Got my S60 auto back from the garage yesterday - gearchanges had become intermittently quite snatchy, and a couple of times it seemed to slip momentarily into neutral. All fixed under warranty, but when I asked what they had done, they said they had changed the "control valve unit" (ok, seemed reasonable), which uses "gases produced by the gearbox oil". Huh? Is this this:
a) Don't baffle the customer with technical details he won't understand;
b) Reception guy didn't understand what the mechanic told him, so make something up for the customer;
c) Clever autobox engineering I've never come across before?
Ok, perhaps all boxes work this way, but can anyone enlighten me as to what they were trying to describe?
Tim