DP hyundai Abohar

Well, How to start, A consumer needs a forum for grievances so that all are aware of things happening around us, when the level of tolerance crosses limits than we need to discuss it so that it might not happen again. Before starting my story I would like to inform that till now this news travels through this medium only and very soon it may take new shapes .
Story goes like this . I’m owner of Hyundai verna & yesterday i.e on 8th of October the incident took place at EXCLUSIVE HYUNDAI SHOWROOM at ABOHAR registered as DP HYUNDAI. after I got my gate pass after gap of two days for the starting problem and which they got fixed and actual thing happened when I drove my car out of the showroom boundary after submitting the gate pass and making payments, very soon I realized that my car is not running properly and it’s loosing its pick up so at that time my brain worked n within no time I was able to locate that it was a sensor problem to be specific it a mapping sensor located in a air filter just because I had experienced same problems five months back and paid 14 grands for replacing it with a new one from DP HYUNDAI ABOHAR only. and now they have intentionally changed it with an dysfunctional sensor of another verna car which belongs to the owner of dp Hyundai so quickly I drove back to showroom and started yelling at them about the cheat and told them that I’m pretty sure about this. I asked them to show serial no. of mapping sensor of owner’s verna to match it with invoice details of my purchase that is few months back then hearing to my strong point the mob started gathering n suddenly a mechanic comes with an explanation that it was his mistake n he wanted to check that was it actually sensor problem with owner’s verna n within flash of seconds they changed the respective sensors and again tried to convince me that it was just a mistake but as every one knows it was intentional n planned, why does the mechanic installs dysfunctional sensor in my car, which is not justifiable n now I have lost my faith in Hyundai and my car is making a lot of noises accompanied my missing and bubbling, now if I come up with next plan of action i.e contacting media and Hyundai corporate office or sue them after discussing it with my lawyer who is actually engaged in drafting of documents then owner will fire employees that are not that guilty coz this act was framed only on the instruction of the owner. Hence I feel like filing a complaint against them at Hyundai requesting an enquiry into the matter by getting my car checked at any other authorized Hyundai dealers as I suspect more fraud from there side and verify that parts have been changed after all while buying a car I TRUSTED HYUNDAI, NOT D.P...