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RENNtech ECU

 
Old 11-01-2018, 05:29 PM
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RENNtech ECU

Recently purchased a 14' S63 from a dealership, and the previous owner installed a RENNtech exhaust on the car.

Anyone out there have enough first hand experience with RENNtech ECU modifications such that you could tell me how to tell if my car has a modified ECU by RENNtech too, or not? I'm not sure what to look for, or how I could tell?
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Old 11-01-2018, 07:46 PM
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Not sure, Bob... maybe you could try to call RT and give them the VIN and see what they say.
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Old 11-01-2018, 09:06 PM
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Contact RT and ask the same thing youíve asked here and provide them your VIN and they can tell you if you have their tune. I would ask the selling dealer if your ECU is stock or tune, if they sold you a Mercedes with a tune, they should be liable if the tune causes any issues that might or might not void your warranty. Also keep in mind some people might buy downpipes from one vendor and tune from a another vender.
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Old 11-02-2018, 09:06 AM
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What I learned from my previous ecu tune. Is that, if your ecu had been tuned before. You can check physically if the seal around the ecu has been cut. Most tunes require opening the ecuís. The dealer wonít be able to tell. Unless they really plug in your ecu and really look into it.
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Old 11-05-2018, 05:16 PM
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Originally Posted by Manofsteelpt View Post
Not sure, Bob... maybe you could try to call RT and give them the VIN and see what they say.
Good idea. I gave them a quick call today, had a pleasant conversation with "john" and found out my VIN number does not currently have an ECU tune with them. Now to round up a few extra bucks and send it in.
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