• Hey Guest💡👉 We have recently launched our new Dealer Directory and review service Find out more now
Jan 4, 2026
4
0
I think my fuel filter needs replacing on my 2013 Leon 2.0 tdi, can’t see it as having been done in service history and it’s at 145k.
My question is do I need to do anything particular to bleed the system of air?
I’ve tried to search online but nothing gives me a definitive answer, something is suggested then someone else says no do this, also can’t find anything specific for my model year.
Thanks
 
Yes, you should prime your fuel system following fitting a new filter. Need to be done via diagnostic interface. VCDS etc..
 
Yes, you should prime your fuel system following fitting a new filter. Need to be done via diagnostic interface. VCDS etc..
So you’re saying it needs to be done by a mechanic? I’d rather not have to pay someone to do a 10min job, is there no way of doing it manually? I’ve seen some suggestions that you turn the ignition on and off a few times, enough to let the fuel pump push fuel through and disperse the air
 
Just butting in, no you dont need a mechanic just a diagnostic tool that allows you to do stuff to the car.

vcds, obd11, Carista and multiple other ones as well, lets you check out DTC Codes, Reset Service Warnings as well as changing the setup on your car and doing stuff like this.

I will let @SuperV8 answer about your suggestion.
 
Just butting in, no you dont need a mechanic just a diagnostic tool that allows you to do stuff to the car.

vcds, obd11, Carista and multiple other ones as well, lets you check out DTC Codes, Reset Service Warnings as well as changing the setup on your car and doing stuff like this.

I will let @SuperV8 answer about your suggestion.
Ah I thought VCDS was the specific tool needed and I don’t have the need for that type. I do have a diagnostic tool - TopDon CarPal - but doesn’t seem to allow me to do much, 6 basic functions really