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RE: Jaguar XF reliability - let's get info ASAP

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RE: Jaguar XF reliability - let's get info ASAP - 4/10/2008 5:25:04 PM   
FactoryJaguarTech



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Just to say....we sold 60 cars in the first month (March)....had none come back so far.

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RE: Jaguar XF reliability - let's get info ASAP - 4/11/2008 9:37:20 AM   
ken@britishparts.com

 

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Wow!  That's amazing!  I would figure there would be a rattle or wind noise or something.


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RE: Jaguar XF reliability - let's get info ASAP - 4/11/2008 10:10:20 AM   
mkaresh

 

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Sounds like someone's doing some fine PDI.

I had owners of the new 2008 Mercedes C-Class join up pretty quickly, so I was able to provide a preliminary result for that car last February. None of those owners reported a repair in their first month or two of ownership.

There will be some repairs on those cars with the May update, but still not many. Mercedes might have finally gotten its act together.

On the other hand, there's the new Cadillac CTS...

Which with Jaguar? Still hoping to find out.

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RE: Jaguar XF reliability - let's get info ASAP - 4/19/2008 10:31:17 AM   
paulleslie

 

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got a dsg gearbox warning light up after one week.Dealer collected car said needed a software patch ,did it 2 weeks later after waiting for it from the factory. All ok now MINSTER jag in Leeds  uk very efficient.

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RE: Jaguar XF reliability - let's get info ASAP - 5/8/2008 9:09:46 AM   
mkaresh

 

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Software updates for transmissions are VERY common these days, especially for new designs. I don't include these in the analysis unless they aren't covered by the warranty.

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RE: Jaguar XF reliability - let's get info ASAP - 5/9/2008 4:07:02 PM   
paulleslie

 

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I forgot to add that when dsg light came on the power was cut to a safe mode ,could only do 30mph max, this happened 3 times before the fix and in awkward places ,could have been really dangerous .In my book that is a definite fault and should be counted.
What is your reason for not counting this when car has become unuseable?

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RE: Jaguar XF reliability - let's get info ASAP - 5/9/2008 7:15:52 PM   
mkaresh

 

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I'm doing nearly everything myself now, and the sample sizes are small, so I'm cutting the data just one way, and picked the way that would yield the most accurate results with small sample sizes.

If I included unsuccessful repairs in the current analysis:
--we'd be measuring dealer competence as well as product reliability, adding a variable; additional variables inherently require a larger sample size
--would increase the chances of a single car heavily influencing the results

In the future, when I'm not doing all the work and the sample sizes are larger, additional analyses will be performed, among them the percentage of repairs that are not successful the first time.

The survey has been designed to permit many different analyses.

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RE: Jaguar XF reliability - let's get info ASAP - 5/19/2008 9:23:56 PM   
stkxjrtech


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We have had no issues so far.  My opinion is great at this point.  2 customers came in last week for the 10k service with nothing but the maintenance request. 

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RE: Jaguar XF reliability - let's get info ASAP - 5/19/2008 9:54:25 PM   
mkaresh

 

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Good to know.

To measure initial reliability with reasonable precision, though, we're going to need at least a couple dozen responses.

So far 17 owners have signed up. Need more.

Vehicle reliability research


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RE: Jaguar XF reliability - let''s get info ASAP - 6/10/2008 8:38:07 AM   
mkaresh

 

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25 owners now signed up. This will probably be enought for an initial result in August, but with an asterisk for a very small sample size.

A few additional participants could make a big difference.

Vehicle reliability research


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