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VW B5 Passat TDIs This is a general discussion about B5 Passat(>98 (2004-2005 in North America)). Non TDI related postings will be moved or removed.

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Old September 26th, 2017, 12:14   #1
grNozzle
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Default 2005 Passat TDI fuel filter changed, no start now

Must be air in the system - I've filled the new filter with fuel and now need to bleed the air at the injectors.
Where do I do that? I can see no steel fuel lines running to a nut to loosen as in some videos online.
Thanks
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Old September 26th, 2017, 13:13   #2
QuickTD
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There is no way to bleed the injectors. You just have to crank until the air is purged. It may take a while. Make sure the filter is full and cycle the key a few times to run the lift pump. Then crank 10-15 seconds at a time until it starts.
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Old September 26th, 2017, 13:46   #3
Windex
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Like QuickTD says - there is no bleed screw. Make sure the filter is completely full, cycle the ignition key a dozen times or more (assuming your lift pump is working - can you hear it when you cycle the key?).
Then crank as described above. For every 15 sec cranking, I would wait another 30 sec between to let the starter cool down.

Keep at it, she'll start eventually.
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Old September 30th, 2017, 08:10   #4
owr084
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Did you make sure you replaced the two o-rings on the T-fitting? Make sure the T-fitting is secure and properly seated? You can tear the o-rings if you don't seat it properly. How old is the T-fitting? They do get brittle and crack.

If that is all fine, then as the others have said, just keep cranking. It's counter intuitive, especially when the warning lights come on...
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Old September 30th, 2017, 11:35   #5
leicaman
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Yes make sure the filter is full. I just replaced my fuel filter and the car has been running fine since. I caught a bad batch of fuel it seems. I was at my personal limit, so it was time (I put a new fuel filter in each fall). I went OEM this time as I really like the color coded, idiot proof (for my skill level), o rings for the thermostatic T.
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Last edited by leicaman; October 2nd, 2017 at 16:03. Reason: clarity
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Old September 30th, 2017, 12:02   #6
leobg
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I had that happen to me first time I changed the filter. Took a lot of cranking but finally started. Don’t try to bleed anything just follow the advice given above, she’ll start. Don’t worry about STOP engine immediately and other messages you will see on the cluster. Give starter a break after each crank


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Old October 1st, 2017, 19:04   #7
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Pull the glow plugs and crank until you see a mist of fuel coming from all 4 of the the glow plug holes. Easier and faster to crank that way. Put the plugs back in and presto!
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Old October 2nd, 2017, 09:01   #8
imo000
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Quote:
Originally Posted by JETaah View Post
Pull the glow plugs and crank until you see a mist of fuel coming from all 4 of the the glow plug holes. Easier and faster to crank that way. Put the plugs back in and presto!
There is a chance the plug end can break off during removal. I would't touch them just for this reason.
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Old October 2nd, 2017, 10:29   #9
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Quote:
Originally Posted by imo000 View Post
There is a chance the plug end can break off during removal. I would't touch them just for this reason.
I find that they tend to break off if they've are already burned out and have been surrounded by carbon. I think its better to take them out before you need to...then change them to the updated configuration.
Whatever...sure works for me and is much easier on the battery and starter when doing a bleed. There is no sense in compressing the air until you have fuel .
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