hello, i have a fabia 1.4 mpi,and over last few days noticed i am filling coolant tank up every couple of days,looked for any signs of coolant leak none anywhere?

any ideas 

regards.

Check your oil filler cap have you got white mayo in it sounds like mine was head gasket mate 😥

Head gasket failure.

 

Easy and cheap to fix 

2 hours ago, sdc46 said:

none anywhere?

You sure? Not even a rising oil level or white vapour coming out the exhaust (both signs of HGF (qv)).

hi no leaks,no oil deposit in expansion tank,no white vapour coming fron exhaust.

This morning, before you start the engine, pop the bonnet and unscrew the lid of the expansion tank. Listen for any hiss of escaping pressure. Tell us if you hear anything or not.

Just replaced my head gasket. Maybe this will help you fault diagnose...... my symptoms where:

- Loss of coolant with no leak (used dye and UV pen to check for leaks and non apparent)

- Pressure in expansion tank the following morning after being sat overnight

- Coolant level falling below minimum line in expansion tank when engine was warm then rising above line when cap removed (exhaust gasses getting into coolant system over pressuring hoses then pressure being released when cap is removed)

- No signs of mayo oil cap

- No smoke from the exhaust

 

I managed to change the head gasket myself for less than £200 but you'll need tooling and it took me three days. I think a garage will charge well in excess of £1,000 probably more than the value of the car.

 

 

It's half a days work and the cost of a gasket set and a skim at the machine shop, less than £500 all in would be my estimate.