Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club General Forum
Register FAQ Image Gallery Members List Calendar Search Today's Posts Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 21st May 2018, 22:23   #1
MGR South Devon
Premium Trader
 
ROVER 75 TOURER

Join Date: Aug 2007
Location: Newton Abbot
Posts: 460
Thanks: 9
Thanked 173 Times in 82 Posts
Default New MOT testing rules and diesels

No doubt by now most members are aware that as from 20th May there are much tighter emission limits coming into force for diesel vehicles.
A lot is to do with later vehicles with DPF systems, but there have been some changes which may well affect our MG Rover diesels.

As an MOT test station, our gas analyser was upgraded last week for the new emissions. We are now holding our breath as to how it will effect the many MG Rover diesels that we test.

At the end of last week, we tested a 75, not for test purposes, to check out a replacement cat we had fitted. We used the new emission rules and we were unable to get the car to pass. Fortunately, the MOT does not run out until Jan 2019, so the only action we took was to offer the owner a diesel fuel cleaner and hopefully that may eventually sort the problem out.


Initially, our thinking was that hopefully if a car fails, with the addition of a good fuel cleaner and a good run up the road, the problem may be resolved,
but this morning we carried out our first official test under the new rules and again we could not get the car to pass.

Before we resorted to the diesel cleaner, we did a T4 test to check injectors and did find a problem with two of them which may have contributed to the failure. We have now removed injectors, cleaned and replaced injector seals
which were leaking and hopefully this will resolve the problem, as well as changing the breather filter which was bad.

Until we have tested a few more diesels, we do not know how problematic the new emission test will be for our cars. We are going to monitor the situation to see how things go, and will be happy to let other forum members know the results of how many cars may be affected and what can be done to resolve any of the problems.

Our greatest fear is that there will be many MOT test stations that will try to write these cars off if they cannot or will not try to get them through the gas test.


Of course, this does not only apply to MG Rover, but could affect older diesels across the board -we shall have to wait and see. Will be interesting to see if our local breakers start getting more diesels in for scrap in the coming months!
__________________
MGR South Devon is offline   Reply With Quote
The Following 19 Users Say Thank You to MGR South Devon For This Useful Post:
Old 21st May 2018, 22:32   #2
trikey
Premium Trader
 
trikey's Avatar
 
Rover

Join Date: Nov 2010
Location: Norfolk
Posts: 19,419
Thanks: 3,447
Thanked 5,637 Times in 3,461 Posts
Default

Are the required figures lower than when the car was new? If so I don't see how they can enforce that as surely a vehicle can only meet the standard that it was designed to?
trikey is offline   Reply With Quote
The Following 4 Users Say Thank You to trikey For This Useful Post:
Old 21st May 2018, 22:49   #3
Mickyboy
THE SPARE PARTS GUY
 
Mickyboy's Avatar
 
MG ZT CDTI 135 + & MGZT CDTI AUTO 160 & ROVER 75 TOURER CDTI 160 TROPHY YELLOW

Join Date: Aug 2013
Location: Hernebay
Posts: 3,278
Thanks: 508
Thanked 1,444 Times in 780 Posts
Default

Facelift CDTI models are 1.33, they canít expect to change these limits, new analyser or not, that limit should still be the same
Mick
__________________

T4 Owner
Jobs done : new UBP, Spy hole mod, Rear hub(wheel bearing),plenum cleaned and emptied, Inline thermostat fitted,Full service, In car Digital tv/DVD Bluetooth Satnav etc, Replaced UBP, Restored headlights,Fixed airbag connection.replaced HP pump,replaced rear light seals,changed intercooler O rings.

Jobs to do: ,replace drivers lock,.
[/SIZE]
Mickyboy is offline   Reply With Quote
The Following 3 Users Say Thank You to Mickyboy For This Useful Post:
Old 21st May 2018, 23:03   #4
Arctic
Give to Learn
 
Arctic's Avatar
 
MG ZT 190

Join Date: Aug 2010
Location: West Midlands
Posts: 12,014
Thanks: 503
Thanked 2,853 Times in 1,752 Posts
Default

We were talking about this at the last nano, and preface lift CDT are 1.00 and may struggle if not in tip top condition as well as the CDTI as you say 1.33 therefore it is best to make sure before your test, change the PCV filter, Air filter, maybe the oil, & it's oil filter, maybe now combining your yearly service around your MOT time.

Drop in some diesel cleaner at the same time, then give it an Italian tune up 30 minutes before you get to the MOT station I have always done this anyway.

It will be good to follow this thread to see how the OP gets on over the next few weeks and months.
__________________
Arctic
Givology Learn to Give
Everything is Achievable

ad altiora tendo.

Check out the 2018 meet dates
http://www.midlandsnanomeets.co.uk/meets_2014.html
" You do the work , we supply the expertise "
Arctic is offline   Reply With Quote
The Following 2 Users Say Thank You to Arctic For This Useful Post:
Old 21st May 2018, 23:09   #5
Richard1973
Avid contributor
 
MG ZT CDTi

Join Date: Aug 2012
Location: Mansfield
Posts: 114
Thanks: 2
Thanked 25 Times in 16 Posts
Default

Is that on the opacity test? Mine only just struggles to get in at under 3.00
Richard1973 is offline   Reply With Quote
Old 21st May 2018, 23:21   #6
marinabrian
T4 Diagnostic Trader
 
marinabrian's Avatar
 
75 & ZT

Join Date: Jan 2011
Location: People's Republic of North Tyneside
Posts: 15,816
Thanks: 1,987
Thanked 6,775 Times in 3,727 Posts
Default

I should imagine this being a problem for badly maintained cars, or cars with a "no smoke, no poke" type remap.

After a bit of thought about this over the weekend, I ran the ZT up to Lion Garage and had their tester Martin put it on their new gas analyser, and there was no issues with it at all, bearing in mind this is a car in tip top mechanical condition.

I then substituted the ECM in a hot swap for an ECM programmed with a Tom Force "MAFless" tune, same car, same operating conditions exactly if you bear in mind it takes me less than 30 seconds to exchange one ECM for another.

The result was a spectacular fail

It will be interesting to see how a lot of the cars fare in the coming months.

Brian
__________________
All types of T4 Diagnostics now available

Official 160 BHP diesel tune upgrades NOT stolen versions from Barnsley VIN SARRJHLHC3D281232

MG ZT V6 160PS to 177PS Upgrades

Also official X-Power upgrades available


Keys Supplied and Programmed

ECM Testing Repair, and Replacement

ZCS Coding and Used IPK reflashing


PM me for details


Find your nearest T4 operator here
marinabrian is offline   Reply With Quote
The Following 14 Users Say Thank You to marinabrian For This Useful Post:
Old 21st May 2018, 23:23   #7
first-things-first
Posted a thing or two
 
first-things-first's Avatar
 
MG ZT

Join Date: Jul 2014
Location: Hornchurch
Posts: 1,090
Thanks: 144
Thanked 284 Times in 224 Posts
Default

+1 for Steve (Arctic)

My facelift has a plated limit of 1.00. Passed last year at 0.89 l/m. This year 0.82 l/m.

Does not give much room to pass.
first-things-first is offline   Reply With Quote
Old 21st May 2018, 23:42   #8
SCP440
Posted a thing or two
 
SCP440's Avatar
 
MG ZT-T 260

Join Date: Feb 2016
Location: Witney
Posts: 1,053
Thanks: 4
Thanked 283 Times in 188 Posts
Default

I popped into my MOT tester today to book an MOT for next week. He was telling he has tested 5 diesels today and 4 have failed the new test . 2 are booked in for some work but the other 2 will probably be scrapped as he reckoned the owners were thinking of getting petrol cars anyway and they were quite old.

I wonder how many diesel powered cars will be scrapped this year because of the new MOT?

He was also telling me he has failed a car because of no reversing lights and another because of an engine management light.
SCP440 is offline   Reply With Quote
Old 21st May 2018, 23:50   #9
marinabrian
T4 Diagnostic Trader
 
marinabrian's Avatar
 
75 & ZT

Join Date: Jan 2011
Location: People's Republic of North Tyneside
Posts: 15,816
Thanks: 1,987
Thanked 6,775 Times in 3,727 Posts
Default

Quote:
Originally Posted by SCP440 View Post
I popped into my MOT tester today to book an MOT for next week. He was telling he has tested 5 diesels today and 4 have failed the new test . 2 are booked in for some work but the other 2 will probably be scrapped as he reckoned the owners were thinking of getting petrol cars anyway and they were quite old.

I wonder how many diesel powered cars will be scrapped this year because of the new MOT?

He was also telling me he has failed a car because of no reversing lights and another because of an engine management light.
I can see this being the beginning of a cull of old bangers, not before time either.

No one with a well cared for car will have anything to fear, the MOT test even in it's new format is still a basic test of roadworthiness.

I had to chuckle earlier today when the car presented at the testing station I had the ZT emission tested at, failed on a bald tyre, inoperative screenwash and split wiper blades......it's first MOT.

Not everyone treats their car like a family pet, to some people they are a means of A to B and nothing more.

Brian
__________________
All types of T4 Diagnostics now available

Official 160 BHP diesel tune upgrades NOT stolen versions from Barnsley VIN SARRJHLHC3D281232

MG ZT V6 160PS to 177PS Upgrades

Also official X-Power upgrades available


Keys Supplied and Programmed

ECM Testing Repair, and Replacement

ZCS Coding and Used IPK reflashing


PM me for details


Find your nearest T4 operator here
marinabrian is offline   Reply With Quote
The Following 3 Users Say Thank You to marinabrian For This Useful Post:
Old 21st May 2018, 23:55   #10
brianw
Gets stuck in
 
brianw's Avatar
 
Rover 75 CDT Connoisseur SE Rover 75 1.8 Auto Connie

Join Date: Nov 2011
Location: Aldershot
Posts: 840
Thanks: 113
Thanked 105 Times in 67 Posts
Default

And there was me thinking the changes only affected later model Diesels with DPFs fitted.

Another thing I have just spotted.

Another significant change occurs if a car fails its MOT for something considered dangerous. In that case, the owner risks a £2,500 fine and six penalty points if they drive away from the testing station even if the carís MOT still has a few days to run. It means dangerous failures will in effect have to be rectified by the testing garage Ė with some mis-selling likely as a result Ė or be towed to another garage, with the extra expense that would entail.


Understandable but choose your MOT centre with care as this could give any wide boys in the game an easy way to drum up work.
brianw is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 03:05.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright © 2006-2018, The Rover 75 & MG ZT Owners Club Ltd