I have bmw 320i 1988 and i want to ask how to know that i need to change the fuel filter?

i have bmw 320i 6 in-line 1988 auto transmission and i want to know if i have to change the fuel filter because i smell gas near the motor and i have low horse power i change the air filter with cold air intake and change the plugs with 4 heads plugs and nothing change on the power i want to help me on this and see how could i do to fix it . and i want to know if should i to clean the injectors

I have bmw 320i 1988 and i want to ask how to know that i need to change the fuel filter?pc security

Find %26 fix the leak first. raw gas %26 hot engine parts don't mix well

I have bmw 320i 1988 and i want to ask how to know that i need to change the fuel filter?symantic

If you are smelling gas, you have a leak. Check around the injectors after the motor has been running and been driven. You should be able to see a visible means of the leak. I have an 87 Accord that was doing the same thing and I had 2 injector seals leaking. I would check this first. If you don't have any leaks that you see, then start checking the fuel lines and seals around the injection system. That smell is coming from somewhere. This would also account for the performance being off and I bet your mileage is down as well.
Here is a photo of the fuel filter for the 1988 BMW 325i: http://67.129.153.73/CGv2Production/Pict...