Hi there,
'Got a 110 TDI with average miles 3 months ago, had it remapped (CC Stage 1) and all's gone well; good progressive power. 'Have only done 1200 miles or so.
However, last week I noticed a reduction in power (110 TDI), e.g. could hardly get the traction lights to come on, despite 'encouraging' it in 2nd gear, which was easily possible before.
So I started thinking something was wrong & was losing torque/power.
Then a couple of days ago, the dreaded owl/siren noise started from the engine bay. It's the typical 1000-2000 RPM up and down pitched sound when you change through the gears around town.
It's loud enough for pedestrians to hear & definately not the normal turbo whistle, this is more line a whine.
Having parked up in a quiet area with the bonnet and driver's door open, pressed the accelerator and heard the turbo whine, then as it dies down there's a short high pitched noise, like metal scraping on metal for a second.
At first I was hoping it was a leaky boost pipe, but with the small noise at the end when the turbo winds down, leads me to think it's more likely the turbo thrust bearing which has gone.
I've read into it on the forums, and know not to cane it now, stay around 1500 RPM and if the turbo pops and a cloud of white smoke comes from the exhaust, to switch it off and get it recovered. (plus also read about engine run-on, which could happen when the turbo fails, meaning 5th gear and a stall to stop it!).
However, I don't want to wait until the turbo pops, which I've read is a lottery and could happen anytime between 1 and 10,000+ miles, and driving at 1500 RPM is no fun anyway!
So what I'd like to know is if the symptoms described above are more than likely the turbo on its way out, or could it be something else?
Many thanks and all the best
'Got a 110 TDI with average miles 3 months ago, had it remapped (CC Stage 1) and all's gone well; good progressive power. 'Have only done 1200 miles or so.
However, last week I noticed a reduction in power (110 TDI), e.g. could hardly get the traction lights to come on, despite 'encouraging' it in 2nd gear, which was easily possible before.
So I started thinking something was wrong & was losing torque/power.
Then a couple of days ago, the dreaded owl/siren noise started from the engine bay. It's the typical 1000-2000 RPM up and down pitched sound when you change through the gears around town.
It's loud enough for pedestrians to hear & definately not the normal turbo whistle, this is more line a whine.
Having parked up in a quiet area with the bonnet and driver's door open, pressed the accelerator and heard the turbo whine, then as it dies down there's a short high pitched noise, like metal scraping on metal for a second.
At first I was hoping it was a leaky boost pipe, but with the small noise at the end when the turbo winds down, leads me to think it's more likely the turbo thrust bearing which has gone.
I've read into it on the forums, and know not to cane it now, stay around 1500 RPM and if the turbo pops and a cloud of white smoke comes from the exhaust, to switch it off and get it recovered. (plus also read about engine run-on, which could happen when the turbo fails, meaning 5th gear and a stall to stop it!).
However, I don't want to wait until the turbo pops, which I've read is a lottery and could happen anytime between 1 and 10,000+ miles, and driving at 1500 RPM is no fun anyway!
So what I'd like to know is if the symptoms described above are more than likely the turbo on its way out, or could it be something else?
Many thanks and all the best
