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Hi The thread here seems to have finished in 2018, but our 2012 antara transfer box went in may 2019. Wondered is this issue still going on? speaking to dealer/ customer service without any help at all now considering watch dog?
 

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In 2018 this forum was sold on to new owners who made significant changes to the layout, etc. without any warning. Prior to this the forum was pretty **** good in terms of helping each other out with all aspects concerning the Antara range. Consequently a group of regular contributors to this forum left and formed/joined another one. A shame, but there it is.
 

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I'm not sure where he's based but a friend did my he has a garage in south Liverpool by the airport he did mine in a couple of hours the car drives so much better and fuel economy is up he charges £300 message me if you want details I'd be happy to help
 

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The transfer box on these things are like chocolate. I've just had mine done at a cost of £1600.

I've heard of cases of them going sub 20k miles!

The gearboxes are like chocolate too. Along with injector no.3.
 

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Hi Richy.

I think it would, but then I wanted the 4x4 for a reason namely towing the van off wet / snowy / muddy fields.

Where I live we often suffer heavy snow and the 4x4 makes life a little easier.

I'll see if I can find the oem number somewhere to check if the mod would work.
 

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Likewise, I cant see the point of buying a 4x4 to convert it to 2 wheel drive, Apparently the two wheel drive cars are quite good, but for towing I prefer to air on the safe side just in case i end up in a muddy field or snow in winter. I would also be interested in knowing what this mod is, I can only assume its a replacement bearing. Richy
 

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Got the same Problem, 2103 Antara Diamond, bought in April, Transfer box just gone, got hole blown in it. Trying to find replacement but cost is ridiculous. Might have to end up scrapping the motor.
 

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Transfer box failures are not restricted to Antaras. A wide range of manufacturers (e.g. BMW, Mazda, Land Rover, Porsche, etc. etc.) suffer the bad publicity associated with these events. Reading the posts from others over the years I have learned that:
1. checking the fluid level is not part of a standard service with a VX dealer (I always request it with mine).
2. only the recommended GM fluid should be used - there doesn't appear to be a published alternative..
3. some workshops believe that the box is a sealed unit and cannot be treated (it isn't) and a member previously posted a technical illustration of an Antara transfer box showing the drain and level plugs. He also made a case for what is described as 'pump rub'. https://www.dieseltechmag.com/2013/08/what-is-pump-rub
4. some manufacturers believe that odd tyres on the same axle, even just with different levels of wear, can contribute to transfer box failure.
5. although termed 'AWD' these vehicles are not designed for off-roading.
6. if the warning symptoms are ignored the failure will be catastrophic (repairs are bad enough in terms of cost).
 

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So.... 5 weeks on we have a result. Supplying dealer washed their hands of it, then quickly backtracked under pressure from Vauxhall, finally agreeing to pay 10% of costs. They wouldn't recover the vehicle though, so VX kindly delivered it to them and returned it at their cost, in addition to covering the other 90% of the £10100 cost involved. We now have the car returned with new transfer box, propshaft, and rear differential! Technicians think the u-joint on the prop went, forcing it out of alignment and resulting in damage to the adjoining parts. It was a long uphill struggle but so pleased we stuck at it with encouragement from all who commented here, so thank you all
.
 

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Can anyone tell me if they have had a problem with the Transfer box, the bearings have gone in mine and put an hole in the casing?
I’ve had the exact same issue when I bought mine, it turns out that if the haldex which is fitted to the rear diff runs out of oil as it’s separate from the diff oil, then the haldex starts ceasing causing the prop shaft to tighten up when turning full left or right which then strains the bearings in the transfer box causing it to collapse hence smashing a hole in the transfer box
 

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I’ve had the exact same issue when I bought mine, it turns out that if the haldex which is fitted to the rear diff runs out of oil as it’s separate from the diff oil, then the haldex starts ceasing causing the prop shaft to tighten up when turning full left or right which then strains the bearings in the transfer box causing it to collapse hence smashing a hole in the transfer box
What makes you think the Antara has a Haldex diff?
 
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