Ah .. good old Renault.
To replace the air filter you need to remove the battery.
To replace the headlights you need to either remove the bumper, remove the front suspension or employ a 6 year old child
The replace the glow plugs - 3 of them are (relatively easy), the 4th you need to get the 6 year old child again or remove the engine
The replace the fuel filter you need to remove the front tyres
The list goes on and on ...