MOT Certificates?

Phil W · 12 Oct 2006 at 13:50

What do the up to date/revised ones look like?

I'd be lying if i said i didnt have a new-style certificate, i just can't remember

Phil

Jonny69 · 12 Oct 2006 at 13:59

It's a massive A4 thing with printy outy bits on it and green/pink VOSA logos all over it.

GT3 · 12 Oct 2006 at 14:00

A4 white thickish paper with green boxes on it.

L0rdMike · 12 Oct 2006 at 14:02

You also get a red and orange one depending how bad your car did.

Phil W · 12 Oct 2006 at 14:03

I know what size they are and what colours they come in

I meant information...

I.E

Make, Model, Colour etc etc??

moss · 12 Oct 2006 at 14:05

Got mine in front of me here,
has
MOT Test Number
Make
Odo Reading
Reg Mark
Model
Test Class
Vehicle id or Chassis No
Colour
Approx year of first use
Design gross weight

GT3 · 12 Oct 2006 at 14:17

Phil W · 12 Oct 2006 at 14:26

Ok, my next question is...

My brothers Saxo (1.1) failed on emissions (probably because the backbox was blowing) so he fixed it and the emissions were fine and it passed.

What determines whether it passes on the emissions or not? I.E is the emissions tested on engine size (say for example 900cc to 1400cc etc etc)?

For once my brothers asked me a question that i'm afraid to say, i can't answer :confused:

Beepcake · 12 Oct 2006 at 14:29

Phil W said:
Ok, my next question is...

My brothers Saxo (1.1) failed on emissions (probably because the backbox was blowing) so he fixed it and the emissions were fine and it passed.

What determines whether it passes on the emissions or not? I.E is the emissions tested on engine size (say for example 900cc to 1400cc etc etc)?

For once my brothers asked me a question that i'm afraid to say, i can't answer

They plug it into the computer and it tells them whether it passed or not

As far as I know there's no difference to the pass/fail levels, regardless of engine size, it's the same for everything.

Phil W · 12 Oct 2006 at 14:34

So i've been slightly mislead in thinking that the bigger engine, the higher the emissions hence different levels? So its universal?

I would assume petrol / diesel would have different ones though?

moss · 12 Oct 2006 at 14:35

Beepcake said:
They plug it into the computer and it tells them whether it passed or not As far as I know there's no difference to the pass/fail levels, regardless of engine size, it's the same for everything.

I couldnt give the exact requirements etc, but im sure it varies depending on the car.

dangerousmouse · 12 Oct 2006 at 14:36

Beepcake said:
They plug it into the computer and it tells them whether it passed or not As far as I know there's no difference to the pass/fail levels, regardless of engine size, it's the same for everything.

they check the ppm for certain gasses that are in the exhaust fumes. there is a set threshold limit for this, so it is the same for every vehicle.

Beepcake · 12 Oct 2006 at 14:38

Diesel might be different, but i'm pretty sure all petrols are identical, it's a ppm reading, so there shouldn't need to be any need to compensate for engine size.

Jez · 12 Oct 2006 at 14:57

Phil W said:
So i've been slightly mislead in thinking that the bigger engine, the higher the emissions hence different levels? So its universal?

I would assume petrol / diesel would have different ones though?

Why would engine size have anything to do with it? Its a measure of emmisions content, not how much there actually is.

Diesel's have a completely different test to petrols as far as i know. In reality ive never had a car which has come even a 10th of the way to failing on emmisions so there must be something very wrong with the car for it to be over.

moss · 12 Oct 2006 at 14:59

I could be wrong, but iirc its based on the age of the car, im sure older cars have a less strict test?

Beepcake · 12 Oct 2006 at 15:02

Jez said:
Why would engine size have anything to do with it? Its a measure of emmisions content, not how much there actually is.

Diesel's have a completely different test to petrols as far as i know. In reality ive never had a car which has come even a 10th of the way to failing on emmisions so there must be something very wrong with the car for it to be over.

The only one i've ever seen a car fail on was the Lamda test.

Phil W · 12 Oct 2006 at 15:02

Jez said:
Why would engine size have anything to do with it? Its a measure of emmisions content, not how much there actually is.

Hence why i asked.

I was under the impression that say for example a 1.1 Saxo would emit "less" that say for example, a 3.0 Jaguar.

Which is why i was under the impression there may be different "classes" or criteria on which a car passes the emissions test.

:confused:

Jez · 12 Oct 2006 at 15:03

Indeed it would produce less emmisions than a 3.0 Jag, but the test isnt on quantity, its on content.

Phil W · 12 Oct 2006 at 15:13

Ah, so...

It doesnt matter if its a 3.0 or a 1.0, say for example the cat is on its way out, that will alter the "quality" (not sure what is meant by this) and hence fail the test?

Jez · 12 Oct 2006 at 15:16

Yeah. To put it very simply for every KG of exhaust gas, there must be less than a certain weight of certain things. Thus the engine size is irrelevent

MOT Certificates?

Man of Honour