Hi, long time reader, first time poster.
I have a problem with my 2009 1.9 BLS tdi, where occasionally it takes 20 or so seconds to start in the morning. Initially there seems to be no combustion, then after a few seconds sounds like it wants to go, then finally it starts, but fires up perfectly, with no roughness, spluttering or smoke, instant perfect idle. Normally it starts just by touching key, including if I shut it off immediately after having the issue. The engine runs perfect, smooth, no smoke, basically perfect, but does have 140000kms.
It seems to only happen if left for a few days, maybe once a week, but the problem seems to be more often now the temperature has dropped, although it’s was still doing it when around 16 degrees. I thought it could be the battery as seems to happen less with long drives (and battery was getting old), so have replaced it, but it happened again, although was quicker to start this time (faster turnover?).
I get no errors using VCDS.
I’ve tried running the fuel pump via VCDS for 30 seconds and made no difference.
I’m wondering if it could be a sensor failing?
Does anyone have any ideas? Are there any values I should compare with VCDS when it’s starts vs when it won’t?
Thanks for your help.
I have a problem with my 2009 1.9 BLS tdi, where occasionally it takes 20 or so seconds to start in the morning. Initially there seems to be no combustion, then after a few seconds sounds like it wants to go, then finally it starts, but fires up perfectly, with no roughness, spluttering or smoke, instant perfect idle. Normally it starts just by touching key, including if I shut it off immediately after having the issue. The engine runs perfect, smooth, no smoke, basically perfect, but does have 140000kms.
It seems to only happen if left for a few days, maybe once a week, but the problem seems to be more often now the temperature has dropped, although it’s was still doing it when around 16 degrees. I thought it could be the battery as seems to happen less with long drives (and battery was getting old), so have replaced it, but it happened again, although was quicker to start this time (faster turnover?).
I get no errors using VCDS.
I’ve tried running the fuel pump via VCDS for 30 seconds and made no difference.
I’m wondering if it could be a sensor failing?
Does anyone have any ideas? Are there any values I should compare with VCDS when it’s starts vs when it won’t?
Thanks for your help.