Now and again my 280 acts as if there is no turbo at all below 3k rpm and sometimes its fine. Top end power seems ok but low down, when it has a funny turn, its incredibly poor and laggy lower in the rpm range and sounds a bit "throatier" until it hits 3k ish rpm and comes on boost. Now it hasn't always been like this and I'm absolutely convinced that there's a tinkly rattle just as it comes on boost and it whistles more than it used to.
I just wanted to get an idea of what it could be before its in for this next week. (I suspect a faulty turbo or diverter valve), car is totally standard has covered 11k miles on a 2015 plate seems to run fine otherwise. Temperature makes no difference and its only been run on v power, driver profile settings make no change to the issue.
Anyone else had and solved a similar issue?
I just wanted to get an idea of what it could be before its in for this next week. (I suspect a faulty turbo or diverter valve), car is totally standard has covered 11k miles on a 2015 plate seems to run fine otherwise. Temperature makes no difference and its only been run on v power, driver profile settings make no change to the issue.
Anyone else had and solved a similar issue?