I recently got a Restricted Performance message in my message center. As the manual states "contact Jaguar dealer". Wow, that's helpful. I saw some threads here regarding what it COULD be. In any event $2,400 later I had all knock sensors replaced, 6 spark plugs replaced, a couple of other smaller items I have no idea but was told all related to this issue. Then a new battery although my battery was only 1 1/2 years old. So the question is:
Was all this necessary? I do admit the car runs smooth as silk now but it did before the message mysteriously appeared. I was also told that since the car had been out in some extreme wet weather that may have brought the problem on. Really? I am just looking for answers that my justify this big bill. Anyone else experience any or all of this?

 

It's impossible to say with no actual data as to the cause but your situation is why so many of us DIY.

 

Presuming that the dealer did not take advantage of the situation and 'pad' the bill meaning that all the components replaced were genuinely faulty, $2400 is not unheard of.

As JagV8 mentioned without specifics it is impossible to know if the parts replaced were all faulty, were the result of 'shotgunning' troubleshooting to get the car out as quickly as possible, incompetence, or were 'while we're in there'.

Had you done the work yourself the bill might have been 1/4 that.

 

Wow, $2400 is A LOT of money for 6 plugs and knock sensors plus a few small items. My guess is that the extreme wet weather brought on a TPS problem. Sounds like they may have changed the throttle body. Too bad the message didn't say "Contact Jaguar forum".

For maintenance of a 10-year-old Jag, you have 3 basic choices:
(a) As much DIY as possible, with parts sourced from the internet, or
(b) Get an ODBII gauge and read the codes and/or consult the forum and then get a Jag-knowledgeable indie to do the work, or
(c) Let the Jag dealer do it all and be prepared for a BIG bill.

I'll bet that the majority of forum members use (a). I maintain fluids, battery, filters, wipers, interior and exterior myself, and read ODB codes. Indie does the rest, except for dealer-only jobs like TCM re-programming. Local dealer rate is about $150/hour!

 

Unfortunately a lot of issues on Jaguars need major strip down to access components which "may" need to be replaced , so the biggest portion of most bills are labour.
One would hope with dealers personnel having experience of the marque only parts which do need replacing are in fact replaced?

My experience across a range of makes is that dealers are no better than Kwik Fit, when it comes to replacing good components in their quest to both solve problems and make money?

The only time I have had a dealer fix my car and didn't want money was a Seat Toledo which a mechanic fixed after I went through a large puddle and got wtaer in around the ECU while on holiday?

I diy almost everything now!!

 

Labor was a large part $525. Battery and oil change $250. Remainder were the knock sensors $150 each and plugs. I will in the future come here first with my queries. Happy Holidays to all!