do you need to know what the engine looks like in the car or out if its out of the car and no covers on top the L series has a alley cover and the injectors are at towards the front,the td4 engine is very black on top and plastic top cover and the injectors are towards the back also the L series oil filter is on the bottom and the td4 oil filter is at the front half way up black top 36mm nut 2 undo ok