cav551:
I have fitted two different specification exhaust silencers so far. The first made no difference and I am waiting for drivers’ reports on the second. This is very frustrating since the noise appears to occur at random. There is no consistency to pressure when it happens. As soon as I think we have a cure, in a few days I am proved wrong.
Are you going through Haldex technical? They will come and stick a new valve on for you if you’re still having problems after changing the silencers