". They would need to send it away at a cost of £500 if it needs to be fixed if snapped or £1300 to replace the calliper. He said they can leave it to the next service i.e. dont do an oil change on it. Surely not addressing the seized nipple for 2 years is just going to make it worse.
Supposedly dirt, grime and rust has seized it and it is quiet common for this to happen.
The service rep sent me a picture of another porsche to show what he is talking about. This is not my nipple!
I am lost here. What do you folks recommend
It depends how bad it is. If they haven't messed with it yet, I'd take it to someone who can try heat (an induction heater is what I'd use) and penertrating oil to get it loose, on the understanding that it may well shear and need the caliper removing to be drilled out, though that would be a straightforward task for a small engineering place. I'd rather have it jigged up straight and do it on a pillar drill etc than try it freehand on the car.
Either way, the prices you've been given are ludicrous for the task. Go somewhere else.
Either way, the prices you've been given are ludicrous for the task. Go somewhere else.
Try giving it a slight tighten first with a 1/4" drive long reach socket (any bigger and you loose the feel) this may break the corrosion in the threads, if you get a bit movement gently work it (slacken then tighten) and use some penetrating fluid, take your time and it'll come out.
Cimaguy said:
okay, might give it a go. If it snaps I suspect the car will not be drivable right? Do I need to then call a mobile mechanic to remove the part so I can send it to a repair shop.
That would depend on if you managed to loosen/rotate it before it shears.If it snaps off without moving at all, it should be safe to drive providing the nipple breaks off flush with the caliper body.
Better still this … Arctic Hayes
https://amzn.eu/d/gl9a9To
One review cites using it to free his nipple.
https://amzn.eu/d/gl9a9To
One review cites using it to free his nipple.
This is the sort of job that any garage that does MOT work will have come across a hundred times.
Back in my day it would have been warmed up with an oxy-acetylene torch and carefully removed.
Nowadays an induction heater will warm it up, may need a couple of goes but it will come out.
If it was really corroded in, the threads may come out with the screw but a timesert repair would fix it.
Should take less than an hour to remove replace and bleed.
Back in my day it would have been warmed up with an oxy-acetylene torch and carefully removed.
Nowadays an induction heater will warm it up, may need a couple of goes but it will come out.
If it was really corroded in, the threads may come out with the screw but a timesert repair would fix it.
Should take less than an hour to remove replace and bleed.
JohnnyUK said:
I don't know how old your Cayenne is, but my 7 year old Audi had this issue and the main dealer said it was their issue to sort, as it should not have happened.
Just a thought...
A very good thought and well done Audi. Just a thought...
The Cayenne T hasn’t been around for very long has it. Is this the 2 year service? ..in which case, should the manufacturer have supplied a part suitable for lasting longer than the manufacturers warranty.
It is really annoying that Porsche let themselves down with these niggly little issues.
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