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Old 4th January 2009, 17:22   #106
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Hi Juny,

Good to know that the issue has been identified.
What is this sedimentation unit getting dirty and all that.
Did you ask them if there are other Vista owners with similar problem or different problem?
Its really sad that its happening to a new car.
I am also a Vista TDI owner and now I am concerned.
We also have a zen at home and we never had any trouble with it and never had to know about any technical stuff about the car, I still dont know where the ECU is . But now after owning a Tata car I hope it wouldnt make me learn about all its internals.

Cheers,
Nitin
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Old 4th January 2009, 17:27   #107
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and so the beta testing/"customer" R&D of the car begins
revhappy, i dont think you have to worry about this particular problem since yours is an older gen TDI engine - they are very tolerant about bad fuels. its the newer common rail diesels which need a sedimenter
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Old 4th January 2009, 18:13   #108
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what is "sedimentation"? did you find out how it happens? Better to know how to prevent such things.
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Old 4th January 2009, 18:26   #109
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if the sedimenter is really clogged( and not a sensor fault) , its because of , well, excess water or sediment. filling up from a good pump, and not running the tank anywhere near empty would be a good precaution
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Old 4th January 2009, 19:10   #110
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Hi,

Quote:
Originally Posted by junymathew View Post
Is there any place i can report or complain about this delay?.
supportsouth@tatamotors.com

They respond.
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Old 5th January 2009, 15:52   #111
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Quote:
Originally Posted by CtrlAltDel View Post
what is "sedimentation"? did you find out how it happens? Better to know how to prevent such things.
Well, im no brainy when it comes to technical stuff, but i could tell you the basics. The diesel in the vehicle undergoes a sedimentation process (A process of filtering out unwanted content including water and other particles) before it goes for combustion. This is done in a "sedimentor" or "sedimentation tank"(inside the vehicle).
This is the part that has developed the fault.

Mostly, this happens due to filling of bad quality fuel or fuel mixed with water or similar stuff. Bestway to prevent it - Buy good quality fuel from a pump you have had good prior experience with.
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Old 5th January 2009, 20:41   #112
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Quote:
Originally Posted by BloodHound View Post
Well, im no brainy when it comes to technical stuff, but i could tell you the basics. The diesel in the vehicle undergoes a sedimentation process (A process of filtering out unwanted content including water and other particles) before it goes for combustion. This is done in a "sedimentor" or "sedimentation tank"(inside the vehicle).
This is the part that has developed the fault.

Mostly, this happens due to filling of bad quality fuel or fuel mixed with water or similar stuff. Bestway to prevent it - Buy good quality fuel from a pump you have had good prior experience with.
oh ok! i always fill fuel from the same pump every week - since 1998 when I bought my mobike! this is a trustworthy place thank goodness!
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Old 5th January 2009, 21:54   #113
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I am still a bit doubtful. Going by the turbo failure on suman's safari - my take is that turbos are precision equipment. How can you be convinced that its not a turbo failure - that darn thing runs at few tens of thousand RPM. Any failure could be catastrophic.

Please make sure they show you the state of the turbo before returning the car back.

And turbo failures are rare but do happen across all cars. I know of it happening on a Swift as well - so happens all around. Kindly triple check the car before taking delivery
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Old 6th January 2009, 12:32   #114
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Well, phamilyman has a point. Even a blownout Turbo can cause the car to go into the Limp-Home mode. So you may want to check that point out before you take the delivery.

However in almost all Common Rail cars the fuel quality is of real importance. If the sedimenter is clogged it is really necessary to get it cleaned up immediately. In fact the warning light coming on and the car switching itself into the limp home mode is a dire situation. It means that you have filled up some dicey quality fuel quite a few times. Change your fuel bunk, pronto.

Remember, if you run with clogged sedimenter for long it may cause irreversible damage to your injectors as well.
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Old 6th January 2009, 21:45   #115
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Actually, the Aura(i donno about the other models) even comes with a water-in-fuel indicator which glows if it detects high amounts of water or other solvents in fuel!! Now thats cool!
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Old 7th January 2009, 11:42   #116
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Hi,

Quote:
Originally Posted by BloodHound View Post
Actually, the Aura(i donno about the other models) even comes with a water-in-fuel indicator which glows if it detects high amounts of water or other solvents in fuel!! Now thats cool!
The common rail diesel engines are very sensitive to quality of fuel. So all cars with those engines have these type of filters.
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Old 7th January 2009, 16:04   #117
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So the QJD has several parts different from the TDi! And I was thinking they were charging a premium of 70 K on the QJD over TDi for just the engine and the gear box!

What other major internal components are different in the QJD from the TDi?
I know its too early but in future if I wanted to get the QJD engine into my Vista TDi would that be a feasible option?


Cheers,
Nitin
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Old 7th January 2009, 17:41   #118
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arre bhai...QJD is a common rail engine while the TDI is an NA engine with a turbocharger.
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Old 7th January 2009, 18:30   #119
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QJD also has a turbo !

there is no such thing as an NA engine with a turbo charger. its either turbo charged or NA

the TDI is an Indirect Injection engine , while the QJD is Direct injection
most common rails are turbocharged anyway
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Old 7th January 2009, 21:02   #120
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Quote:
Originally Posted by greenhorn View Post
there is no such thing as an NA engine with a turbo charger. its either turbo charged or NA
of corz....

what I heard was that the Tata TDI engine is Tata's NA diesel engine (found in V2) fitted with a Turbocharger.
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