M O.T Questions (not MG/Rover related)

neilb740 · 29th August 2018, 19:10

I will be taking the wife's Lexus for an MOT on Saturday and that got me thinking.
How do they test emissions on a Hybrid?
The engine doesn't run unless you are moving and the accelerator pedal doesn't rev the engine even if it was on.

I have no specific use for the answer to this question, I'm just being curious and geeky lol

Phil-T4 · 29th August 2018, 19:43

We dont check them

stevestrat · 29th August 2018, 19:53

Think I could convince them the 260 is a hybrid

neilb740 · 29th August 2018, 20:04

Quote:

Originally Posted by Phil-T4

We dont check them

really! That does suprise me.
So hybrids could be belching out all sorts of emissions and nobody would ever know!

ZedTeeT · 29th August 2018, 20:53

Quote:

Originally Posted by stevestrat

Think I could convince them the 260 is a hybrid

In a word.......... No...........

first-things-first · 29th August 2018, 21:19

Took my old Prius to Toyota to get MOT'd. Believe there is a special method of pressing accelerator and button presses to keep the engine on so they test the emissions.

I'm sure Toyota dealers will also have their diagnostics to easily do the same.

Phil-T4 · 30th August 2018, 05:39

Quote:

Originally Posted by neilb740

really! That does suprise me.
So hybrids could be belching out all sorts of emissions and nobody would ever know!

Correct, this is what the manual says...

8.2.1.2 Gaseous emissions
You must inspect vehicles with spark ignition engines first used on or after 1 August 1975.

You don't need to check:

L category vehicles
hybrid vehicles – with electric and combustion engines
hydrogen fuel cell vehicles
two stroke engines – unless they are subject to a catalyst test

29th August 2018, 19:10	#1
neilb740 I really should get out more....... MG ZT 1.8 Join Date: Oct 2011 Location: Crewe Posts: 2,298 Thanks: 110 Thanked 362 Times in 237 Posts	M O.T Questions (not MG/Rover related) I will be taking the wife's Lexus for an MOT on Saturday and that got me thinking. How do they test emissions on a Hybrid? The engine doesn't run unless you are moving and the accelerator pedal doesn't rev the engine even if it was on. I have no specific use for the answer to this question, I'm just being curious and geeky lol Last edited by neilb740; 29th August 2018 at 19:13..

29th August 2018, 19:53	#3
stevestrat This is my second home ZT260 #243 (resting) Join Date: May 2010 Location: Prestonpans Posts: 22,612 Thanks: 650 Thanked 4,624 Times in 3,358 Posts	Think I could convince them the 260 is a hybrid __________________ Steve T4 Location Map

29th August 2018, 19:43	#2
Phil-T4 I really should get out more....... MG ZT-T, Rover 75 Tourer Join Date: Mar 2011 Location: Olney Posts: 2,969 Thanks: 245 Thanked 1,088 Times in 657 Posts	We dont check them

29th August 2018, 21:19	#6
first-things-first Posted a thing or two MG ZT Join Date: Jul 2014 Location: Hornchurch Posts: 1,255 Thanks: 176 Thanked 352 Times in 272 Posts	Took my old Prius to Toyota to get MOT'd. Believe there is a special method of pressing accelerator and button presses to keep the engine on so they test the emissions. I'm sure Toyota dealers will also have their diagnostics to easily do the same.