Overheating Head Gasket Changed

[Sher]

Following the 2nd time I've had to stop due to overheating on foreign motorways, 63,000mls and 119.000 miles I at 1st suspected water pump failure again.

In Spain I use a smallish 1 man operation (little English) but good on VW/Audi diesels, perhaps not the latest models.. No problem understanding Alternator Workshop clutch failure and overheating due to pump failure. But too hot on the Galaxy itself.

 

He changed water pump, alternator belt and tensioner but it showed no sign of failure (

[Amarok]

Following the 2nd time I've had to stop due to overheating on foreign motorways, 63,000mls and 119.000 miles I at 1st suspected water pump failure again.

In Spain I use a smallish 1 man operation (little English) but good on VW/Audi diesels, perhaps not the latest models.. No problem understanding Alternator Workshop clutch failure and overheating due to pump failure. But too hot on the Galaxy itself.

 

He changed water pump, alternator belt and tensioner but it showed no sign of failure (

[Sher]

Sorry if it seems confused I wasam working with flaky wifi on a Spanish Campsite.

 

Overheating sorted by head gasket change. That overheating was caused by the gases blown into the cooling system pressurizing it and blowing out coolant.

 

When I have driven the Galaxy with and without the caravan attached the Fuel usage seems to be ( according to the onboard display) 10-15% worse than it used to be.

 

Is it possible for the timing belt (responsible for the fuel injection timing) to be slightly out ( 1 notch?)

 

Or is it required to adjust the injection timing electronically to get back to the original performance?