Whilst crawling through putney tonight in the typical London traffic I got a warning of "transmission overheated" and then gear selection became sporadic. Pulled over and turned off the car. Restarted and the message was gone but gears would only change in manual mode. Crawled along at 40 on the A3 trying to decide to continue or not when the gears started working properly again and it was fine all the way home.

The temp gauge on the dash never moved from its standard central position so I'm now confused as to how the transmission is cooled? "On first name terms with my local Dealer......now."

'61 Plate 5.0SC Autobiography - in Black ——— Gone
'53 plate 4.4V8 Vogue Bonatti Grey inside and out. ----- Gone

The gearbox has a separate cooler

But how is that plumbed in? is it a sealed system or something I should be maintaining? first time I have seen this and it was slightly concerning..... "On first name terms with my local Dealer......now."

'61 Plate 5.0SC Autobiography - in Black ——— Gone
'53 plate 4.4V8 Vogue Bonatti Grey inside and out. ----- Gone

Have a search through the forums. There is loads and loads of info on the subject out there ..

Go to google and put in l322 transmission overheat and you will find your answers. MY2010 TDV8 Vogue Ipanema Sand
2002 V8 Vogue Oslo Blue - Gone.

The cooler is at the bottom left of the Radiator, looking from above, its part if the cooling system, if the lower 8 sections of the main rad become blocked the Gearbox cooler is not fed correctly. Once the Gearbox oil gets to 140 Deg it stops changing up in order to use engine revs to keep it cool, so the issue could be the main Radiator.

I am still in the middle of trying to resolve my issue, so the above info is just what i have picked up along the way

try this for starters http://www.fullfatrr.com/forum/topic14434.html

Checked the rad coolant level this morning and it was quite low (I have a leak that requires a monthly top up and suspect the rad). Topped up the coolant and will see how the FFRR does this week. "On first name terms with my local Dealer......now."

'61 Plate 5.0SC Autobiography - in Black ——— Gone
'53 plate 4.4V8 Vogue Bonatti Grey inside and out. ----- Gone