[Page 2] problème frein vacuum pump. Ce matin je n'ai plus d'aide de la vacuum pump pour freiner, la lumière (!) est allumée. On me parle de 856$ @1124$ pour la pièce chez le conscessionnaire. Peut-être que...
That pump has been subject to two recalls - yours looks like it hasn't been replaced so I would definitely get onto them to see if it has been replaced in the last recall - if not they should be doing it free of charge!
If they won't, you might be able to fix it. One of the problems the recall addressed is that the exhaust port of the pump is prone to being blocked up by dirt and mud from the road. A vacuum pump with its exhaust port blocked will of course get noisy. So check and clean that if they won't replace it under recall.
Tried again, no joy. In fact after the airbag recall, which was an utter farce, I'm happier sorting it myself. Main stealers are a total pain. Got a replacement part for £30 all in. A UP28 off a 2016 Vauxhall Mokka. I probably won't fit it it straight away but have it stashed so it's there just in case. I'm also going to fabricate a bracket like the one on the link earlier in the thread. I'll update when fitted, eventually, lol. Thanks again!
UP28 brake vacuum pump installed this evening as the endless buzzing from the old unit was driving me nuts, especially at the McDonalds drive-through, lol! It's like a different car now, well you know what I mean.
So was your brake assistance not working properly or was it just taking a long time for the pump to top up the vacuum after each pedal press ? Mine is still working "OK" but now you bring this up it does seem to take a bit longer for the pump to cut off than it used to after each pedal press. Hmm...
Did you take any photos of the new pump fitted ? Is it a good fit ? I assume you needed to splice the wiring to the old connector ?
I think the usual failure mode is that the outlet gets blocked with muck, making it less efficient (so runs for longer). Over time, it wears out the pump (gets noisier), until it completely fails. (My failure mode was different, caused by a sheared bolt.)
My cable-tie-and-jubilee-clip bodge still stands. I put the subframe mount back on and attached the new pump to that, as it had some rubber isolation, and the two holes lined up nicely with the mounts on the Hella UP28 I used. See pic (click to embiggen):