Dealer car with turbo blow off valve
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Joined: Dec 2001
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From: US
AMG GTS (gone - lemon)
Dealer car with turbo blow off valve
Test drove a '16 GTS today at an MB dealer. I couldn't figure out what that pssssssh noise was anytime i accelerated. Apparently the previous owner that traded it in put the thing on. Are these popular? I found it super annoying. Told them part of deal would be removing it (any other considerations that would accompany that modification?). LOVED the exhaust though, of course especially with the valves opened with the switch. Overall really enjoyed the car a lot. More wild in S+ and more comfortable in C than my 997.2 C2S im planning on trading. Unfortunetly we couldn't come to a deal. They were low on my trade based on clean NADA or KBB price, and while MB dealers have asking prices of $79,900 for the identical cars, they want $84k. We're apart almost $10k, so I walked and see if I hear back. There are others to check out and im not in a rush.
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From: Overland Park, KS
‘24 BMW iX M60
Test drove a '16 GTS today at an MB dealer. I couldn't figure out what that pssssssh noise was anytime i accelerated. Apparently the previous owner that traded it in put the thing on. Are these popular? I found it super annoying. Told them part of deal would be removing it (any other considerations that would accompany that modification?). LOVED the exhaust though, of course especially with the valves opened with the switch. Overall really enjoyed the car a lot. More wild in S+ and more comfortable in C than my 997.2 C2S im planning on trading. Unfortunetly we couldn't come to a deal. They were low on my trade based on clean NADA or KBB price, and while MB dealers have asking prices of $79,900 for the identical cars, they want $84k. We're apart almost $10k, so I walked and see if I hear back. There are others to check out and im not in a rush.
Keep looking!
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Joined: Dec 2001
Posts: 71
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From: US
AMG GTS (gone - lemon)
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Designo White AMG GTS
Do you happen to be in Southern California? Is the car grey?
I've heard dealers are lowballing on trade-ins right now because of the economy. I had some interest in a new car but I'm too lazy to sell private party.
I've heard dealers are lowballing on trade-ins right now because of the economy. I had some interest in a new car but I'm too lazy to sell private party.
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Junior Member
Joined: Dec 2001
Posts: 71
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From: US
AMG GTS (gone - lemon)
I hate trying to sell a car private party too, all the lowball bs and tire kickers.
At this point im more concerned on the history of the car i testdrove with the BOV. Wondering what else might have been done to it, or how it was driven. They told me it was a one-owner off lease but the carfax says two owners both purchased, that's how full of **** these guys were 🙄
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From: Naples FL
2021 Porsche TTS
Good luck with your search. BOVs are eay to install or take out. Should not be a deal breaker. I am potentially selling my 17 GT if that's any interest to you. Feel free to lurk around to see the pics and let me know if you have any interest.
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AMG GTS (gone - lemon)
it’s an interesting question though, I wonder if anyone knows for sure. If a GTS was still under factory warranty would an aftermarket BOV potentially void the warranty? Or more specifically regarding Magnuson warranty act, any problems that arise with the engine not be covered under warranty because of the bov?
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2020 McLaren 720s Spider
it’s an interesting question though, I wonder if anyone knows for sure. If a GTS was still under factory warranty would an aftermarket BOV potentially void the warranty? Or more specifically regarding Magnuson warranty act, any problems that arise with the engine not be covered under warranty because of the bov?
To put a finer point on your question, if the blow off valve has a higher tolerance and builds excessive pressures in the system and a part fails that can be linked to that I would say you won't be covered. They just need to prove causality, and it has to be reasonable. Most of all the burden of proof is on them, not you to prove otherwise (thats in the Act too!).
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AMG
The Magnuson Moss Warranty Act says that aftermarket parts are not a good enough reason to void a warranty. In fact, they would have to reasonably explain the failure of a warranty parts relationship with your aftermarket choice to void the warranty. It becomes much more difficult for the consumer to defend with something like a tune because it pushes all of the parts that might fail out of factory specifications. Or if you have a failed strut or wheel bearing and you have lowered your car 1.5" you're gonna struggle defending yourself through this act.
To put a finer point on your question, if the blow off valve has a higher tolerance and builds excessive pressures in the system and a part fails that can be linked to that I would say you won't be covered. They just need to prove causality, and it has to be reasonable. Most of all the burden of proof is on them, not you to prove otherwise (thats in the Act too!).
To put a finer point on your question, if the blow off valve has a higher tolerance and builds excessive pressures in the system and a part fails that can be linked to that I would say you won't be covered. They just need to prove causality, and it has to be reasonable. Most of all the burden of proof is on them, not you to prove otherwise (thats in the Act too!).
I'd be interested to hear the opinion of someone who has first hand knowledge and experience on this topic, because I know about the MMA, but as far as I'm aware that doesn't mean they can't deny you a warranty claim per say, just that you can choose the uphill battle of fighting it if they do.
Last edited by Orcbolg; Jun 13, 2020 at 05:55 PM.
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I'd be interested to hear the opinion of someone who has first hand knowledge and experience on this topic, because I know about the MMA, but as far as I'm aware that doesn't mean they can't deny you a warranty claim per say, just that you can choose the uphill battle of fighting it if they do.
FWIW, I have modified Porsche, BMW, MB, Ferrari, and Audi. In all cases the dealerships were usually in the know about my car and there was a relationship to lean on. All except for the Ferrari were under factory warranty - between all of them probably about 8 significant issues (excess of $2,000.00) and some questions around the aftermarket parts. In each case, it tended to be a harder stance from the manufacturer and the dealer applying logic. For example with one I had a driveshaft shimmy that their first response was 'its the aftermarket wheels' but when challenged they used a set of in house OEM wheels and confirmed it was the driveshaft. Problem solved.
I think the challenge is going to be its somewhat at the discretion of the management on how hard or how easy it will be to solve problems - the more suspect the part (like I mentioned about pressures it may change) the more challenged you will to take a position in your favor. All that said, RENNtech is something that MB sees quite a bit - i would be really surprised if something as benign as blow off valves have any impact on warrant.
Last edited by Skilly; Jun 13, 2020 at 10:11 PM.
