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Discussion Starter #1
Hi Please would you be good enough to advise me? I have a 2002 BMW powered 4.4, 200000Ks and I live in Christchurch NZ. A few weeks ago my gearbox chucked itself into failsafe mode with a clunk, resets itself on restart but if its warm soon re occurs. in the weeks leading up to this I noted a judder at low speed on pick up about 50- 60 kph. I have the vehicle at the only option here which is the main agent. They have quoted me $14k = about 7grand in pounds. That is worst case scenario for a RR factory replacement. What do you think? any other options? Anyone in my neck of the woods with a recon one? Could I fix it myself with a repair Kit I am reasonably handy but have never done an auto Gbox. Is it worth scouting around for a second hand gearbox from who? Or is my only choice to empty my wallet or scrap the thing? It has certainly been a money pit since I bought it its had Auto box cooler front air struts, ecu, fuel pump all in less than a year.
 

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2006-2009 Range Rover MkIII / L322
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I'm not in your neck of the woods, but can offer some guidance. I've had some issues with my transmission on my 2006 L322 (Jag powerplant) and got some quotes for a transmission rebuild. You have the 5hp24 transmission vs the 6hp26, but yours should be easier to rebuild.

I've been quoted U.S. $3,500-4,000 for a complete rebuild at an independent shop, including solenoids. At the current exchange rate that's about NZ $5,800, less than half what you were quoted. I've seen other forum members quote prices even cheaper than thst. I'd recommend taking it to an independent transmission shop and seeing if they can rebuild it and get a quote. The dealer will always be more expensive.

Personally I would not rebuild my own gearbox, especially on a more complicated transmission like the ZF. The engine I'm comfortable working on, but have never had any experience working on gearboxes, aside from changing fluid and filter.

-Greg

Sent from my SM-N920T using Tapatalk
 

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LEGACY VENDOR
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Sounds like you have the ‘normal’ problem with your 5HP24 i.e. the axial needle roller bearing between the B-clutch hub & the C-clutch drum has failed, allowing the B-clutch drum to move axially along the input/A-clutch shaft, uncovering the O-ring seal and causing it to split







By far the most difficult part of the repair is getting the transmission out of the vehicle and back in again. Fixing the transmission is the easy bit. If all the needle rollers are retrieved you don’t even need to strip the whole transmission, just remove the front end to replace the bearing and O-ring. The bearing costs £6 and the seal 50p.

Might be a good opportunity to replace your torque converter while you’re at it, and fit a new filter with fresh fluid.

Phil
 

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Discussion Starter #4
Thanks chaps! I took the unit to our localZF specialists and it seems that I didn't catch it early enough. Bits of metal from a bearing or housing throughout the gearbox have caused wear / damage throughout. NZ$7Gs worth. Just goes to show that catching things early might save you a considerable amount.
 
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