Mares Regulator Service Information

Files provided for informational and educational purposes only. Regulator servicing should only be attempted by those with appropriate training, experience and equipment.

The information provided here is likely out of date or incomplete. Consult an authorized Mares service center or technician for current information.

Contents:

First Stage Service Instructions
First Stage Schematics and Parts Lists
Second Stage Service Instructions
Second Stage Schematics and Parts Lists
Tools, Accessories, Misc.
Technical Bulletins

Notes

Links are to Mares service manuals or parts lists (2021 XR and 2022 PL) and are followed by the page number of the linked pdf.
The service manuals are issued every year or two and are incremental, i.e. the information is only updated or replaced as new models become available and parts are updated. It is a good idea to check all the applicable links for your regulator as individual pages may be updated or missing from later manuals and parts catalogs.
The 2016 manual is in German, it does include photos of fully disassembled regulators with English labels as well as color photos of the service process.
While not indexed here, the manuals also contain service information on other Mares products including computers, BCDs, and spearguns.
We do not have every manual. The most recent manual we have is from 2022 and is not yet indexed.
If you would like to help keep this page up to date by reporting errors or contributing additional information, please e-mail lowwall1 "at" gmail "dot" com or contact lowwall or Zef on Scubaboard.com or post on this Scubaboard thread.

First Stage Service Instructions
multi.	C.W.D. Kit installation	1998-99	p. 10
	C.W.D. Kit installation	2004	2-4
	Procedure for adjusting IP in diaphragm 1st stages	2007	17
	Adjusting and Checking Intermediate Pressure	2012	25-26
	First Stage Troubleshooting	2012	27-28
2	R1/R2	1998-99	47-51
	R2S	2010	3-14
	2S	2017	67-83
10	MR10	1998-99	33-39
12	MR12 II	1998-99	41-45
	MR12/V12/12S "2011"INT	1998-99	27-30
	MR12/MRX12/V12/MR12 Long	2004	60-69
	12S (incl. CWD Dry kit)	2009	7-24
	12S	2016	6-42
	12S	2017	25-42
15	15x	2016	44-65
	15X	2017	49-65
16	MR16/V16	1998-99	20-25
22	Ruby DFC/MR22 DFC	1998-99	12-18
	Ruby DFC/MR22 DFC	2004	5
	22 Navy	2016	66-82
	22 Extreme	2016	84-106
	22X	2016	108-135
42	V42	2005-06	28-34
	MR42	2007	10-16
	C.W.D. Kit installation (MR42/V42)	2008	6-8
52	MR52	2012	10-24
	52X	2016	136-158

First Stage Schematics and Parts Lists

2 Parts List R2 DFC/R2 DFC Nitrox 1998-99 p. 51

Diagram R2 2000 DFC/R2 Nitrox 2000-01 4

Parts list R2 DFC/R2 Nitrox 2004 7

Both R2S 2010 13-14

Photo 2S 2017 72

Both 2S 2017 80-83

Both R2S 2022 PL 8

Both R2S - XR 2021 XR 5

10 Both MR10 1998-99 39

12 Parts List MR12 II 1998-99 45

Both MR12/MR12 Nitrox/V12 1998-99 31

Both MR12 DFC 2000/Nitrox/MRX12 2000-01 3

Diagram MR12 DFC 2000/Nitrox/MRX12 2002 10

Diagram MR12 Long 2002 11

Parts list MR12 DFC/MR12 Nitrox 2003 2

Parts list MR12 Long 2003 3

Both MR12 Long 2005-06 24

Both MR12 Long Nitrox 2005-06 26

Parts list MR12 Nitrox 2005-06 25

Both MR12S 2009 23-24

Both MR12S "2011" DIN 2012 8

Both MR12S "2011" INT 2012 7

Photo 12S 2017 31

Both 12S 2017 41-42

15 Photo 15x 2017 55

Both 15X 2017 64-65

Both 15X 2022 PL 7

16 Both V16 2000/V16 2000 Nitrox/VX16 2000-01 2

Both TI planet 2002 8-9

Diagram V16 2005-06 20

22/32 Both MR22 DFC/Ruby DFC 1998-99 18

Both Abyss 2002 6

Diagram Ruby 2002 4-5

Both Abyss 2005-06 14

Both MR22 Nitrox 2005-06 18-19

Both MR22 Nitrox 2009 2009 3

Both MR22 "2008" 2012 4-5

Both MR22 Navy 2012 6

Photo 22 Navy 2016 73

Photo 22 Extreme 2016 97

Photo 22X 2016 125

Both 22 Navy II 2022 PL 6

Diagram V32 2002 7

Both V32 2005-06 15

Both V32 Extreme 2005-06 16-17

Both MR32 Extreme 2008 11-12

Both MR32 T 2008 9-10

25 Both 25XR (with dry CWD) 2021 XR 3

Both 25XR (with oil CWD) 2021 XR 4

28 Both 28XR 2021 XR 2

42 Both V42 2005-06 35-36

Both MR42 T 2009 4-5

52 Both MR52 2012 23-24

Photo 52X 2016 147

62 Both 62X 2022 PL 3

Both 62X TBP 2022 PL 2

72 Both 72X 2022 PL 5

82 Both 82X 2022 PL 4

Second Stage Service Instructions

mult. Second Stage Trouble Shooting 2012 pp. 60-62

Final Checks and adjustments 2012 59

III III - II (2nd version of Model III) 1998-99 81-86

Abyss Ruby/Abyss/Voltrex 1998-99 53-58

Abyss 2008 26-31

Abyss 2016 194-213

Abyss Extreme 2016 175-193

Abyss Navy II 2016 160-174

Air Control Air Control Inflator 2009 56-66

Air Control Octopus 2009 41-54

Akros XTR/XL/Akros 1998-99 60-69

Axis Axis/Axis Octopus 2002 23-33

Beta Beta 1998-99 95-104

Carbon Carbon 2009 26-39

Fusion Fusion 2016 214-231

Instinct Instinct 2012 43-58

MV Octopus MV 2007 30-37

Octopus MV 2017 107-121

Navy Navy 1998-99 88-93

Nikos Nikos 1998-99 71-79

Prestige/Rover Prestige/Rover 2008 14-24

Prestige 2016 234-254

Rover 2017 87-103

Proton Proton/Proton XL 2002 35-43

Rebel Rebel 2K6 2007 19-28

Second Stage Schematics and Parts Lists

III Both III/Octopus 1998-99 p. 86

IV Parts list Navy/Octopus 1998-99 93

Abyss Both Ruby/Abyss/Voltrex/Voltrex Octo 1998-99 58

Both Ruby 2000/Ruby/Ruby Titanium/Orbiter 2000-01 6

Parts list Orbiter 2002 13

Parts list Ruby 2002 12

Both Abyss 2005 2005-06 37-38

Both Abyss Octopus/Abyss NX 2012 34

Both Abyss Navy/Extreme 2012 35

Photo Abyss 2016 203

Photo Abyss Navy 2016 165

Photo Abyss Extreme 2016 183

Both Navy II 2022 PL 19

Both [XR line] DR 2021 XR 7

Air Control Both Air Control Octo/Inflator 2009 65-66

Both Air-Control 2012 39-40

Both Air Control 2022 PL 21

Akros Both XTR/XL/Akros 1998-99 69

Parts list Akros/Octopus/Nitrox 2002 14

Both EPOS/Nitrox 2002 19-20

Both TI Planet 2002 17-18

Parts list XL/Octopus 2002 16

Parts list XTR/Nitrox 2002 15

Atlas Both Atlas 2022 PL 13

Atlas Adj Both Atlas Adj 2022 PL 9

Axis Both Axis/Octopus 2002 32-33

Both Axis Pro/Nitrox/Octopus 2004 8-9

Diagram Rebel/Octopus 2005-06 39-40

Both Rebel 2k6/Rebel NX/Octopus 2007 27-28

Beta Both Beta Escort/Octopus 1998-99 104

Carbon Both Carbon Octopus 2012 36-37

Dual Both Dual 2022 PL 15

Dual Adj Both Dual Adj 2022 PL 11

Both [XR line] HR 2021 XR 6

Epic Adj Both Epic Adj 2022 PL 10

Fusion Photo Fusion 2016 221

Both Fusion 2022 PL 16

Instinct Parts list Instinct 2012 57-58

Loop Both Loop 2022 PL 18

Both [XR line] VR 2021 XR 9

MV/SXS Both MV Octopus 2012 29

Photo MV Octopus 2017 111

Both MV Octopus 2017 120-121

Both SXS 2022 PL 17

Nikos Parts list Nikos Escort/Nitrox 1998-99 79

Diagram Nikos 2000/Octopus/Nitrox 2000-01 10

Parts list Nikos/Octopus/Nitrox 2002 21

Prestige/Rover Both Prestige Octopus/SHE Dives 2012 30

Both Rover Octopus 2012 31

Photo Prestige 2016 242

Photo Rover 2017 91

Both Rover 2017 102-103

Both Rover 2022 PL 20

Both [XR line] CR 2021 XR 8

Prestige DPD Both Prestige DPD Octopus 2012 32-33

Proton Diagram Proton XL 2004 11

Diagram Proton/Octopus 2004 10

Parts list Proton XL 2005-06 42

Parts list Proton/Octopus 2005-06 41

Proton Metal Diagram Proton Ice/Octopus 2003 6

Parts list Proton Ice/Octopus 2004 12

Diagram Proton Metal 2004 13

Both Proton Ice Extreme 2005-06 44-45

Parts list Proton Metal 2005-06 43

Ultra Both Ultra 2022 PL 14

Ultra Adj Both Ultra Adj 2022 PL 12

Tools, Accessories, Misc

Nitrox Statement (up to 40%) 1998-99 5-8

Nitrox Statement (Europe only, over 21%) 2005-06 2-7

O-Ring Reference Table 2007 8

Regulator tools 2007 4-7

Regulator tools 2017 each reg's service section

Regulator tools (in German) 2016 each reg's service section

Technical Bulletins - Although many of these bulletins are not relevant to regulator servicing, we have included all we have so you can see the gaps in our coverage.

TBM1 Defectiveness of retaining nut lever in 2nd stage regulators (change to nyloc nut) 2000-01 p. 7

TBM2 Inlet Fitting -2nd Stage hose Nikos/Nikos Escort/Octopus Nikos 2000-01 8-9

TBM3 Adjusting of 2nd Stage Lever Height (2nds Stage Turbo Flow Cover (Abyss 2nd stage) 2000-01 5

BTM4 Swivel H.U.B. Maintenance for Airlock 2002 49-50

BTM5 Assembling - Disassembling the V32 1st Stage Cap 2002 2-3

BTM6 Manual Maintenance Procedures - Proton Ice Version 2003 5

BTM7 Technical Update on Axis Second Stages 2003 4

BTM9 Identifying the New Air Trim 2003 System 2004 14

BTM10 Identify the new Ergo 2005 Inflator 2005-06 46

BTM11 DIN Connector 2k5 (for 1st stages: 32/22/16/H.U.B.) 2005-06 8-10

BTM13 A.T. 2003 Pneumatic Inflator Button O-ring 2005-06 51-52

BTM14 Air Trim Pneumatic System - O-ring inflator body 2005-06 53

BTM15 First Stage MR12 Nitrox Connector Maintenance Instruction 2005-06
2017 21-23
2-4

BTM16 First Stage MR22 Nitrox Connector Maintenance Instruction 2005-06 11-13

BTM17 New HP Poppet Seat for MR First Stage (Cod: 46186216) (for Tri-Material Poppet) 2009
2017 2
5

BTM19 Abyss 08 2nd Stage Demand Lever (Code: 46200777) 2008 13

BTM20 Octopus MV Cover 2010
2017 15
105

BTM21 MR22-42 300 BAR DIN Connector Body 2012 2-3

BTM22 Exhaust Gasket Aircontrol (#46201212) 2012 38

BTM23 Instinct 2nd stage Poppet 2012 42

BTM25_R1 Regulator Service Guideline and Service Intervals 2017 18-19

TB33 New Demand Lever 2nd stage Abyss 22, 52X, and DR 2nd stages 2018 1

ITM1 Replacing External Part of Air Trim Pneumatic Inflator 2004 40

ITM2 Technical Update for PHOS Tronic Light Switch 2004 41-42

ITM3 Replacement of Technomad Series Bag Wheels 2004 43

ITM4 Replacing X-Vision Mask Lenses 2004 44-45

ITM5 General Information for Phos 2k2/Phos 2k2 Test procedures/Phos 2k2 troubleshooting 2004 46-50

ITM6 Phos Tronic General Information/Phos Tronic test procedures/Phos Tronic troubleshooting 2004 51-57

ITM7 Replacing Buttons for M1/M1 RGBM Computer 2004 58-59

ITM8 Replacement of OR 2013 and Viton 75 Airlab Quick-Coupler Gasket 2004 60-61

ITM9 Procedure for replacing the battery (M1 Computer) 2004 62-67

ITM10 Activating NEMO after immersion in OFF mode 2004 68

ITM11 New SCS Valve Seat (#46186249) 2005-06 57

ITM12 V42 First Stage - HP Poppet Seat Replacement 2005-06 58-60

ITM13 New SCS Valve Seat (#46186249) 2005-06 61

ITM14 Identifing the new 2nd Stage Rebel 2K6 2007 38-39

ITM15 MRS Plus (integrated weight pocket) 2007 40

ITM16 Precedure for Replacing the battery (NEMO Computer) 2008 34-43

ITM17 NEMO Excel Gasket 2008 44

ITM18 NEMO Sport Battery Replacement Manual 2008 45-51

ITM19 Special Tools (#46201041 - #46201042) 2009
2017 67-69
6-8

ITM19 BIS Abyss 08 Second Stage Cover 2010 22-23

ITM20 Identification of Mobby's By Mares (drysuit) Valve Replacement Parts 2010 24

ITM21 Update Air-Control Inflation Spring 2010 25

ITM22 Update Air-Control Deflator Button 2010 26

ITM23 Insert Demand Lever #46200992 2012
2017 86
85

ITM24 Parbak Backup Ring 2012
2017 87-88
9-10

ITM25 MR12S First Stage Modification 2012
2017 89-91
11-13

ITM26 Abyss 2nd Stage Case - Abyss Extreme/Navy (Code: 46201190/46201191) 2012 92-93

ITM27 MV Exhaust Valve #46201219 2012
2017 94
106

ITM28 New Ergo Low Profile & Over Pressure Flat Valves 2012 95-99

ITM29 Diaphragm First Stage (#46291111 & #46185022) 2017 14

ITM30 12S First Stage "2011" Adjusting Nut and Retaining Nut 2017 15

ITM33 Rover Cover 2017 86

ITM37 Parbak Backup Ring (revision to ITM24) 2017 16

ITM38 Stufe Tri-Material Ventil Austausch - Nues ACT Ventil für 1. Stufen
(German version of ITM40) 2015 1-2

ITM40 ACT (Advanced Coating Technology) First Stage Poppet Info 2017 17

Updated 2024-03-10 by lowwall

First Stage Schematics and Parts Lists
2	Parts List	R2 DFC/R2 DFC Nitrox	1998-99	p. 51
	Diagram	R2 2000 DFC/R2 Nitrox	2000-01	4
	Parts list	R2 DFC/R2 Nitrox	2004	7
	Both	R2S	2010	13-14
	Photo	2S	2017	72
	Both	2S	2017	80-83
	Both	R2S	2022 PL	8
	Both	R2S - XR	2021 XR	5
10	Both	MR10	1998-99	39
12	Parts List	MR12 II	1998-99	45
	Both	MR12/MR12 Nitrox/V12	1998-99	31
	Both	MR12 DFC 2000/Nitrox/MRX12	2000-01	3
	Diagram	MR12 DFC 2000/Nitrox/MRX12	2002	10
	Diagram	MR12 Long	2002	11
	Parts list	MR12 DFC/MR12 Nitrox	2003	2
	Parts list	MR12 Long	2003	3
	Both	MR12 Long	2005-06	24
	Both	MR12 Long Nitrox	2005-06	26
	Parts list	MR12 Nitrox	2005-06	25
	Both	MR12S	2009	23-24
	Both	MR12S "2011" DIN	2012	8
	Both	MR12S "2011" INT	2012	7
	Photo	12S	2017	31
	Both	12S	2017	41-42
15	Photo	15x	2017	55
	Both	15X	2017	64-65
	Both	15X	2022 PL	7
16	Both	V16 2000/V16 2000 Nitrox/VX16	2000-01	2
	Both	TI planet	2002	8-9
	Diagram	V16	2005-06	20
22/32	Both	MR22 DFC/Ruby DFC	1998-99	18
	Both	Abyss	2002	6
	Diagram	Ruby	2002	4-5
	Both	Abyss	2005-06	14
	Both	MR22 Nitrox	2005-06	18-19
	Both	MR22 Nitrox 2009	2009	3
	Both	MR22 "2008"	2012	4-5
	Both	MR22 Navy	2012	6
	Photo	22 Navy	2016	73
	Photo	22 Extreme	2016	97
	Photo	22X	2016	125
	Both	22 Navy II	2022 PL	6
	Diagram	V32	2002	7
	Both	V32	2005-06	15
	Both	V32 Extreme	2005-06	16-17
	Both	MR32 Extreme	2008	11-12
	Both	MR32 T	2008	9-10
25	Both	25XR (with dry CWD)	2021 XR	3
	Both	25XR (with oil CWD)	2021 XR	4
28	Both	28XR	2021 XR	2
42	Both	V42	2005-06	35-36
	Both	MR42 T	2009	4-5
52	Both	MR52	2012	23-24
	Photo	52X	2016	147
62	Both	62X	2022 PL	3
	Both	62X TBP	2022 PL	2
72	Both	72X	2022 PL	5
82	Both	82X	2022 PL	4

Second Stage Service Instructions
mult.	Second Stage Trouble Shooting	2012	pp. 60-62
	Final Checks and adjustments	2012	59
III	III - II (2nd version of Model III)	1998-99	81-86
Abyss	Ruby/Abyss/Voltrex	1998-99	53-58
	Abyss	2008	26-31
	Abyss	2016	194-213
	Abyss Extreme	2016	175-193
	Abyss Navy II	2016	160-174
Air Control	Air Control Inflator	2009	56-66
	Air Control Octopus	2009	41-54
Akros	XTR/XL/Akros	1998-99	60-69
Axis	Axis/Axis Octopus	2002	23-33
Beta	Beta	1998-99	95-104
Carbon	Carbon	2009	26-39
Fusion	Fusion	2016	214-231
Instinct	Instinct	2012	43-58
MV	Octopus MV	2007	30-37
	Octopus MV	2017	107-121
Navy	Navy	1998-99	88-93
Nikos	Nikos	1998-99	71-79
Prestige/Rover	Prestige/Rover	2008	14-24
	Prestige	2016	234-254
	Rover	2017	87-103
Proton	Proton/Proton XL	2002	35-43
Rebel	Rebel 2K6	2007	19-28

Tools, Accessories, Misc
Nitrox Statement (up to 40%)	1998-99	5-8
Nitrox Statement (Europe only, over 21%)	2005-06	2-7
O-Ring Reference Table	2007	8
Regulator tools	2007	4-7
Regulator tools	2017	each reg's service section
Regulator tools (in German)	2016	each reg's service section

Technical Bulletins - Although many of these bulletins are not relevant to regulator servicing, we have included all we have so you can see the gaps in our coverage.
TBM1	Defectiveness of retaining nut lever in 2nd stage regulators (change to nyloc nut)	2000-01	p. 7
TBM2	Inlet Fitting -2nd Stage hose Nikos/Nikos Escort/Octopus Nikos	2000-01	8-9
TBM3	Adjusting of 2nd Stage Lever Height (2nds Stage Turbo Flow Cover (Abyss 2nd stage)	2000-01	5
BTM4	Swivel H.U.B. Maintenance for Airlock	2002	49-50
BTM5	Assembling - Disassembling the V32 1st Stage Cap	2002	2-3
BTM6	Manual Maintenance Procedures - Proton Ice Version	2003	5
BTM7	Technical Update on Axis Second Stages	2003	4
BTM9	Identifying the New Air Trim 2003 System	2004	14
BTM10	Identify the new Ergo 2005 Inflator	2005-06	46
BTM11	DIN Connector 2k5 (for 1st stages: 32/22/16/H.U.B.)	2005-06	8-10
BTM13	A.T. 2003 Pneumatic Inflator Button O-ring	2005-06	51-52
BTM14	Air Trim Pneumatic System - O-ring inflator body	2005-06	53
BTM15	First Stage MR12 Nitrox Connector Maintenance Instruction	2005-06 2017	21-23 2-4
BTM16	First Stage MR22 Nitrox Connector Maintenance Instruction	2005-06	11-13
BTM17	New HP Poppet Seat for MR First Stage (Cod: 46186216) (for Tri-Material Poppet)	2009 2017	2 5
BTM19	Abyss 08 2nd Stage Demand Lever (Code: 46200777)	2008	13
BTM20	Octopus MV Cover	2010 2017	15 105
BTM21	MR22-42 300 BAR DIN Connector Body	2012	2-3
BTM22	Exhaust Gasket Aircontrol (#46201212)	2012	38
BTM23	Instinct 2nd stage Poppet	2012	42
BTM25_R1	Regulator Service Guideline and Service Intervals	2017	18-19
TB33	New Demand Lever 2nd stage Abyss 22, 52X, and DR 2nd stages	2018	1
ITM1	Replacing External Part of Air Trim Pneumatic Inflator	2004	40
ITM2	Technical Update for PHOS Tronic Light Switch	2004	41-42
ITM3	Replacement of Technomad Series Bag Wheels	2004	43
ITM4	Replacing X-Vision Mask Lenses	2004	44-45
ITM5	General Information for Phos 2k2/Phos 2k2 Test procedures/Phos 2k2 troubleshooting	2004	46-50
ITM6	Phos Tronic General Information/Phos Tronic test procedures/Phos Tronic troubleshooting	2004	51-57
ITM7	Replacing Buttons for M1/M1 RGBM Computer	2004	58-59
ITM8	Replacement of OR 2013 and Viton 75 Airlab Quick-Coupler Gasket	2004	60-61
ITM9	Procedure for replacing the battery (M1 Computer)	2004	62-67
ITM10	Activating NEMO after immersion in OFF mode	2004	68
ITM11	New SCS Valve Seat (#46186249)	2005-06	57
ITM12	V42 First Stage - HP Poppet Seat Replacement	2005-06	58-60
ITM13	New SCS Valve Seat (#46186249)	2005-06	61
ITM14	Identifing the new 2nd Stage Rebel 2K6	2007	38-39
ITM15	MRS Plus (integrated weight pocket)	2007	40
ITM16	Precedure for Replacing the battery (NEMO Computer)	2008	34-43
ITM17	NEMO Excel Gasket	2008	44
ITM18	NEMO Sport Battery Replacement Manual	2008	45-51
ITM19	Special Tools (#46201041 - #46201042)	2009 2017	67-69 6-8
ITM19 BIS	Abyss 08 Second Stage Cover	2010	22-23
ITM20	Identification of Mobby's By Mares (drysuit) Valve Replacement Parts	2010	24
ITM21	Update Air-Control Inflation Spring	2010	25
ITM22	Update Air-Control Deflator Button	2010	26
ITM23	Insert Demand Lever #46200992	2012 2017	86 85
ITM24	Parbak Backup Ring	2012 2017	87-88 9-10
ITM25	MR12S First Stage Modification	2012 2017	89-91 11-13
ITM26	Abyss 2nd Stage Case - Abyss Extreme/Navy (Code: 46201190/46201191)	2012	92-93
ITM27	MV Exhaust Valve #46201219	2012 2017	94 106
ITM28	New Ergo Low Profile & Over Pressure Flat Valves	2012	95-99
ITM29	Diaphragm First Stage (#46291111 & #46185022)	2017	14
ITM30	12S First Stage "2011" Adjusting Nut and Retaining Nut	2017	15
ITM33	Rover Cover	2017	86
ITM37	Parbak Backup Ring (revision to ITM24)	2017	16
ITM38	Stufe Tri-Material Ventil Austausch - Nues ACT Ventil für 1. Stufen (German version of ITM40)	2015	1-2
ITM40	ACT (Advanced Coating Technology) First Stage Poppet Info	2017	17