Vehicle & Technical > Discovery

mot test - true or false ?

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Mark2Disco:
hi

is it true or false  that to mot a permanent all wheel drive car such as discovery it should be brake tested on a double rolling road and not on a single one

testing on a single one and then selecting neuteral in both gear boxes and then testing causes damage ?  true or false ?

does this causes damage to the gear boxes ?

and finally anyone know where to take mine for mot in birmingham

thanks
mark

Xtremeteam:
it can be tested on a single axle brake roller by putting both the Tbox & g box into neutral with no problems,

However if it has a borgwarner Tbox (Tbox lever says H-N-L) then it cant be done

Range Rover Blues:
MOT stations have had a memo to this effect last year, we arn't the only grooup who have this problem, any car with a LSD of any sort will cause potential damage and can harm the tester in extreme circumstances.

Richie_EB4:
The other way is to use a meter that sits on the floor of the car and when driven out on the road the tester can apply the brakes and the tilt meter gives him a reading..........not very effective IMO...........also watch the tester when he try's the hand brake  :o .........seen some very nasty results from these been applied when moving.

hobbit:

--- Quote from: "Richie_EB4" ---The other way is to use a meter that sits on the floor of the car and when driven out on the road the tester can apply the brakes and the tilt meter gives him a reading..........not very effective IMO............
--- End quote ---


True, this is how its done at my local, also he's checking for any pull on the system either left or right and front and rear, also when inspecting the brake system on the ramp he will pay close attention to any obvious problems round the brakes which would normally show up on the rolling road test

As far as the handbrake goes he applies the brake and then lets the clutch out slowly to see how much hold the handbrake can take. Also parking on a hill as he goes round the block

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