Does my engine need a new head gasket?

Tiny
LMGWILLIAMS
  • MEMBER
  • 2007 BMW Z4
  • 3.0L
  • AUTOMATIC
  • 88,000 MILES
At first, I noticed a small amount of water underneath the radiator area. Then drove it an hour away to work. On my way the radiator light came on and went off, came on and so forth. I had a mechanic who frequently works at my job put more antifreeze in it. It drove home great! But still had a leak. My boyfriend told me that I need a new head gasket, because quote, "I got it way too hot, and blew the head gasket!” He then took my “new” car and parked it at his friends. He bugs me to get a new head constantly! The car runs great, there is no white smoke, or water out the tail pipe. And last time I drove it, the water was all between the back of grill and radiator. I was also told that before a BMW gets too hot, it will shut itself down. Please help with my diagnosis.
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Friday, August 5th, 2022 AT 2:10 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Did the engine overheat at any point? Was it still running good when you got home? Also, why does he feel it needs a head gasket? Is there an indicator that he noticed?

Do me a favor. Take a look through this link and let me know if anything discussed was noticed on your vehicle:

https://www.2carpros.com/articles/head-gasket-blown-test

Also, let me know if the location of the leak was found. If it never overheated and is still running well, chances are you just need to locate and repair the leak.

Let me know.

Joe

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Friday, August 5th, 2022 AT 9:03 PM
Tiny
LMGWILLIAMS
  • MEMBER
Thank you for your reply! No, the car never overheated. As far as I know. Never did it strand me someplace. It is a BMW and I have been told that they will shut down before overheating. And yes, still to this day it runs great. Except all the water that ends up on the inside of grille and radiator. Said he did a pressure test and something about the torn gasket being between the 2nd and 3rd cylinders. (?). But he said that was the problem before even doing the pressure test. Also, he said that the water blows out where it does because of the pressure from the head gasket. I m wondering why it can t just be as simple as a hole in radiator or hole in upper radiator hose? Just looking for another possible solution before my car is all apart in hundreds of pieces. Linda
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Sunday, August 7th, 2022 AT 8:23 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

That is really tough to dispute what he is telling you without being there to see it. Where is the coolant leaking from at the radiator? In other words, is it the radiator that is leaking, the overflow reservoir, the radiator cap, or somewhere other? If the head gasket is bad, it can force air into the cooling system.

If you could take a few pics of what you are seeing and upload them for me, it may help.

Let me know.

Joe
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Sunday, August 7th, 2022 AT 9:46 PM

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