Questa sarebbe la causa:
Extensive investigations have identified a possible concern with the MIG weld that attaches the left hand flange to the axle case for the vehicles included in this safety recall. The weld joint may not, in every case, be the required specification which may, over time and with use, lead to weld fracture. Localised weld fracture may be evident through signs of oil leak. If undetected, the fracture can propagate leading to loss of mechanical strength and ultimately detachment of the axle flange.In pratica, la saldatura MIG in alcuni casi non sarebbe all'altezza delle specifiche richieste; è possibile che si crei una crepa, la quale a sua volta origina una perdita di olio. Se non si interviene, la crepa può andare avanti, pregiudicare la solidità e in ultimo arrivare al distacco della flangia...
I veicoli coinvolti sono solo 110" e 130", niente 90".
Questa è la ragione dei due richiami distinti:
Owners will be notified and instructed to take their vehicles to a Land Rover dealer who, in the case of certain 110 and 130 vehicles with Heavy Duty Suspension, will have a correct to specification replacement front axle case installed (recall action P047). All other affected vehicles (P048) will have an additional bracket mounted to the end of the axle case tube around the flange so that in the event of the weld cracking sufficiently to allow the flange to detach, the wheel hub assembly and suspension does not detach. In this condition the vehicle will exhibit an oil leak from the failed weld area. It is also possible that steering feel will be degraded and may be less precise, the steering wheel may be mis-aligned and in this condition vehicle stability and control is fully maintained. Why are some vehicles having a replacement front axle case whilst other vehicles are having an additional bracket mounted to the end of the axle case? Through extensive engineering and data analysis it was identified that Land Rover Defender 110 and 130 vehicles specified with heavy duty suspension and operated in markets designated as significant arduous use are more likely exposed to operating conditions where weld failure is more likely to occur – significant and repetitive shock loading at speed for example on rutted roads. In an abundance of caution, Jaguar Land Rover has decided to replace the front axle case on particular vehicles in these markets. To ensure clear instructions for the repair requirements is provided; two recall action codes have been allocated to align those vehicles requiring axle replacement separately. La sostituzione dell'assale è prevista solo per 130" e 110" con sospensioni HD; per tutti gli altri, si monta la staffa aggiuntiva e basta là: infatti, con la staffa aggiuntiva, se anche l'assale si rompe la sospensione regge e si mantiene il controllo del veicolo...
Molto consolante...
