Mods Under Warranty

[tbands]

I just bought a 2019 genesis g70 3.3t in august and wanted to add a few things to it now that it's starting to get nice outside. Does anyone know what mods you can do without voiding your warranty? I would assume you wouldn't be able to mess with any main engine components, but would I be able to put an exhaust on without the warranty being voided?

 

[Motogp69]

Wondering the same since I should have my G70 this weekend.

I am coming from a 340i and hoped to do similar power improvement bolt on mods:

JB4 (worried about the spark plug issue)
Cold Air Intake
Catless downpipe
Rims/Tires

 

[jdiddle]

You can put almost any bolt on without voiding the warranty. Things I would be apprehensive about is deleting Cats and tuning. JB4 is simple enough to unplug before service or trying to make a warranty claim. Another user on this forum tried installing downpipes on his G70 and snapped one of the flange bolts going to the Turbo (to access the stock downpipes) and the Genesis dealer refused a warranty claim since he was trying to modify the car (if I remember that correctly).

I had one of my spark plugs crack when I was using a JB4, not sure what caused it, if it was install error or just a bad plug, but it wasn't covered under warranty since these were aftermarket for the sake of the JB4 requiring a colder stage spark plug. However, it did not void my warranty. It comes down to whether or not an issue can be traced back to the modification specifically.

Before I sold my G70 a few months ago I ran a catback exhaust, intakes, aftermarket rotors and pads, spacers, and a tune. Never had an issue claiming a warranty item unless it was not an OEM part like the spark plugs.

 

[csu87]

any mod doesnt automatically void the warranty, but if that mod puts additional strain or wear and tear on an OEM part, then you shouldnt expect the warranty to cover it when it fails.

something like a cat-back exhaust would be fine as all its doing is changing the sound of the exhaust.

 

[jfo]

If you want to be safe, I'd call a dealer and speak to their service manager about Genesis/Hyundai's stated position on mod's. I don't know if it's written in any of the documentation we get. I would also ask about any specific mod's you had in mind and if the dealer has any discretion.
I come from an Audi background. Audi had clear guidance for dealers with wide ranging restrictions on mods. They were required to add a flag to the VIN if any restricted mods were found and this "TD1 flag" would stay with the car. Lot's of guy's had warranty work excluded. Some dealers however were mod friendly and would make certain exceptions.
The idea that an intake or exhaust mod might not be related to a particular engine issue would make no difference...warranty denied. Given the potential for expensive warranty work to be denied, I would not just rely on a few forum comments.

 

[csu87]

If you want to be safe, I'd call a dealer and speak to their service manager about Genesis/Hyundai's stated position on mod's. I don't know if it's written in any of the documentation we get. I would also ask about any specific mod's you had in mind and if the dealer has any discretion.
I come from an Audi background. Audi had clear guidance for dealers with wide ranging restrictions on mods. They were required to add a flag to the VIN if any restricted mods were found and this "TD1 flag" would stay with the car. Lot's of guy's had warranty work excluded. Some dealers however were mod friendly and would make certain exceptions.
The idea that an intake or exhaust mod might not be related to a particular engine issue would make no difference...warranty denied. Given the potential for expensive warranty work to be denied, I would not just rely on a few forum comments.

technically, they have to prove the mod done affected the car. In reality, its an uphill battle if they want to fight you on it.

But what you said about talking with the service manager is the best advice. I had warranty work done on my old genesis coupe (tranny replacement twice and some engine/ECU warranty items) and i was heavily modded. The 1st time i had brought it in, i spoke with the service manager, talked to him about what I had done and what i was planning, and he was pretty cool about all of it and wouldnt flag me for mods. Also had similar experiences with my BMW before it was out of warranty. They even worked on it when it had a big single turbo and a lot of other mods without giving me any kind of fuss.

 

[Motogp69]

I am purchasing from CarMax and I know their MaxCare warranty typically covers mods which came with the car so they would have to prove I did the mods I assume?

My 340i had a modified front end which wasn’t installed correctly and killed both headlights from moisture getting into the light casings and they covered it no questions asked.

Didn’t even charge me the deductible.

 

[jfo]

I am purchasing from CarMax and I know their MaxCare warranty typically covers mods which came with the car so they would have to prove I did the mods I assume?

My 340i had a modified front end which wasn’t installed correctly and killed both headlights from moisture getting into the light casings and they covered it no questions asked.

Didn’t even charge me the deductible.

As with any insurance or warranty, you need to read the fine print rather than assume. At the end of the day, the only thing that matters is the actual wording in your coverage.

 

[tbands]

If you want to be safe, I'd call a dealer and speak to their service manager about Genesis/Hyundai's stated position on mod's. I don't know if it's written in any of the documentation we get. I would also ask about any specific mod's you had in mind and if the dealer has any discretion.
I come from an Audi background. Audi had clear guidance for dealers with wide ranging restrictions on mods. They were required to add a flag to the VIN if any restricted mods were found and this "TD1 flag" would stay with the car. Lot's of guy's had warranty work excluded. Some dealers however were mod friendly and would make certain exceptions.
The idea that an intake or exhaust mod might not be related to a particular engine issue would make no difference...warranty denied. Given the potential for expensive warranty work to be denied, I would not just rely on a few forum comments.

good point I'll definitely give them a call before I make any purchases.

 

[Samuel Holton]

Hi all, I'm experiencing the issue with my G70 that is systemic across their fleet models 2015-2024 (at least) of the ultrasonic weld and/or mounting screws on the headlights causing a major water leak. I'm about to take my car into the dealer and currently had made the following mods to the vehicle: Afe Twin Takeda cold air intakes, JB4, 2 step colder plugs, BMS oil catch can, TIAL BOV (Blow Off Valve), under-glow, and a Skar sound system. I am also concerned about the 'mods' being a point that the dealership attempts to dismiss the claim. I have pictures of the water leak, pictures of cracks from the mounting screws being factory over-torqued, a video of the front-end being perfectly aligned with the rest of the bottom, plenty of clearance (zero contact) between the headlight assembly and modded parts, the actual TSB (Tech Service Bulletin) covering the issue, diagnosis, and when warranty covers it. I'm prepared to argue and fight the good fight, but I'm hoping I don't have too. I have scoured online forums, like this, and noticed it's a mixed bag as far as if you get it or if you have to fight (even with modding). Does anyone have any advice they could throw my way?