General: - Engine retrofit to meet Euro 4 - any possibilities?

Sally Cavanagh · May 2nd, 2022, 17:38

Clean Air Zone (CAZ) is set to start at within a couple of streets of my home in Bristol later this year. Daily charge £9! I won't even be able to a weekly shop at the nearest large supermarket without going into the zone - unless I make a detour along roads pretty much adjacent to the boundary of the CAZ - creating several miles worth of extra emissions and particles!

Does anyone know about the possibilities for retrofitting the engine or adapting the exhaust system on 1990's Volvo 940 Estate, so at a minimum it will meet the Euro 4 emission standard?

I've looked at the Clean Vehicle Accreditation Scheme (CVAS) website - which seems to actively discourage owners of old private vehicles from doing this but, as I understand it, one third of a car's carbon 'cost' is in it's manufacture - so makes sense to me to keep a car going as long as possible. Besides, I love my old Volvo, it's virtually a classic...

Any information and advice gratefully received. Many thanks.

Familyman 90 · May 2nd, 2022, 19:16

There are no possiblities. Whatever internal combustion engine you fit to your car the recorded emissions rating will remain as it was when the car is first registed.

The only exception to this is if you were to convert it to pure electric power and were to then navigate the process to get it inspected and then registered in the "electric vehicle" taxation class. Of course, this is liable to cost as much or more than a used electric car.

DaveNP · May 2nd, 2022, 19:33

I'll second Familyman's sentiment, before you spend any money be 101% sure that you can get it accredited to the satisfaction of Bristol council. I believe for the London Low Emission Zone it is possible to get HGVs accredited but not cars, CVAS 'discouraging' you may be because the administrative side of it is impossible to negotiate. I can relate to your feelings over the ludicrous nature of either driving miles out of your way or scrapping a good car to get a newer one with the consequent emissions in either case.

baggy798 · May 4th, 2022, 17:14

LPG conversion?

May 2nd, 2022, 17:38	#1
Sally Cavanagh Junior Member Last Online: Apr 21st, 2024 20:14 Join Date: Jun 2015 Location: Bristol	Engine retrofit to meet Euro 4 - any possibilities? Clean Air Zone (CAZ) is set to start at within a couple of streets of my home in Bristol later this year. Daily charge £9! I won't even be able to a weekly shop at the nearest large supermarket without going into the zone - unless I make a detour along roads pretty much adjacent to the boundary of the CAZ - creating several miles worth of extra emissions and particles! Does anyone know about the possibilities for retrofitting the engine or adapting the exhaust system on 1990's Volvo 940 Estate, so at a minimum it will meet the Euro 4 emission standard? I've looked at the Clean Vehicle Accreditation Scheme (CVAS) website - which seems to actively discourage owners of old private vehicles from doing this but, as I understand it, one third of a car's carbon 'cost' is in it's manufacture - so makes sense to me to keep a car going as long as possible. Besides, I love my old Volvo, it's virtually a classic... Any information and advice gratefully received. Many thanks.

May 2nd, 2022, 19:16	#2
Familyman 90 The Brit Brick Last Online: Aug 13th, 2023 09:39 Join Date: Jul 2021 Location: Warwickshire	There are no possiblities. Whatever internal combustion engine you fit to your car the recorded emissions rating will remain as it was when the car is first registed. The only exception to this is if you were to convert it to pure electric power and were to then navigate the process to get it inspected and then registered in the "electric vehicle" taxation class. Of course, this is liable to cost as much or more than a used electric car. __________________ *2005 C70 2.4T Collection convertible. 40,000 mile sunny day toy.*

May 2nd, 2022, 19:33	#3
DaveNP Non VOC Member Last Online: Yesterday 23:02 Join Date: Jun 2011 Location: Milton Keynes	I'll second Familyman's sentiment, before you spend any money be 101% sure that you can get it accredited to the satisfaction of Bristol council. I believe for the London Low Emission Zone it is possible to get HGVs accredited but not cars, CVAS 'discouraging' you may be because the administrative side of it is impossible to negotiate. I can relate to your feelings over the ludicrous nature of either driving miles out of your way or scrapping a good car to get a newer one with the consequent emissions in either case. __________________ David V70 2.5 10v Torslanda Manual 98 Sreg

May 4th, 2022, 17:14	#4
baggy798 🤍💙💗 Last Online: Today 03:08 Join Date: Mar 2006 Location: Lichfield	LPG conversion? __________________ MY97 940 CD LPT Super Sports Edition 2 Turbo, Midnight Purple, 175,000 miles.

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