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Forum Technical
  - Forum member since...
Mon, Aug 4 2008
- Posts 303
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Emissions and cats, the facts. Also list of council MOT stations--NA (MK1) NB (MK2)
This FAQ will be updated later in the year when all the implications of the new MOT are fully understood
In collaboration with Roadster Robbie, who is a Mazda Technician and MOT'er, I have produced this chart, it shows the latest info up to year end 2007. I have spoken to guys on the UK MoT testers forum and they state that there is no requirement for a cat to be fitted to a car for the purposes of the MoT test, they wouldn't comment re the design and construction regs. However cars built after 1 August 1992 had to have a cat fitted from new.
Your MX-5/Roadster and the MOT test exhaust emission test
| First used on or after |
Test |
Emmissions |
| August 1st 1986 and July 31st 1992 |
Non Cat. Test. |
3.5% Carbon Monoxide (CO) concentration and 1200 parts per million (ppm) hydrocarbons (HC). |
| Any MX-5/Roadster with a fully functioning, well maintained engine management system with the engine at normal operating temperature will be able to meet these limits even with a decat pipe fitted. |
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| From 1st August 1992 |
Basic Emission Test (BET) |
Carbon Monoxide concentration of 0.2%, a maximum Hydrocarbon concentration of less than 200ppm and Lambda must be between 0.97 and 1.03 at a fast idle speed of between 2500 – 3000rpm (fast idle). Then at a natural idle speed of between 450 and 1500rpm (natural idle) the CO% must be 0.3% or less. |
| Any MX-5/Roadster with a fully functioning, well maintained engine management system with the engine and catalyst at normal operating temperature will be able to meet these limits.If for one reason or another, your vehicle fails the BET, then the tester will follow a number of set procedures. |
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| 1st August 1st 1992 and July 31st 1995 |
Exact VIN match in the Service Emissions Book |
In the case of MX-5’s the limits for vehicles of this age is 0.3% CO & 200ppm HC at fast idle and 0.5% CO at natural idle.
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| It is unlikely that an MX-5 of this age with its catalyst removed will meet this standard. |
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If an exact VIN match can’t be found, as is the case for Eunos Roadsters as these are not listed in the Service Emissions Book, then the tester re-tests the vehicle |
CO at 3.5% or less and HC at 1200ppm or less at natural idle, a non cat test.
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| A Roadster with a fully functioning, well maintained engine management system with the engine at normal operating temperature will be able to meet these limits even with a decat pipe fitted. |
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| August 1st 1995 & August 31st 2002 |
Service Emissions Book. MX-5’s are listed and must meet the emission limits |
less than 0.3% CO and under 200ppm HC at fast idle and 0.5% or less CO concentration at natural idle |
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Roadsters of this age, not being listed in the book are now subjected to a CAT test using default limits |
0.3% CO or less, HC 200ppm or less and a lambda reading of 0.97 to 1.03 at fast idle and a CO reading of 0.5% or less at natural idle |
| It is unlikely that an MX-5 or Roadster of this age with its catalyst removed will meet this standard |
All Mk1 Roadsters, 1.6 and 1.8, used a 370mm cat.
UK 1.8s have a longer cat; 440 or 470mm, depending on year.
All 115hp 1.6 MX5s and Roadsters have a 370mm cat.
Council test centres do not fix problems, therefore they have no motivation to fail vehicles as revenue generators
A full list of test centres
MOT Test Centres - including Contact Details
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County
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Address
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Contact Details
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Powis Terrace, Kittybrewster, Aberdeen
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01224 489324 / 01224 489413
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Inverurie
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01467 627538
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Mintlaw
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01771 623197
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Stonehaven
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01569 763274
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Dundee Contract Services, 353 Clepington Road, Dundee
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01382 434773
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County Council Vehicle Depot, London Rd Bedford
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08453 656150
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Fleet Transport,
Central Depot,
Kingsway,
Luton,
Beds,
LU4 8AU
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01582 546839
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Sandy Park Rd , Brislington,
Bristol
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01179
036319
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Broad
Lane, Engine Common, Yate, Bristol BS37 7PN
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01454
863920
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Synergy Park,
Chesney Wold, Bleak Hall, Milton Keynes, MK6 1LY
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01908 252845
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City
Services Transport Depot, Mill
Rd, Cambridge, CB1 2AZ
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01223
458265
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Peterborough City Council Depot,
Nursery Lane,
Fengate,
Peterborough,
PE1 5BG
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01733 425419
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Clair Road, Cardiff
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02920
343581
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Trostre Depot,
Trostre Road,
LLanelli,
SA14 9RA
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01554 784 138
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Glanyrafon Ind Est, Llanbadam Aberysthwyth, Cerdigion
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01970 636713
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Wilderspool
Causeway, Warrington
WA4 6PT
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01925
634296
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Direct
Services, Pyms Lane, Crewe & Nantwich
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01270 537777
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Lowerhouse Lane Depot, Runcorn
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tbc
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Lowerhouse Lane Depot,
Widnes,
Cheshire,
WA8 7AW
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tbc
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Ellesmere Port & Neston, Rossfield Road, Ellesmere Port, Cheshire, CH6 3AW
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0151 356 6548
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Newby
Road Industrial Estate,
Hazel Grove, Stockport, SK7 5DA
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0161 482 7235
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Cornwall Transport Organisation Engineering, Cornwall County Council Workshops, Bodmin
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01872 327827
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Cornwall Transport Organisation
Engineering, Cornwall
County Council
Workshops, Scorrier
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01872
327335
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Service Direct depot, St Johns Road, Meadowfield Industrial Estate, Durham, DH7 8XQ
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01913 862714
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Local Environmental Services Central Depot, Park Road, Gateshead, NE8 3HN
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01914 337433
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Rome Street, Bousteads
Grassing, Carlisle
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tbc
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Fleet Management & Vehicle Maintenance, Expressway Business Park, Abergele Road, Bodelwyddan, LL18 5SQ
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01745 839230
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County Transport, Ripley Rd, Ambergate
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01773 856667
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County Transport, Brimington Rd North, Chesterfield
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01246 450705
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County Transport, Halstead Garage, Buxton
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01298 813141
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Ivybridge MOT Centre, Blachford Road, Ivybridge PL21 0AE
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01752 698835
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Aspen
Way,
Paignton,
Devon,
TQ4 7QR
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01803 402 966
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Wanchard Lane, DT2 9RP
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01305 228132
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CEC Fleet Services, Gorgie, Russel Rd
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01313 372307
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Langston Road, Epping Forest,
IG10 3UE
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0208 532 0357
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Rainham Road North, Barking & Dagenham, RM10
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02082 272614
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Vehicle Servicing, Westside Centre, London Rd , Stanway, Colchester
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01206 282624
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Fleet Services, Denburn Yrd, KY1 2HD
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01592 551199 (switchboard)
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MOT Inspection Centre, 73 Hawthorn Street
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01412 87 3326/3328
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Swindon Rd Depot, Cheltenham
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01242 264184
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LeyDat Services, Unit G5 Innsworth Technology Park, Innsworth
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01452 731263
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Albert Rd North (City Council), Southampton
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02380
834362
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Eastleigh Borough Council,Hedge End Depot, Botley Road, Hedge End, SO30 2RA
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02380 688389
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The Forstal,
Beddow Way,
Kent,
ME20 7BT
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01622 605 800
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County Workshops, The Forstal, Forstal Road, Aylesford, Kent, ME20 7HB
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01622 605800
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Old Edinburgh Rd, Bellshill, ML4 3JF
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01698 506284
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Cowpen Lane Depot,
Cowpen Lane,
Billingham, Stockton-on-tees,
TS23 4DD
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01642
527167
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Operational
Services Depot, Moorhey Street, Oldham
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0161 770
4446
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Hindley Depot, Wigan
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01942
705122
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Hardshaw Brook Depot, Parr Street, St Helens, Merseyside
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01744 456757
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Stretton Way Depot,
Huyton Industrial Estate,
Knowsley,
L36 6JF
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0151 443 2816
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Dewhurst Row,
Holme Road,
Bamber Bridge,
PR5 6BB
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01772 620 933
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Layton Depot, Plymouth Road, Blackpool, FY3 7HW
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01253 476291
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Transport
Services & Vehicle Workshop,
Bradley Fold Depot,
Bradley Fold Trading Estate,
Bradley Fold Road,
Bolton,
BL2 6RS
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01612
536699 /
0161 253
6662
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84 Syston Street East, Cobden Industrial Estate, Leicester, LE1 2JW
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01162 519185
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Mill Hill Depot, Barnet, London
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0208 3595103
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Tower
Hamlets Vehicle Workshop, Silvocea Way, Blackwall, London,
UK, E14 0JJ
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02073
641069
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Rutlish Auto Care Centre, 144 Kingston Road, Merton, London, SW19 1LY
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02085 423269
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1 Dormay Street,
Frogmore Complex,
Wandsworth,
London,
SW18 1EY
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0208
8716761
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Fleet Management, Birchmere Depot, Birchmere Business Site, Eastern Way, Thamesmead, Greenwich, London, SE28 8BF
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02089 214561
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Bridge Rd Depot, Pears Rd, Hounslow, TW3 1SQ
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02085 835430
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80b High
Street, Bonnyrigg
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01316
603486
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Newington Road, Shieldfield, Newcastle upon Tyne
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01912 783867
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Northumberland
County Council, Morpeth
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01670
510153
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Eastcroft Depot, London Road, Nottingham, NG2 3AH
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0115 9152235
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Rolleston Drive Workshops, Arnold,
Nottingham
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01159
567420
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Transport
Services Division, Cowley Marsh Depot,
Marsh Road, Oxford,
OX4 2HH
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01865
252900
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Thorpe Lane Depot, Cherwell
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01295
221940
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Milford Haven, Pembrokeshire, SA73
2RR
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01437
764 551 ext 5938
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Unit 28,
Thornton,
Industrial Estate,
Pembrokshire,
SA73 2RR
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01437 775 440
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Ffrwdgrech DSO Depot, Ffrwdgrech
Industrial Estate, Brecon, Powys,
LD3 8DR
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01597
826000
(ask for Vehicle Maintenance workshops in Brecon)
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Limerick Rd, Dormanstown
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01642
444979
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McCalls Avenure, AYR
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01292
267802
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Beacon Business
Park,
Weston Road,
Stafford
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01785
854832 / 01785 854833
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Northwood, Stoke On
Trent
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01782
232297
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Lodge Lane, Great Blackenham,
Nr Ipswich
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01473
588600
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Rougham, Industrial Estate, Bury St Edmunds
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01359
270777
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Blythe Rd Industrial Estate, Halesworth
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01984
874427
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Factory Lane, Croydon
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02082 552758
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Woking Road, Guildford
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01483 445091
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Colas
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01273
815850
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Accord, Broadbridge Heath Depot, Worthing Rd,
Horsham
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01403
211246
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Eastbourne Buses, Birch Road, Eastbourne
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01323 418077
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S. Tyneside Council,
Middlefields,
Heddon Way,
Tyne Dock,
South Shields,
NE34 0NT
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0191 427 2024
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County Fleet Maintenance, Unit 6, Coleshill Depot, Coleshill Hth Road,
Coleshill, B46 3HL
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01675
464888
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St. Marys Road Depot,
St. Marys Road,
Nuneaton,
Warwickshire,
CV11 5AR
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024 7637 6031 ext. 6031
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Richmond Street, Clydebank
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01389
738741
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tbc
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01506
775000
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Montague Street, Bordesley,
Birmingham, B9 4BA
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0121 303 3311
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259 London Rd, Coventry, CV3 4AR
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02476 832147
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Fleet
Services Public Works Depot, Norfolk
Place, Bloxwich Road, Walsall, WS2 7BA
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01922
653716
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Arun Works Service, Arun District Council, Station Road, East Preston, West Sussex, BN16 3AA
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01903 737829
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Calne Test Station
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01249
812351
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VOSA Test Station, Wiltshire County Council, Devizes
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01380 725854
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The
MOT Centre,
Audley Road,
Chippenham
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tbc
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Six Ways
Depot, Worcester
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01905
753000
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Shearbridge Depot, Shearbridge Road, Bradford,
West Yorkshire,
BD7 1PU
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01274
431000
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Cargo Fleet Lane, Middlesborough
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01642 264586
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Amos Fleet, Battinson Rd, Halifax
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01422 355419
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Vine Street,
Huddersfield, Kirklees, West Yorkshire
HD1 6NT
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01484 223 127
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Staveley House,
Stockholm Road,
Hull, HU7 0XW
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tbc
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225a York Road, Leeds, LS9 7QQ
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01132 143161
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Claro Rd, Harrogate
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01423 556877
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Kirklees Council, George
St, Dewsbury, West Yorkshire
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tbc
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Newton Bar Depot, Wakefield
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01924
306431
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East Riding of Yorkshire Council Beverley Depot, Annie Reed Road Beverley, HU17 0LF
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Vehicle & Plant, North Bridge Doncaster, DN5 9AN
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01302 736851
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Disclaimer
Any work you do to your car is entirely your own responsibility. If in doubt, you should check technical advice with an independent , qualified person who has seen your car. The MX-5 Owners Club, its officers and forum contributors accept no reponsibility for any damage caused to your person or property as a result of you following or not following the advice offered on this forum.
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