q96169we said:ori said:I’m always concerned about using non bmw approved tyres. Shouldn’t affect warranty right?
It depends on how you interpret "affect warranty". Your warranty won't be void by using non-star marked tyre. However, if you report any drivetrain issue or running noise issue etc., dealer may make you swap back to star-marked tyre first before they carry out further diagnosis and repair under warranty unless the issue is very obvious.
This is my experience. On my previous F10, it developed a bad bearing noise when the car was still under 3 year manufacturer warranty. Dealer did the normal diagnosis and checked all four wheel bearings and no issue at all. They then told me because the car was fitted with CrossClimate tyres which are not star-marked, BMW won't authorise further diagnosis under warranty if the tyre are not within manufacturer spec (star-marked). Thus, I need to fit star marked tyre first (by dealer or by myself, the dealer doesn't care) for them to be able to claim diagnosis labour from warranty. I asked them if I fit the star marked tyre and send the car back, will the warranty cover the cost of repair if they then find the issue. Dealer told me that the warranty is all valid and not voided so if the failed components are covered, then I don't need to pay anything. I asked two dealers back then and both dealers told me the same story.
Thanks for the info
I’m keeping all existing tyres in cast of emergencies as every one is still legal. If the situation you are quoting was unfortunate enough to arise I’d just get a local tyre place to swap all the tyres back over before putting the car to BMW. Worst they could do is advise me all tyres were very close to the legal limit but they’d all still be star marked.