Fuel filter change question.
Discussion
I reckon, given an occasional hesitancy low down the rev range and the likely vintage of the current part fitted, the Audi's fuel filter wants changing.
But I find myself wondering about the best way to do it. I imagine I'll want to have had the ignition off for some time, so that there isn't still a load of pressure in the system. But will I need to completely depressurise the system before taking the old filter out, and if so, how? Should I bother disconnecting the negative battery lead?
Or will I get away with changing it - I don't plan to take very long with the pipes exposed! - by simply taking the old one out without any prior preparation?
It's an inline filter near the tank on a 1996 A4 2.6, if it matters much.
Speedy response appreciated, I could get this done before it starts getting dark
But I find myself wondering about the best way to do it. I imagine I'll want to have had the ignition off for some time, so that there isn't still a load of pressure in the system. But will I need to completely depressurise the system before taking the old filter out, and if so, how? Should I bother disconnecting the negative battery lead?
Or will I get away with changing it - I don't plan to take very long with the pipes exposed! - by simply taking the old one out without any prior preparation?
It's an inline filter near the tank on a 1996 A4 2.6, if it matters much.
Speedy response appreciated, I could get this done before it starts getting dark
Length of ignition off won't matter. Not really a lot spurts out anyway, the biggest load is in the filter itself.
If you can, take out the fuse for the pump itself and let the engine stall. Easiest way of de-pressurising the system.
If you can, take out the fuse for the pump itself and let the engine stall. Easiest way of de-pressurising the system.
Edited by Astra Dan on Saturday 18th June 18:34
Edited by Astra Dan on Saturday 18th June 18:34
)Right, thanks guys. I think I might try that depressurising "method" 
should I just get the car running, then pull the fuse, or remove it first then try and start it? Since I don't think the car will empty the lines that quickly at idle, I guess I can just start it without the fuse?
I shan't be impressed if the clip dies, I'll be gentle with that as I have no replacement
Anything else I should watch out for?
should I just get the car running, then pull the fuse, or remove it first then try and start it? Since I don't think the car will empty the lines that quickly at idle, I guess I can just start it without the fuse?I shan't be impressed if the clip dies, I'll be gentle with that as I have no replacement
Anything else I should watch out for?
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