looks like one, do you fill the oil from a large pipe that comes up from the left bottom of the engine? not sure if the diesel is the same as the petrol which i have, but the dip stick also comes from a thinner pipe coming all the way up from the right of the engine (orientation as in the picture ) should also have a little plaque on the tappet cover with hot or cold valve clearance. tthe thermostat should be in the front middle of the engine , with a pipe exiting straight up and one to the left
edit: also tappet cover has three dome nuts often with a rubber washer type thing under them running down the centre to hold it in place