S55 intercooler leaking

Ok here I have the intercooler removed on a S55 engine,,,,the customer complained that’s he is losing coolant for intercooler ,,,so I pressure tested the cooling system and found the intercooler is leaking internally.Here a picture inside the intercooler,,,you can see some coolant condensation on the walls of the cooler.

This entry was posted in Uncategorized. Bookmark the permalink.

10 Responses to S55 intercooler leaking

  1. JC says:

    I suspect you’re going to see more of these since this leak is getting traction on BMW forums.


  2. Kotletachka says:

    Fantastic plastic!


    • The problem is not the plastic,,,,it’s leaking internally where the aluminum core is,,,if it was the plastic we would be leaking on the outside.


      • Kotletachka says:

        Same issue with Toyota engine/trans coolers. Ends up mixing the two fluids together and blowing the trans. Not a fun thing to tell customers.


  3. Looks easy to swap out!!


  4. Looks easy to swap out

    Liked by 1 person

  5. erik says:

    was it misfiring ?


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.