I am a silent member here. I love to read every post on TFi but couldn't post regularly due to time availability. I am a great fan of FIAT cars. Was using a palio then I bought a used Linea on 2012 from a known friend. It was 2009 model emotion pack clocked 40 k kms when I bought her. Now now odo reads around 68 k kms and I am facing a lot of problems. The previous owner was giving good care to her, He done every services under 10 k kms, mostly 8 k kms till 40 k on odo. I also followed that till now. As per 60 k service I changed timing chain at around 50 k kms (60k service) It was about 1 year ago. After that I was facing some performance issues. SVC said it will be ok after some kms. Then I started hearing a whistling sound. A minute one but I could hear it. I visited Mohandas motors trivandrum, they said it is because of uneven Tyre wear and I should change tyres. Tyres had a good life left, so I continue using it for around 5 k kms then I changed tyres. But still the whistling sound was there. But mechanics couldn't hear it, they said they will check it in next service. Then about 4 months ago I visited Daiwik fiat, kollam. The SA said every linea clocked over 60k kms having same sound so its nothing to worry. I disagreed and said that I know many lineas whcih has done over 60k and none has such sound. I said i doubt turbo hose leak or something and said to check it. Why I visited daiwik because I was having a lot of issues with Mohandas. usually whenever I get poor service I will make a complaint to fiat, I am that kind of person. So I stopped going mohandas and went to Daiwik, but it was even horrible. After the service, SA said the whistling is because Turbo blown. The oil level was a little low and they toppped up. The after spme weeks I went there for service. Did everything including oil and filter change and egr cleaning etc. Then I visited mohandas again during camp. They said turbo has no problem but oil was low and they topped up around 1.2 ltr oil. I drove her only around 500 kms between last oil change and top up during camp. Exhaust was emitting black smoke during heavy acceleration. It was there since years. Then I drove her over 3000 kms and I was regularly checking oil level. It went to only halfway between min and max marks after 3 k kms. I made complints to these service centers because I faced some issues. So I decided to goto any other workshop. I didn't used car for about 5 days, then one day when I started driving her I felt pickup was low. Turbo boost was reduced. Everything else was ok. Smooth idling and good pickup on highways but lagged in inclines. Then it started behaving like sometimes good turbo boost and everything ok but some other times less pickup. Mileage was almost same and sometimes i felt it was giving 1 or 2 kms less. I visited a Bosch authorized service center. Initially they said turbo seems ok and injector might be faulty. Then they said both turbo and injectors gone. They kept car and after some days they said Turbo is gone injectors are fine. So I bough a turbo from Kava motors. They fitted it and said that turbo is not good. I test drove and to my surprise There were zero turbo boost. idling was horrible. All smoothness gone. It couldn't go above 40 kmph and engine sounds like a tractor. So they removed the turbo and they said they will get the old turbo repaired. After 2 weeks got the refurbished turbo and they fitted it. I went there and took a test drive. It became even worse. No turbo boost, some horrible clanking noise from engine. Engine stops after some meters run. It feels like a dead engine. I became angry and shouted to them. They said they will find the issue. Then after some days they said there are some problems in inside of engine. Oil entered to engine via damaged turbo, so intake manifold etc were clogged and they cleaned it. Still the same problem. No pickup, horrible noise etc..it even struggles to start.They said they will dismantle everything and will check After some days they called me n showed me engine internals. 2 Rhodes damaged, crankshaft damaged, bearings, sleeves etc also damaged. Now they quotes around 40 k for engine rebuild. I shouted to them as when I gave them car it was not like that. It was smooth and everything were okay except low pickup sometimes when turbo kicks. They said the internals were already damaged so when they fitted good turbo the new and good turbo boost damaged the almost broken internals like bearings, rodes etc. They says service center might missed some oil changes even though they charged and billed. So a dead Linea at just 68 k kms. We did all maintenance and service as per manual or service book says. The car used for family use entire time. yet we got all these defects. So whom should I blame? FIAT? SVC? Bosch svc? or me? Experts, please shred some light on Bosch peoples comments. Turbo fitted and because of extra boost bearings and rodes damaged....is that correct? Will engine die like this without any symptoms. No abnormal sounds, no smoke from oil dip hole. What should I do now? Go ahead with engine overhaul? or take action against Bosch svc?