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      02-07-2013, 10:08 PM   #1
kerrit
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Random coolant leak out of nowhere

Writing this post mostly to vent.

My 26k mile M3 that I keep mint decided to start spewing coolant. I couldn't find the leak so I took it to a local independent BMW shop for diagnosis. Apparently a hose behind the block that goes to the heater core is leaking. Quote is 10 hours to replace because they have to take off the plenum.

They actually suggested I contact the dealer and see if they might be able to do a goodwill repair because of my low mileage and this is a part that doesn't really fail ever on any newer BMW. My warranty expired the middle of this past May.

If I don't get help, maybe I'll tackle the job myself - the throttle actuator DIY included plenum removal and doesn't look that hard.

Anyone ever had to replace any coolant hoses on the back of the engine?

Anyone have any similar success with goodwill repairs?

Thanks!
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      02-08-2013, 05:31 AM   #2
Mike Benvo
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48k almost and 2008 here.. never replaced a single hose.

Just the belts about 100 miles ago, ICV, and fuel pressure sensor + spark plugs once. These are next on your list!
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      02-08-2013, 08:52 AM   #3
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I had success with goodwill repairs. Suggest you at least go to the dealer to see what they can do. In Germany they input the request to Munich & if it comes back negative, they will follow up with a call. The call for me was successful.
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      02-08-2013, 11:19 AM   #4
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See if the dealer will cover it under good will, if not then just do it yourself.
Removing the plenum is not overly difficult. And the hose is not that difficult to access.

I'll attach the step by step directions I used when I installed my ESS kit, it may help
FWIW I had never even changed the oil on a car before I installed my SC. It's all pretty basic as long as you have step by step directions.
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      02-08-2013, 06:19 PM   #5
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Quote:
Originally Posted by j2m View Post
See if the dealer will cover it under good will, if not then just do it yourself.
Removing the plenum is not overly difficult. And the hose is not that difficult to access.

I'll attach the step by step directions I used when I installed my ESS kit, it may help
FWIW I had never even changed the oil on a car before I installed my SC. It's all pretty basic as long as you have step by step directions.
Thanks for the instructions! Very helpful.
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