Thread: Transmission failsafe mode

The L322 auto is a GMH box,the Sport runs a ZF box.The ZF box is much better,but there are pitfalls.
Worth reading here.
http://www.aulro.com/afvb/d3-d4-rrs/...ssion-faq.html
ENJOY
Andrew

Originally Posted by Randy Lover

Hi All, Yes, TC was also done. Cooler and lines were replaced with new units. That said, I'll never put a trailer on the back of it again, I've lost all confidence in this gearbox...... Shame. On another note I drove a '08 TDV8 with 6speed box yesterday. That was lovely...... Anyone know if this box has similar problems? Lovely power which also make me wonder if the box can handle it? Cheers,Graham.

The ZF 6 speed was fitted to the L322 2006-2010, & RRS until 2013. The 6HP26 does have a very good reputation. Mine lasted to 240,000 and was very smooth to the end. It's downfall came from a LR failure to apply lubrication to the output shaft spline before attaching the transfer case. The spline on the shaft corroded and wore away until I lost drive. Up to then there was no sign of a problem. Comments on a UK forum site suggest this problem is showing up in a few of the earlier 6HP26 RRVs.

All fixed again. I was lucky enough to source a used box & TC. I had the TC removed to check the output spline for wear and lubrication. The spline was like new and it was greased up. A transmission service was done on the original tranny at 130,000 & 230,000km.

I have a 2010 and I find it can be a bit sluggish in changing like most older automatics and also when it disengages and re engages sometimes it can be a little rough.
Not quite a thud but kinda grabs quickly.
It's only done 75000km and has had a service and also transmission firmware upgrade.
My 2010 Discovery 4 that I bought new had the same feel to it.
Is there anything to stop the harshness of it grabbing gear?
It seems like a trait of this automatic.

Originally Posted by Blade74

I have a 2010 and I find it can be a bit sluggish in changing like most older automatics and also when it disengages and re engages sometimes it can be a little rough. Not quite a thud but kinda grabs quickly. It's only done 75000km and has had a service and also transmission firmware upgrade. My 2010 Discovery 4 that I bought new had the same feel to it. Is there anything to stop the harshness of it grabbing gear? It seems like a trait of this automatic.

Mine really gets up & goes. It's going great. There seems to be one change down that is noticeable but hardly a thud. Otherwise it's great.

I test drove a new Paj 18 mths ago, and that had a thud when changing down for a hill climb.

I'm doing some beach driving on the weekend. I'll see how it goes there.

I think it tends to be when you have braked and the transmission seems to let go of the gear. Then when you gently put your foot down it grabs again.
Almost seems like a thud but not quite.

For the benefit of members recently had this problem it turned out to be failure of the electrical motor attached to the transfer box . Initially the message was Transfer case in Neutral My reaction must be an error how with the car proceeding can the box be in neutral and I persisted however returning from Brisbane the transmission overheating came up then transmission in fail safe. Got home but car would not climb driveway . Problem fixed with second hand motor $700 from Adelaide triumph spares (normal new price $2300 ) and Ricks $ wheel drive Nerang Fitting $229

Originally Posted by birdie370

For the benefit of members recently had this problem it turned out to be failure of the electrical motor attached to the transfer box . Initially the message was Transfer case in Neutral My reaction must be an error how with the car proceeding can the box be in neutral and I persisted however returning from Brisbane the transmission overheating came up then transmission in fail safe. Got home but car would not climb driveway . Problem fixed with second hand motor $700 from Adelaide triumph spares (normal new price $2300 ) and Ricks $ wheel drive Nerang Fitting $229

Is that on a transfer box for a 6hp26 transmission ? If so I'm glad I kept my old trans & transfer box.