My 1992 Vanden Plas V12 needs a new ECU, I can find one online with the identical part number DAC 6335 84562H but is for a 1989, the only difference is the build date. Would this work in my car without reprogramming it. Thanks

 

Ill just throw this out since no one more educated has replied yet. I think that it would work. I think so because despite the computers being on the car, they arent That complex. I also think that the last 6 on the ECU's part # is the most important part- the 84562H should be the series (for lack of a better word) number for that particular unit, and not the more general "ECU" part number. By the way, is your car a Series 3 car and not an xj40? Just checking, Im honestly curious. Sorry for the delay.

 

Thanks for the reply, that seems to be the consensus. I'm not that familiar with these cars so I not sure how to tell if it's a series 3 or an xj40. It was just a nice car in great shape bought from an estate sale.

 

Theres a sticky at the top of this section titled "Which xj6 do I have?" which explains it. I asked because I dont think the xj40 got the v12 until 93 after Jaguar changed the engine bay to make it fit. At the same time- until 92 they were still building the Series 3 cars as v12's (I think) exclusively. They are very different cars. Post us some pics if you can, wed like to see it anyway.