I've had my V280 for about a year or so now (Love it loads). A couple of months ago I thought it started to misfire so changed plugs leads etc. That didn't reslove the issue which was getting much worse, especially when wet. The car then got very sluggish in low revs, but improved if you accelerated hard. This got worse and worse and now will not run at all. It will start and idle for maybe a minute before cutting out. If you throttle at all, it will just stop.
I've changed the following
lugs,leads, MAF, Coil pack, air filter, fuel filter.
Oil is clean at the dipstick. No water loss.
I looked at the crank shaft sensor - very dirty so I cleaned it up..
I removed the lambda sensor to check for clogged cat..
As you are looking at the engine, the lever on the lefthand side of the block that moves with the throttle seams to be applying and staying applied - not sure what that is though???
If anyone has a clue, I'd be ever so grateful.