MOT & LSD

[roygarth]

993RS is due for MOT. Sure I read somewhere recently something about telling MOT station not do something/a particular test as car has LSD?

Realise this is all a bit vague but does anyone know anything?!

Thanks
Piers

[iguana]

Its to do with the LSD & the individual each side rear brake test on the rolling road.

Well worth letting them know, but won't case any damage as the rollers roll so slowly & the lock up rate rate of a road car LSD is not that high, worst that will happen is the car will gently pop out of the rollers as they do the test.

[clubsport]

I posted the original question about a month ago.
The specialist who looks after my car told me that for short tests it is ok, but prolonged action could cause wear on the diff plates.

When I got to the MOT station I mentioned to the tester that I had a slight concern about the lsd on the rollers, his response was not to test the brakes at all!
I did try the fronts to see how strong the big reds were.

[clarkey]

My Caterhams always had the brakes tested by a road test with a hand held thingie, never on the rolling road. You are able to insist on this being done.

[roygarth]

Thanks guys!
Piers

[UK952]

Yes, depends on the tester but in the big Mot testers book it says you should go for a drive on the road with the G meter thingy. It actually says the fronts shouldn't even be tested on the rollers which struck me as a bit strange - could be a time issue. At my local garage one guy (mechanic does MOTs when the other guy on holiday) won't put it on the rollers and lets me drive while he nurses the meter. The other (regular MOT guy) says it will be OK and uses the rollers.
Tony