This is a 2007 Vauxhall Antara 2.0 L CDTI.
Four months ago I took my car to a local garage chain to do some tyre adjustments and thought I might as well let them change my oil and oil filter. All this was done and I didn't check the works. Two days ago the car broke down. There was loads of white smoke behind me when this happened. I was doing a 10 mile trip and as I went in 3rd gear to about 4.5k rpm something 'blew'. I noticed some coolant splashed near the expansion bottle and a few drips underneath the engine. At the back of the exhaust it was wet and oily.
Had to get it recovered because it wouldn't start anymore and has no compression. Had a quick check and can confirm that there is no coolant in the oil and no oil in the coolant, as I suspected a blown head gasket first. Only thing I can also confirm is there is a lot of oil in the car. See the picture below.
Is it possible that they filled my car and forgot to drain it before? It seems it's double the amount that it was supposed to be .. :(
In big need of the car, got a baby on the way in a few weeks time. Thanks for taking your time to read all of this!