At last the split hose what was responsible for letting the fumes in the cabin has now finally been repaired. Apparently it’s some sort of boost hose. Now this hose has been replaced my Signum’s a different car…loads of extra power, a lot more responsive. I was impressed anyway but now it’s just so much different. Handy for someone to know in the future perhaps, fumes in the cab, down on power, economy etc? Check out your boost hose (at least that’s what I got told it’s called). You experts out there may well have another name for it!