[Blubaron79]

I simply want to add a Dinan intake to my M340i. I paid for the extended warranty to 75,000 miles. Will BMW void my warranty on car?

I have tried to search and google this, and there seems to be no clear answer. Thank you guys.

[peelerec]

Originally Posted by Blubaron79

I simply want to add a Dinan intake to my M340i. I paid for the extended warranty to 75,000 miles. Will BMW void my warranty on car?

I have tried to search and google this, and there seems to be no clear answer. Thank you guys.

The clear answer is there is no clear answer. I agree with the notion that no aftermarket part(s) will automatically void warranty and should not void warranty, unless the dealer can unequivocally prove the specific aftermarket part caused damage.

Most enthusiasts will state that any aftermarket part will void warranty, however I truly believe that is the layman ideology in respect to automotive manufacturing/engineering. I am the type of consumer to yell, kick and scream if I am in the right. Thus, be prepared to have to escalate if needed should a dealer give you problems for any aftermarket part, which you should expect.

[KeepUp]

My understanding is that the simple answer is yes it voids the warranty. As soon as you take your car in for service they will know
It’s been modified - so no way to
“Hide” it. One local dealer sells and installs dinan exhaust and they sell aftermarket warranty for 2 yrs since it voids thr BMW one. That’s for exhaust, they do not do same for intake.

General consensus is “if you care about warranty, don’t mod” and if you want to
Mod then you gotta “pay to
Play”

[Bc2005]

There is no single mod that voids your entire warranty. However, if any mod leads to the failure of a warranted component, then that component is no longer covered. This can get complicated for the engine since everything is interrelated.

For example, you have a problem with the valve train or pistons on your engine. Was this related to your Dinan exhaust and/or special tune? Maybe not, but BMW may be able to describe a cause and effect - did the reduction in back pressure or new engine tune cause X problem, which led to Y failure, etc?

Your warranty coverage for unrelated problems remains unchanged.

[AM340iMiami]

I can’t imagine any scenario where an intake would void warranty. And I say that with 99.8 percent certainty.

[Dan B]

This topic has been discussed quite a bit

Keep in mind, the dealer gets paid by BMW if they do warranty repairs. BMW is the party most likely to deny a claim.

Basically the Magnuson Moss Warranty Act states, BMW must prove the part caused the failure to void the warranty on the failed part. Not the whole car.

You put an aftermarket wing on your car and it rusts where you drilled your trunk, BMW will not honor the paint and rust warranty for the trunk. Your radio dies, no BMW cannot blame it on the wing

You have an intake and spin a bearing, BMW could try to deny the claim. Will they? Depends on the dealer who submits it and the BMW rep who gets the claim.

If the dealer states "Aftermarket intake, track day numbers on car, log shows repeated RPM redline events, customer constantly sends us YouTube links of themselves at takeovers (stupidest fucking thing "car" people do)" that won't help your case.

If they state "Engine with 20K miles and failed bearing" you will probably get covered. Also keep in mind, your logs may be sent to BMW so if you are beating the crap out of the car it will not help your case.

I had an STi with a Cobb stage 2+ setup and spun a bearing at 23K miles. I took it to a Subaru dealer that sold Cobb parts and they submitted it to Subaru. Subaru covered it.

Finally, BMW has lawyers on staff to fight lawsuits. If you feel you were incorrectly denied and threaten to sue, it won't scare them. Your only real recourse is, and this is assuming something like you put on a wing and spin a bearing, take it to social media. But the reality is it will be an uphill battle against a corporate behemoth.

[Dan B]

Originally Posted by AM340iMiami

I can’t imagine any scenario where an intake would void warranty. And I say that with 99.8 percent certainty.

How about, you install an intake, it fractures and your engine ingests a piece of it. That will 100% not be covered.

You install an intake and in the process you damage a sensor that leads to engine failure. Not covered.

Be careful making blanket statements. If I can think of this BMW has certainly thought of this and many more scenarios.

[Manta]

Unless you are prepared to go to court, don't count on the Magnuson-moss warranty act to protect you. Dealers and especially service technicians do not want to work warranty jobs and will deny your claims if they can find a reason or excuse, they are paid significantly less then out of pocket work.

[Classique]

When I got the extended BMW warranty I did ask if mods would immediately void it and I was told "Intake and exhaust you'll be fine just don't swap turbos and have a built engine" so I think you'll be fine best idea would be to consult with your dealer though