It's had full service history from new from
dealership due in 4000 miles and its had a gearbox oil and filter service the company that done it done a full diagnostic check on it and nothing came up ,I have put about 34 psi in tyres even though it should be
lower, it has a slight exhaust leak in middle pipe after the CAT on the silencer but it's still has the same mpg when it wasn't so I don't know if that would be any different getting that repaired or replaced, there is also a ticking noise when car is stationary and at idle, about every 4 seconds there would be a noise that sounds like a woodpecker tapping on my engine it doesn't sound like tappets sticking, is this normal and could that be a cause of bad mpg?
Thanks