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Car MOT Manual 2012 onwards






Body, Structure and General Items - 6.5 Speed Limiter Plate

Information
This inspection applies to all vehicles which are required to be fitted with a Speed Limiter. Vehicles required to be fitted with a speed limiter are:
Vehicles with more than 8 passenger seats w ith:
a maximum speed in excess of 100km/h 62.14mph, if a speed limiter were not fitted, and
a DGW not exceeding 7500kg and first used on or after 1 January 2005, or
a DGW exceeding 7500kg and first used on or after 1 January 1988. Vehicles with more than 16 passenger seats:
with a maximum speed in excess of 112.65km/h 70mph, if a speed limiter were not fitted, and
with a DGW exceeding 7500kg, and
first used between 1 April 1974 and 31 December 1987.

Note: Vehicles with a DGW not exceeding 7500kg with Euro III or later engines, first used between 1 October 2001 and 31 December 2004 are required to be fitted with a speed limiter. Specific identification of these vehicles is not required however, if it is obvious that a speed limiter is fitted then it must meet the requirements of this inspection.

This inspection is confined to those parts that are readily visible without dismantling. Some vehicles may have been modified by, for example, changing the rear axle ratio and will no longer be capable of exceeding 100km/h. If a vehicle presenter claims that this is the case, he must produce a signed declaration stating the specific reason e.g. low ratio axle fitted why the vehicle is no longer capable of 100km/h. Note: Speed limiters wired through ignition switches are acceptable but any other devices that could enable the speed limiter to be switched off while driving are not. Tamperproof devices may also take the form of mechanical and electrical connections that require the use of special tools, normally only available from vehicle/component manufacturers for disconnection or adjustment purposes. These are acceptable instead of the tamperproof devices referred to in MoI 4.

Modern tamperproof devices are electronic and therefore not possible to check. A vehicles DGW should be taken from the manufacturers plate. For vehicles first used before 1 April 1982 not fitted with a manufacturers plate, multiply the maximum number of passengers and crew, excluding the driver, by 63.5kg and add the kerb or unladen weight displayed on the side of the vehicle to obtain the calculated laden weight, which should be used instead.
Method of Inspection
A. Speed Limiter Plate

1. Check that a speed limiter plate is securely fixed in the drivers compartment in a conspicuous position.

Note: If the plate is fixed to the drivers compartment window it is acceptable for the details to face inwards or outwards, provided that exterior facing plates can be read by a person of average height.

2. Check that the plate is clearly and indelibly marked with the speed at which the speed limiter has been set the speed may be shown in mph or km/h.

Note: The character and composition of the plate and size of lettering are not important provided the details are legible.

B. Speed limiter

1. Check that a speed limiter is fitted and secure.

2. Check any exposed actuating rods/cables for disconnection or damage.

3. Check any visible electrical wiring that energises the speed limiter for disconnection or potential easy disconnection by unauthorised means.

4. Check as far as possible the presence and condition of tamperproof devices such as seals, lock nuts, pins, wires, plastic inserts, sealing compound or sealing paint on mechanical and electrical connections.
Reason for Rejection
1. A speed limiter plate:
a. missing or insecure
b. not in a conspicuous position.

2. A speed limiter plate:
a. not clearly and indelibly marked with the set speed
b. shows a set speed greater than that permitted see information column.



1. A speed limiter not fitted or insecure.
2. Actuating rods/cables disconnected or damaged to the extent that the operation of the speed limiter is obviously affected.
3. Electrical wiring is obviously disconnected or can be easily disconnected by unauthorised means.
4. Tamperproof device missing or defective, or showing evidence of obvious disturbance.





Reproduced from the MOT Inspection Manual by kind permission of THE VEHICLE INSPECTORATE.
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