There are reports of abnormally high failure rates of the MB 722.6 autoboxes between 60-100k. These are no longer given interim oil changes(sealed for life)
HJ always recommends such changes.The boxes are also fitted to Jaguar & RR.
Has HJ or anyone confirmation of this rumour ?
regards
Simon
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I thought that Rolls-Royce and Bentley have always used a GM autobox from the US capable of handling 7-8 litres worth of torque.
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No, haven't heard of this. Jag claims that using sealed autoboxes prevents contamination by dirt on the diptick, etc. And, of course, no toque converter box can ever be 100% drained without completely dismantling it, so ATF changes are usually only of 70%, or maybe 90% using a dialysis type machine. I guess that by RR Simon means Range Rover.
HJ
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Thanks for that HJ- reassuring! please disregard my E/M on subject, Tiscali playing up again. Range Rover I meant.
regards
Simon
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Thanks for that HJ- reassuring! please disregard my E/M on subject, Tiscali playing up again. Range Rover I meant.
regards
Simon
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When I was in company cardom my N reg C class auto failed at 70k. SWMBO's P reg 5 speed auto failed at 18k and again at 30k - one of the reasons we don't drive Mercs any more.
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Sorry guys, I've always known RR as Rolls-Royce, it's a history thing.
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