surf 2.4td heater

[took]

i changed the engine oin my surf but cannot seem to get the heater to blow hot air it is slightly hot but not hot enough any ideas

[TonyN]

check coolent level, at cap, not the expansion tank.

make sure the heater control is working the valve on the bulkhead

if thats ok you may need to flush through the heater matrix with a hose and see if its blocked.