Hi hope someone can advise me,
we bought a Vauxhall zafira 1.6 petrol 2011 plate in sept 2014 with a 12 months network q warranty.
In January we had a engine light come on,
I checked under the bonnet and noticed there was hardly any coolant in the expansion tank,
I topped it up and the light went out.
Took it to a local Vauxhall dealer to get it checked out,
after much scratching of heads they fitted a thermostat saying the thermostat had partially closed
and pressurised the system to such an extent it lost coolant through the expansion bottle.
We took it away but checked the coolant level a few days later as it didn't seem to be running correctly it had dropped down again,
second visit to dealer resulted in a new water pump.
The wife noticed after two weeks the heating had stopped working and the coolant had dropped again,
we took it back for it to be checked out
I suggested a head gasket issue, they acknowleged the coolant had dropped again but topped it back up
and did a block test which was negative then said they had performed various checks but couldn't find a fault
and asked us to keep an eye on it. We weren't happy with this,
after a couple of days the coolant had dropped,
we decided to take it to another Vauxhall dealership who found water in the cylinders and suspected head gasket
we gave permission for them to strip it down.
They found the head gasket had not failed but the engine block had warped thus water was escaping in between the block and head.
An engineer was requested by the warranty company,
they rejected the claim saying the head bolts had loosened over time and caused the warping and therefore not a sudden failure and not covered.
What do I do now,
do I go to motor codes?