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Discussion Starter · #1 ·
Hello
I am new to this forum.hi to all.
I have a 312D sprinter 1999 model.
Recently changed thermostat and water pump , from suspected failure of one of these.They didnt look healthy once removed!!
I still have no circulation thru to the header tank.
I suspect an air lock.How do I remove an airlock?? Or setup to remove one.

Symptoms - temp gauge gets to around 95-100 C. No cabin heat produced inside(max hot set). No hot water in header tank.
When thermo and water pump was fitted. I filled the engine with coolant via the upper hose junction. Currently system has around 6.5 litres of coolant in there , but cant get it to circulate to header.Header stays cold at 100 C.
HELP please.......
Marty
 
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