|
|
|
|
| Author |
|
|
Guest
Posts: n/a
|
I have a 2007 525i. The engine temp went up, i add water because the coolant was low. shortly after that the heater stopped working. it keeps running hot, unless i let it warm-up with the resevior cap off. now the belt broke. Any suggestion on what could be wrong.
__________________ This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: BMW Thermostat Replacement |
||
05-31-2013, 03:36 AM
|
|
|
Moderator
Join Date: Jul 2012
Location: New England
Posts: 3,189
|
This could be a faulty head gasket. Check operation of the water pump and thermostat. If they are functioning normally, check the head gasket. My preferred way to check it is to check the cooling system for Co2.
- Nick |
||
|
05-31-2013, 03:36 AM
|
|
|
Registered
Join Date: Mar 2009
Location: Northern Virginia
Posts: 269
|
If the belt broke, it may have been running stretched to a point where it no longer spins the water pump efficiently, it may have been slipping on the water pump pulley. That may explain the engine running hot.
Mine is a 1998 528i, it has a separate electric pump for the heater. I am not sure yours has that. |
||
|
06-24-2013, 08:38 AM
|
|
