Omega Owners Forum - AR35 gearbox.

Shackeng

Omega Knight

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Posts: 1640
North Wiltshire
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Drives: 2001 3.2 Elite Auto Saloon, 1999 Omega 2.5Td CDX Auto Estate. Trade Card. Halfords TC.

AR35 gearbox.
11. Dec 2009 at 17:27

As I am now on tenterhooks anticipating my AR25 box failing, could someone please advise which models have the AR35 box fitted, so that I can start looking for one?
Also, I would welcome several expert opinions as to whether I should change the oil in my current box at 93k. Never changed so far, and last topped up 10k ago.

Thanks in anticipation of some interesting replies. Cool

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Albs Omega King Offline The upgrades are ongoing. Posts: 15083 North Essex Gender: Drives: 2000 2.5CD with LPG/Honda cbr600 FX	Re: AR35 gearbox. Reply #1 - 11. Dec 2009 at 17:31 3.0 and 3.2,omegas.I believe 3.0 senators and carltons also had them but unlikely to find one of those to salvage one from these days.
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Pitchfork Omega Baron Offline Barndances & Morris Posts: 2493 Tadley (near Basingrad) Gender: Drives: 2006 Citroen C5 Diesel Estate	Re: AR35 gearbox. Reply #2 - 11. Dec 2009 at 17:35 My AR25 has done 152K, its still on original fluid & performs impeccably
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Entwood Omega King Offline Quietly Confident Posts: 13708 North Wiltshire Gender: Drives: 3.2 Elite (with LPG)	Re: AR35 gearbox. Reply #3 - 11. Dec 2009 at 17:37 Pitchfork wrote on 11. Dec 2009 at 17:35: My AR25 has done 152K, its still on original fluid & performs impeccably Fine ..but you haven't got a diesel with a performance chip in it .... like he has .. which is the cause of all the angst ...
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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: AR35 gearbox. Reply #4 - 11. Dec 2009 at 17:44 Albs wrote on 11. Dec 2009 at 17:31: 3.0 and 3.2,omegas.I believe 3.0 senators and carltons also had them but unlikely to find one of those to salvage one from these days. Senny ones won't do, 1) they are too old 2) they have a dip stick where Omega has extra ECU gubbins
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Shackeng

Omega Knight

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Posts: 1640
North Wiltshire
Gender: male

Drives: 2001 3.2 Elite Auto Saloon, 1999 Omega 2.5Td CDX Auto Estate. Trade Card. Halfords TC.

Re: AR35 gearbox.
Reply #5 - 11. Dec 2009 at 17:44

Entwood wrote on 11. Dec 2009 at 17:37:

Pitchfork wrote on 11. Dec 2009 at 17:35:

My AR25 has done 152K, its still on original fluid & performs impeccably

Fine ..but you haven't got a diesel with a performance chip in it .... like he has .. which is the cause of all the angst ...

Thanks ET, I forgot to mention the chip in my Post. Thumbs Up!

Just picked up some VX Oil today, £10 + on an Astra Owners club card! outside a guy walks over to admire the vehicle, and tells me I should join OOF! Vauxnut, hasn't posted for a while as his computer is down. Huh

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Shackeng

Omega Knight

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Posts: 1640
North Wiltshire
Gender: male

Drives: 2001 3.2 Elite Auto Saloon, 1999 Omega 2.5Td CDX Auto Estate. Trade Card. Halfords TC.

Re: AR35 gearbox.
Reply #6 - 11. Dec 2009 at 17:45

tunnie wrote on 11. Dec 2009 at 17:44:

Albs wrote on 11. Dec 2009 at 17:31:

3.0 and 3.2,omegas.I believe 3.0 senators and carltons also had them but unlikely to find one of those to salvage one from these days. Thumbs Up!

Senny ones won't do, 1) they are too old 2) they have a dip stick where Omega has extra ECU gubbins

Thanks very much Tunnie. Any thoughts on an oil change?

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Shackeng Omega Knight Offline Posts: 1640 North Wiltshire Gender: Drives: 2001 3.2 Elite Auto Saloon, 1999 Omega 2.5Td CDX Auto Estate. Trade Card. Halfords TC.	Re: AR35 gearbox. Reply #7 - 11. Dec 2009 at 17:47 Albs wrote on 11. Dec 2009 at 17:31: 3.0 and 3.2,omegas.I believe 3.0 senators and carltons also had them but unlikely to find one of those to salvage one from these days. I'm answering these all back to front, but thanks very much ALBS.
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Shackeng Omega Knight Offline Posts: 1640 North Wiltshire Gender: Drives: 2001 3.2 Elite Auto Saloon, 1999 Omega 2.5Td CDX Auto Estate. Trade Card. Halfords TC.	Re: AR35 gearbox. Reply #8 - 11. Dec 2009 at 18:01 For Jimbob, I'm not suggesting that your advice to leave it alone is not accepted, I was just hoping for more input on this issue, now that everyone's wound me up!
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tunnie

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London, W3
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Drives: 2.2 CD (LPG'd) & BMW R1200 GS

Re: AR35 gearbox.
Reply #9 - 11. Dec 2009 at 18:02

Shackeng wrote on 11. Dec 2009 at 17:45:

tunnie wrote on 11. Dec 2009 at 17:44:

Albs wrote on 11. Dec 2009 at 17:31:

3.0 and 3.2,omegas.I believe 3.0 senators and carltons also had them but unlikely to find one of those to salvage one from these days. Thumbs Up!

Senny ones won't do, 1) they are too old 2) they have a dip stick where Omega has extra ECU gubbins

Thanks very much Tunnie. Any thoughts on an oil change?

If its a chipped 2.5 TD and its got a working AR25, i'd leave it be until it breaks. Changing the fluid is not going to do anything really

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Do you break V6's as often as TheBoy? Then you need tunnie's towing services, recovery costs are just the humiliation of being towed by 2/3's of an engine

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Shackeng

Omega Knight

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Posts: 1640
North Wiltshire
Gender: male

Drives: 2001 3.2 Elite Auto Saloon, 1999 Omega 2.5Td CDX Auto Estate. Trade Card. Halfords TC.

Re: AR35 gearbox.
Reply #10 - 11. Dec 2009 at 18:03

tunnie wrote on 11. Dec 2009 at 18:02:

Shackeng wrote on 11. Dec 2009 at 17:45:

tunnie wrote on 11. Dec 2009 at 17:44:

Albs wrote on 11. Dec 2009 at 17:31:

3.0 and 3.2,omegas.I believe 3.0 senators and carltons also had them but unlikely to find one of those to salvage one from these days. Thumbs Up!

Senny ones won't do, 1) they are too old 2) they have a dip stick where Omega has extra ECU gubbins

Thanks very much Tunnie. Any thoughts on an oil change?

If its a chipped 2.5 TD and its got a working AR25, i'd leave it be until it breaks. Changing the fluid is not going to do anything really

Thanks Tunnie, thats 2 for leaving it alone. Thumbs Up!

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Entwood Omega King Offline Quietly Confident Posts: 13708 North Wiltshire Gender: Drives: 3.2 Elite (with LPG)	Re: AR35 gearbox. Reply #11 - 11. Dec 2009 at 18:10 Make that 3 .... But I think your idea of sourcing a "spare" AR35 for the day the present one says "enough" is a good move !!!
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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: AR35 gearbox. Reply #12 - 11. Dec 2009 at 18:11 Entwood wrote on 11. Dec 2009 at 18:10: Make that 3 .... But I think your idea of sourcing a "spare" AR35 for the day the present one says "enough" is a good move !!! Agreed, buy a known gooden, and keep it in the garage, when it does go pop you have one ready to go
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Shackeng

Omega Knight

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Posts: 1640
North Wiltshire
Gender: male

Drives: 2001 3.2 Elite Auto Saloon, 1999 Omega 2.5Td CDX Auto Estate. Trade Card. Halfords TC.

Re: AR35 gearbox.
Reply #13 - 11. Dec 2009 at 18:20

Entwood wrote on 11. Dec 2009 at 18:10:

Make that 3 .... Thumbs Up!

But I think your idea of sourcing a "spare" AR35 for the day the present one says "enough" is a good move !!!

Good plan, and I'm keeping an eye out. If I find one I would get it overhauled before fitting, so I will probably be asking for recommendations for good auto box overhaul shops later. Thumbs Up!

PS I've only got a double garage, and its full of everything but cars already! : Roll Eyes

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« Last Edit: 11. Dec 2009 at 18:21 by Shackeng »

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