HUNDREDS OF MOTORISTS are hitting difficulties along the east coast this morning as many roads remain impassable due to flooding.

There are also a number of cars that suffered water damage overnight – either after being abandoned on roads or left in flooded areas such as underground car parks.

Motorists have been advised not to try and restart any cars which may have been flooded. “If the car has cut out in flood water you should not attempt to restart it,” said AA Ireland spokesman Conor Faughnan.

It is very tempting to do so, but there could be water in the air intake and it will only take an egg-cup full getting into the cylinders to wreck your engine.

Because water does not compress, the action of the pistons can easily crack the pistons, cylinders, con-rods. This will literally destroy the engine. Diesels are particularly vulnerable.

He advised motorists who are driving when their car cuts out to push it to the side of the road if possible and call for help.

The Irish Insurance Federation has this morning advised policyholders that flood damage to cars will be covered by comprehensive insurance policies.

Motorists are also being warned not to attempt to drive through floods or any standing water that remains on roads. “It may be deeper than it appears,” said Faughnan. “The problem is also not so much the depth but the waves caused by vehicles, including a bow-wave in front of your own car. This can push the water up and flood your engine.”

He added that if it was absolutely necessary to drive through water, motorists should keep revs high and their speed low. Drivers are also advised to test their brakes after emerging from the water, lightly at first.

Read more: House flooded? Insurance advice from the experts>

Read more: Floodwaters recede but disruptions still in place across Dublin>

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