mot

[Skids]

will rusty sills fail an mot

[rugeleyboy]

they hit them with a small hammer and if a hole appears within 6" of safety point i think this is a failure??

i may be wrong but perhaps someone can comfirm??

[RATTER15]

I think it depends on the car, if it is a structural part of the car, any rust on sill will fail an MOT

[NORMANTHEDOG]

why dont you put some underseal on them.

[buildersmate]

Underseal isn't resistant enough to small hammers.

[__LEE__]

Any corrosion within 30cm of a structural point will fail an mot.
And a rust hole outside of this area which is big enough to get your finger in will fail as well.