Is it worth changing the engine in my Audi to a diesel one?

Hi Dermot,

If you mean actually physically swapping out the engine and plumbing in a diesel then I wouldn't recommend it. Diesel engines are much heavier than their petrol counterparts and most car makers tweak the suspension, brakes and steering to allow for that fact. Putting a diesel lump in where a petrol one was could upset that delicate balance. Also, it's an enormous amount of expense and hassle to do so, when you could just trade in for a similar model with a factory-fit diesel.