MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: x21ekx on April 09, 2013, 08:36:59 am

Title: Tdi start up smoke?
Post by: x21ekx on April 09, 2013, 08:36:59 am
I have a GT TDI on a 06 with 97k I removed the dpf maybe six months ago had it remapped I was just wondering if its normal for it to smoke quite heavily on start up I think I've always noticed it if I'm being honest(since the dpf was removed) but I'm not really sure it's a white smoke it only happens on start up and last about 5 seconds or so?
If I boot it it also lets smoke out but I'm guess that's normal for a remapped car
Now it is due a service but! Would that really make a difference??
Title: Re: Tdi start up smoke?
Post by: xjay1337 on April 09, 2013, 09:45:21 am
Service it see what happens.
A small puff of smoke is normal on start up although excessive smoke could point to valve stem seals, or injector seals. However valve stem would normally smoke for a long time (until the engine has warmed up generally).

Especially in the cold weather the car tends to just dump a load of fuel in to aid starting, in which case it often goes out as smoke.
Title: Re: Tdi start up smoke?
Post by: daboy3000 on April 09, 2013, 09:58:23 am
Normal for a little cloud when you first start up in the morning, but if it continues past that or when you pull off in traffic then you may have a more serious problem.
Title: Re: Tdi start up smoke?
Post by: paulw123 on April 09, 2013, 10:48:11 am
if it starts up roughly as well, could be a glow plug gone, then when it does fire up the excess deisel will come out as white smoke. When flooring it, it should be black smoke.
Title: Re: Tdi start up smoke?
Post by: tom.b on April 12, 2013, 10:54:07 am
sounds normal to me tbh if its only lasting around 5 seconds i wouldnt worry about it IMO  :happy2:
Title: Re: Tdi start up smoke?
Post by: Trekmeister on April 12, 2013, 12:27:10 pm
Seems quite common tbh, mine gives a puff of smoke for a few seconds on initial start up then after it seems to run pretty clean. Specialist said don't worry about it when I inquired about it as its not out of the ordinary for a diesel.