My local garage in France has declined to replace my turbo which is over boosting due

no doubt to carbon build up. They say that at 200000 miles, there is a good chance of causing problems with the head in their experience. A local U.K. independent has offered to do the change and has made no such similar warning. Does anyone have experience of this before I invest in a repair?

They sound like they don't want the job rather than for any mechanical reason.

 

See what code(s) show on a scan, give us more details and search my post the matter, it may just be a cheap and quick fix.

Give it a Mr Muscle enema & it will be good for another 100K miles, lubricate and work the actuator to free it and the vanes off at the same time.

I’m aware of the Mr muscle treatment but as I intend to keep the car till it falls to bits and as there will inevitably be 200000 miles of wear present, I’ll treat her to a new one ( as long as I don’t get confirmation of the mentioned head problems....)
Thanks for the suggestion though ...

Edited 12 September, 20205 yr by ecr7

Any further comment on this?

There is no possibility of overboosting causing a head gasket problem because as soon as the boost pressure sensor shows boost beyond that which is commanded the engine ECU goes into limp mode.

 

There is also I believe a blow off valve, I could hear & feel the burp at the point my engine would go into limp mode.

 

I took my car up to 325000 miles before scrapping it due to electronic problems, it would never have fallen to bits, it was still working perfectly on the original turbo, I did 2, possibly 3 Lidl oven cleaner treatments during that time.

 

During that same 12 year period my chauffeur friend who sold me the vehicle paid out for 3 replacement turbos on the Touran he replaced my car with, IIRC around £1500 each time plus loss of business etc when it could have cost £3 and a little time.

 

You pays your money you takes your choice, I have more faith in the longevity of the factory fitted parts with occasional cleaning than an aftermarket turbo most of which are made in China, look at the website Maxspeedingrods, they are very cheap but after buying equally cheap rear brake calipers & aircon pumps from them I know there is a price to pay for much cheapness in both these cases it was just an inconvenience, little money lost and no big deal, no way would I take that risk with turbo failure.

Edited 17 September, 20205 yr by J.R.