Stuck no heat on drivers side E38
Hi my water pump broke.I have replaced it,thermostat,fan coupling ,radiator,expansion tank,top hose,heater core,heater valves. Still no heat inside passenger side gets warm and driver side cold. There is no air in the system the temp gauge stays in the middle. The top hose stays soft and doesn't pressurise. Not loosing water either.
Do I need to check the head gasket and head ??