 | Home > Off Topic > Life of a Haldex coupling. |
 
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971   
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Anyone know how long they last? I'm a bit suspicious of them as it's basically a differential designed with clutch packs instead of gears which seems all wrong to me. A clutch that's constantly slipping. But what do I know, I'm only an electronics engineer not a mechanical one
The context is I'm trying to persuade my dad that he'd be better off with an old Ford Ranger or Hilux as a tow vehicle plus a car, rather than a vaguely 4x4 thing like a Sante Fe, Freelander or the like. We got talking about 4x4 systems and I explained how selectable 4x4 and "AWD" worked, he commented that AWD sounded a bit crap, I agreed and then realised that loads of vehicles use it, so it can't be that crap can it? But then if you think about it, a constantly slipping clutch, even a wet clutch, can't be a good thing? Are there any medium sized 4x4s that don't use Haldex type couplings? CRV, Disco Sport, Evoque, Qashqai, Yeti, Outlander, Forester and Sorento all do as far as I can tell. |
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18th Jun 2015 5:28pm |
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| Projectblue Member Since: 22 Nov 2011 Location: Devon Posts: 1096 
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We use X5's on fleet with Haldex, they get hammered and do between 150-180k in their lifespan. The one thing that doesn't die is the Haldex. Ok, so they don't do a lot of towing, but they get driven..... significantly
 New project and it's green: www.projectoverland.info |
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19th Jun 2015 12:51pm |
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| discomog Member Since: 09 May 2015 Location: Notts/Lincs Border Posts: 2526 
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As mentioned before don't think of the Haldex Coupling like you would a dry plate clutch. If you want to know how the Haldex works then look at this training manual extract from VAG.
http://www.vaglinks.com/Docs/VW/Misc/VW_Ha...yGuide.pdf |
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19th Jun 2015 3:42pm |
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| T1G UP Member Since: 08 Dec 2009 Location: Bath Posts: 3101 
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haldex has many evolutions. my audis haldex and it very good.
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19th Jun 2015 6:51pm |
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| TJ101 Member Since: 30 May 2007 Location: Taunton Somerset Posts: 3748  
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Volvo use Haldex in the XC range,(60,70,90) , never heard of a problem, bar the ECU that is screwed to the rear axle, and is prone for water ingress California F1, 75th 110 "Kermit", 50th Ann V8, 90 V8 Hybrid, 55 Series 1
Main Brian James Trailer Dealer for South West UK |
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19th Jun 2015 7:20pm |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347 
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Lol! Seriously? How could those clever Swedes make such a obvious design flaw? Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197 Self confessed mileage hunter  |
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19th Jun 2015 9:44pm |
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971
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Yes, I know they're multi plate wet clutches Thanks guys, you've put my mind at rest a bit 
Still not sure I'd want one in a proper working vehicle though! End of luddite  |
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20th Jun 2015 8:58pm |
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558
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Its the metallic part that matters , metallic plate clutches wear much less then the kevlar or ferodo type plates
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20th Jun 2015 9:10pm |
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