wouldit be the bumper?

 

It does not have sensors. I am sure the ecu has an accelrometer in that measures the speed etc and fires if need.

Only sensors that I know of are the side sill ones.

Could be wrong mind but I am sure thats how it works, whats your problem?

 

I'm pretty sure this is correct, I've heard this several times before so I have no reason to doubt this information. Hope this helps

 

airbag

Had a friend do a diagnostic on airbag system and system was fine except for the offside impact sensor any ideas were it is located as iam now stumped i have been offered offside and nearside impact sensors for £30 but dont even know what they look like and no reference in haynes manual.

 

I'm sure i've seen it located by the radiator

 

Seen what located by the rad?

The SRS system in the 100/200/400/Mini and all of the newer models derived from these models use an accelerometer in the ECU itself. As has been said if there are any external sensors then they are fitted in the sides of the car. AFAIK this is only the case with the 400/45/ZS where 75/ZT seats are fitted with the side airbags.

 

The side impact sensors are fitted to the sills below the carpet.

 

indeed,
the main SRS ECU is behind the hand brake under the storage bit inbetween the front seats.