passat tdi 130 pd turbo problem

[amkat34]

i have had turbo problems on my passat tdi 130 pd a local guy tried a repair new pipes some valve some vain cleaner cost 370. did not work so i bought a new turbo this week was fitted yesterday still not running he told me he plugged in a test device showed no faults . i have drove it home had trouble to get to 40 in 2nd gear he told me the new turbo has been set at a low setting to run it in and after 300 miles i need to return it so it can be reset to full power is this true ??? it also seems to lose the little power it has completley but when i restart the car after half an hour its back andy advice would be great

thanks

[Sparta VAG]

amkat34 said:

i have had turbo problems on my passat tdi 130 pd a local guy tried a repair new pipes some valve some vain cleaner cost 370. did not work so i bought a new turbo this week was fitted yesterday still not running he told me he plugged in a test device showed no faults . i have drove it home had trouble to get to 40 in 2nd gear he told me the new turbo has been set at a low setting to run it in and after 300 miles i need to return it so it can be reset to full power is this true ??? it also seems to lose the little power it has completley but when i restart the car after half an hour its back andy advice would be great

thanks

I'd take it to a different mechanic.

Others may correct me on this, but that's the first time I've heard of a turbo having to be reset after it's been run in (for a cost of extra £££ no doubt).

There are tonnes of valves and pipes on VAG TDI engines that can fail and diagnosing "turbo problems" can be a pain in the backside. How was the turbo fault diagnosed?

Edited by Sparta VAG on Sunday 10th March 21:43

[amkat34]

hi the fault was found with a gadet that was plugged in to the car that came up with 2 faults
1 was a charge valve and the second we are not sure what it was but he changed
valve vacuum
charge valve
breather pipe
oil
£377.18

all this made no difference went back and his idea was to buy a cleaning kit online to flush out the turbo @ £180 inc labour

still not fixed he did not have any ideas why so i went on line ordered a exchange/recon turbo @£300
he fitted the turbo this week +
pipe seals fuel cleaner oil filter turbo pipe and new oil inc labour £369.46

my total spend is £1226.64 and still its not fixed iam not a mecahnic but i have looked no line and 2 things come up re turbo problems map sensor and mass air sensor as a mechanic should he have started on these parts first ??? .
as for running in the turbo i have looked online and cant find any quotes re running in a turbo
or having the setting changed many thanks for you reply

Edited by amkat34 on Monday 11th March 00:31

[Tallbutbuxomly]

Describe the fault/symptoms in detail please. We could then give you a more informed answer.

[DEANO87]

It's difficult to tell without more info but the first thing I would do is try blanking of the EGR valve because it sounds like its stuck open.

[DEANO87]

The being set to low power for 300 miles and turning it back up story is complete nonsense!

[amkat34]

hi all ok symptoms are very little power up hill like its got no turbo
on the flat sometimes after 3ooo rpm it cuts in for a a while but then you can feel the car lose power and after that no turbo at all but after i park turn off for about half an hour same thing turbo for a while then its gone.

thanks

[Tallbutbuxomly]

At a guess boost control sensor needs replacing £80 give or take fitted. All the other stuff was unnecessary. I would not let whoever the idiot is who has done all this work to your car anywhere near it again.

[TDIfurby]

Sounds like limp home mode.

Also the turbos NEVER need "running in" - that's a total cock and bull theory designed for people who think turbos need running in like a brand new engine / set of pistons/rings.

I would take it elsewhere. I am sure with VCDS I could log actual and requested boost and find out what the turbo is doing (or not doing)

[Volkswagen Bubs]

Hi mate, did you ever resolve the issue with your passat? I'm having exactly the same problem with mine now. Almost exactly as you describe.