I have just paid out £500 for a turbo for my 06 skoda octavia 1.9 tdi. I've now been told I need a new camshaft, any ideas on cost please?

Assuming you need a new camshaft and tappets, you want to budget about £1k. It's a common fault on the 1.9 150pd fitted to the mk4 Golf but not heard of it on the lower powered 1.9pd engines.

Edited 21 April, 201016 yr by peter0976

I have just paid out £500 for a turbo for my 06 skoda octavia 1.9 tdi. I've now been told I need a new camshaft, any ideas on cost please?

What are the symptoms of your problem and car mileage. Not heard of a camshaft ever needing replacing on a 105PD.

If the wrong oil has been used, I can understand the reason :(

What are the symptoms of your problem and car mileage. Not heard of a camshaft ever needing replacing on a 105PD.

The car is used as a taxi, it has 80,000 miles on the clock. The whole car is shaking when I get to 60mph, the mechanic who serviced the car took it for a drive and told me it was the camshaft, which could have been caused with my turbo going???

If the wrong oil has been used, I can understand the reason :(

Funny you should say that, the mechanic who replaced by turbo questioned what oil had been used.

i had a customer on yesterday pricing camshafts up because the car had been run on 10w40 semi in stead of pd oil and it had worn the camshafts

We reject warranty claims for failed turbos due to innapropriate / low quality oils. We can also reject claims if the oil is in poor condition. It's easy enough to get an oil sample analysed.

So yeah turbos are very oil sensitive.

Are you sure you don't have an oil pressure/supply issue, which has been starving the turbo and camshaft? When the turbo went, did it properly let go and dump a load of oil? If you kept the engine running with no oil pressure, then the camshaft would have been running dry.

Turbos very rarely just break on their own. The fact that they heavily on alot of other systems working correctly means that they are usually the first thing to go when one of the supporting systems fails. Because of this people always just jump to the conclusion that it's the turbo at fault, and just blindly replace it. Only to end up having to replace it again soon after, as they never fixed the true source of the problem.

Classic examples are:

-FOD (foreign object damage), usually turns out to be small bits of foam/paper air filter material that have broken up or little bits of plastic/rubber that have broken off the intake ducting.

-Blocked engine breather system, causing an increase in crankcase pressure.

-Blocked oil drain, caused by damaged drain tube or very poor oil quality clogging the tube.

-Oil starvation, due to lack of oil or oil pressure.

-Baked on oil (coking) on the bearing and shaft surfaces, caused by hot shutdowns.

-Turbo overspeed, normally caused by some joker adjusting/locking the wastegate to get more boost.

-Bearing damage caused by poor quality oil.

It's pretty hard to see the route cause of a failure when you're faced with a broken turbo. As once any of these issues occur, they escalate into a whole array of subsequent failure modes. For example, people commonly blame the bearings for the failure, but the bearings normally fail due to an imbalance in the shaft, which can be caused by FOD. Alot of the time the FOD is so subtle that people miss it. It doesn't take much to kick a small aluminium impellor spinning at 160,000rpm out of balance!

Now that is what I call a quality post