Blue Smoke?

[ozgti]

Just had a huuge puff of blue smoke come out the pipes... chucked into N and revved it, and still smoke, but cleared. The car was warm, driven about 2 hours ago City - Hornsby and sat in the sun for a bit.

Anyone?

[Angryman]

Is it a diesel? MY GT Sport did this every now and then, no problems, just clearing out residue from the cat apparently.... but it is a diesel

[kaanage]

Shouldn't the DPF stop that sort of thing in the GT?

I'm assuming the OP has a GTi from his username (but it would be nice to be sure)

[AdamD]

Had you just started the car? Maybe a sensor is off and it briefly ran overly rich?

[ozgti]

It's a 118tsi.

The GTI is the MK2 in my avatar.

[ozgti]

Had you just started the car? Maybe a sensor is off and it briefly ran overly rich?

I had, but would this fault be logged?

[Angryman]

Yeah the DPF makes a huge difference from a normal diesel but it does let out the occasional blue fart (and I mean really really rarely)

Mate I had a lance that did it once as well, it was nothing to worry about, however I would mention it at your next service

[x_rotary_rasp]

Running rich as far as I know would blow black fumes and the popping and flames (rotary trait). Therefore, bluish smoke would either mean oil and if it is white-ish... then one would look at coolant leaking into the cylinder(s).

I'm no mechanic... so please enlighten me if I am wrong.

[break]

Blue is oil... typically a sign of worn valve seals. Could also just be the whole oil breather mechanism dumping excess oil into the intake (common trait of the latest range of VW motors).

[hooba]

You'd be well advised to take it to a dealer for a compression test.