Question about 2003 BMW 325

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Anyone know anything about something called "Stop Leak"?

My car completely broke down and the dealership is saying that it's because something called "Stop Leak" was put into the radiator. The car is under warranty but they don't want to pay for the repairs because they say that I improperly maintained the car but I have never put this stuff in there nor did I ever authorize anything like that. I just bought the car last September and the previous owner claims to have only had the car taken to the service dept at the dealership. They are saying that this stuff totally clogged up my whole cooling system and caused the car to overheat and that now the entire engine needs to be replaced. Is this reasonable?! HELP! The car is a 2003 BMW 325i if it matters.

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  • luci_fer182 May 21, 2009

    Thank you so much for your response :-) I should clarify that it is an extended warranty through a different company, not BMW. Does that even matter? The warranty was bought by the previous owner after the factory warranty expired and it was transferred to me. Also, the car was in taken to a different dealership right before I bought it to have the thermostat replaced. If all of this were to be true, is it something that should have been caught then?

  • luci_fer182 May 21, 2009

    Also, the dealership that it's at now first said that the thermostat went out (which was replaced by BMW 8 months ago) and that's what caused the rest of it and now they are saying it's the "Stop Leak" - why should I believe them? The whole time, they have had this very arrogant and unhelpful attitude which has caused me to have major trust issues with them... I wish I knew anything about cars because I don't understand how any of this works to know if it makes any sense or not. It has only been taken to dealerships so I don't even understand where this junk would have come from either.



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No, this is a dealer trying to get out of replacing an engine. I would talk to a lawyer and have them call the dealership. Stop leak VERY rarely clogs and I have never heard of an engine hurt by today's radiator stop leak. Maybe back when they put black pepper in the radiators to stop leaks that would happen but not now. PLUS BMW's have such great cooling systems that it would never happen.

Posted on May 21, 2009

  • Tyson Strickland
    Tyson Strickland May 21, 2009

    It al depends on what actually happened to the engine. If the previous dealer wasn't looking for it they might not have found any problem.



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