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Hard to believe but this part number wouldn't come up in JF search results
4R8Q-12A699-AB nor it variation 4R8Q12A699AB
Online that knock sensor number creates mess pointing to a half of dozens car's
manufacturing companies and if first example points to Jaguar XJ X350 2004-2009,
second to LAND ROVER, Volvo, Peugeot, Citroen, Ford and so on.
It described as Jaguar XJ X350 2004-2009 part and sold by Amazon for about $24
but eBay has it as S-type for different years and even diesel engines.
So, is anyone can make sense, what is it and on which car it should be used?
What a knock sensor is? Its designed to detect knocking (uncontrolled) combustion, for instance due to low octane fuel. If that is the case the ECM will reduce Ignition angle. On Jags there are mostly two, mounted in the V of engine block.
What a knock sensor is? Its designed to detect knocking (uncontrolled) combustion, for instance due to low octane fuel. If that is the case the ECM will reduce Ignition angle. On Jags there are mostly two, mounted in the V of engine block.
ok there’s actually two types for the gas v8, one for the 06+ the other for the 04-05.
Thanks for trying to help but I know that.
My question is about 4R8Q-12A699-AB and because that part number have conflicting description,
why Amazon has been selling it as Jag x350 part given people have trust Amazon can't be wrong?
Originally Posted by xalty
AJ85676 is the part for your car. black connector
Right, and AJ84433 is for A bank if anybody care to know
Am I?
I'm making post about specific part number and it application and nothing else.
Yes sure, people are doing their best to be helpful, but if my post have mentioned
that part number and I been clear about that "the fact it has been used on 2.7 diesel Jag"
would make my car gasoline.
So you think I shouldn't correct or better yet ignore poster?
What would you do?
the part 4R8Q-12A699-AB is for the lion v6 diesel used by many brands......
Right, but this is not about using different brands of part or different part numbers.
Sure you can use many brands but then explain different connectors and how
you would use them for your specific Jag? As you've mentioned, black is for Jag.
But part doesn't have black connector it has white which is totally different but if you believe
Amazon, the part with white connectors it sells applicable for your 2004-2009Jaguar XJ X350
Right, but this is not about using different brands of part or different part numbers.
But part doesn't have black connector it has white which is totally different but if you believe
Amazon, the part with white connectors it sells applicable for your 2004-2009 Jaguar XJ X350
because the diesel uses a siemens ecu and a completely different harness...it will fit a tdv6 x350
because the diesel uses a siemens ecu and a completely different harness...
What are you trying to prove to me?
Are you even trying to read my posts?
Now, either answer my questions with related replies or do me a favor and stop giving me useless replies.
Show me where I'm claiming that 4R8Q-12A699-AB part can be used in 2004-2009Jaguar XJ X350 cars?
After all this is what you are trying to prove to me after I told that in my first post.
Right, but this is not about using different brands of part or different part numbers.
Sure you can use many brands but then explain different connectors and how
you would use them for your specific Jag? As you've mentioned, black is for Jag.
But part doesn't have black connector it has white which is totally different but if you believe
Amazon, the part with white connectors it sells applicable for your 2004-2009Jaguar XJ X350
Tricky business, buying parts online.
Quite often vendors do not picture the exact part you are buying. Sometimes the listing mentions that. Sometimes not.
Sometimes the vendor is simply wrong. Incorrect information, period.
With all the thousands of parts vendors selling the very same parts online you an easily find the same errors over and over, and the same pictures over and over. I suspect these vendors are using the same parts catalog data base where errors (or mere discrepancies) infiltrate throughout....until or unless a particular vendor notices and corrects the error or discrepancy and corrects his listing. Maybe the data base will also get corrected, eventually; maybe not.
Contact the vendor directly before ordering. You might get hold of a knowledgeable person. Or you might get a warehouse worker at a mass merchandising company who wouldn't know a knock sensor any more than a hog knows today is Friday. Hard to say.
If any doubt make sure the part is returnable or, better yet, buy from a different vendor.
What are you trying to prove to me?
Are you even trying to read my posts?
Now, either answer my questions with related replies or do me a favor and stop giving me useless replies.
Show me where I'm claiming that 4R8Q-12A699-AB part can be used in 2004-2009Jaguar XJ X350 cars?
After all this is what you are trying to prove to me after I told that in my first post.
To be honest I'm not entirely clear on what you're actually trying to accomplish.
Are you trying to find the correct part for your car?
Are you trying to figure what cars 4R8Q-12A699-AB is correct for?
Are you trying to understand why there is a discrepancy in online parts listings?
Are you simply complaining about Amazon?
Quite often vendors do not picture the exact part you are buying. Sometimes the listing mentions that. Sometimes not.
Sometimes the vendor is simply wrong. Incorrect information, period.
And that is why I made my post to make some sense of what is going on with that part number.
Just read my OP.
Originally Posted by Doug
With all the thousands of parts vendors selling the very same parts online you an easily find the same errors over and over, and the same pictures over and over. I suspect these vendors are using the same parts catalog data base where errors (or mere discrepancies) infiltrate throughout....until or unless a particular vendor notices and corrects the error or discrepancy and corrects his listing. Maybe the data base will also get corrected, eventually; maybe not.
Right, but we are not the one who should pay the price and to know that vendors are making
mistake and thus buying parts believing that they aren't wrong and know what they are selling.
Amazon is just one example and there are a dozen more doing the same.
Originally Posted by Doug
Contact the vendor directly before ordering. You might get hold of a knowledgeable person. Or you might get a warehouse worker at a mass merchandising company who wouldn't know a knock sensor any more than a hog knows today is Friday. Hard to say.
I did call to Germany and vendor told me that this is what their supplier is selling and if this is
wrong part description they (venders) wouldn't know that because even manufacturing
is claiming that part is correct and thus 2004-2009 Jaguar XJ X350 applicable.
Originally Posted by Doug
If any doubt make sure the part is returnable or, better yet, buy from a different vendor.
It just lucky me I've paid attention while comparing parts side by side and have discovered
that connectors are different What about others who bought part only discover after mechanic
lifted intake manifold on SC engine that this is wrong part?
And as to your second post (above)... again, read my OP
What is it?
