A different EGR setup was used and a throttle body was fitted which wasn't there on the 45bhp.
Unfortunately, these small additions reduced the amount of space in the engine bay even further.
Space was tight before but in previous diesel model, everything in the way was a soft pipe.
These were easy to remove and get out of the way so the airbox lid could come out.
On the 54bhp model, you had the intercooler and the throttle body in the way, neither were moving.
However, luckily, there is just enough room to remove the air box lid still.
There's the easy way and the smart main dealer way. My way takes less than 10 minutes.
The way that the smart dealers do it will take a lot of work and probably 45 minutes.