Thread: Confusion about identifying 6sp and 8sp gearboxes.

Originally Posted by Discodicky

.....except in the case of a 2014 (maybe other years as well) XKR Jaguar!

A mate just bought one in Sydney and showed it to me. I saw the rotary dial and pronounced that it had the 8 speed auto. He said it was 6 speeds.

We almost got into a punch up (not really) until he lit up the ignition and showed me the gearchange display on the dash.

1,2,3,4,5,6 Speeds.

We learn something every day.

But we’re talking about Discovery’s, not Jags, or any other vehicle that comes with a ZF transmission. The 6HP28 six speed box was designed for manual selection or automatic, but was only supplied in manual form in a Discovery until they went to the 8HP box.

Originally Posted by DiscoJeffster

But we’re talking about Discovery’s, not Jags, or any other vehicle that comes with a ZF transmission. The 6HP28 six speed box was designed for manual selection or automatic, but was only supplied in manual form in a Discovery until they went to the 8HP box.

Thanks, am well aware of that; just thought people may be interested to know that the six speeder had a rotary dial in one application.

Originally Posted by Mtelizapete

Nor sure why, but Carsales only includes D4's up until the the updated model in the D4 category.

Probably because Landrover changed the naming at that point - it became just the Discovery.

And on Carsales you search for D4 plus Discovery/Series 4 to get the MY15 and MY16.5 cars.

Originally Posted by Discodicky

Thanks, am well aware of that; just thought people may be interested to know that the six speeder had a rotary dial in one application.

And my mate has a T bar shifter on an 8spd in his supercharged 5.0 F-Type Jag.

Originally Posted by Graeme

Being pedantic, the MY10 3.0 was a TDV6 whereas the MY10 2.7 was just a 2.7.

But the MY11 2.7 is badged as TDV6 and I assume that the 3.0 must have changed to SDV6.

IMGA0022.jpg

Originally Posted by BMKal

But the MY11 2.7 is badged as TDV6 and I assume that the 3.0 must have changed to SDV6.

IMGA0022.jpg

Eventually, the 3.0 high output was rebadged SDV6. Before that, it was 3.0 TDV6.

TDV6 was always the lower output version of the V6 Discovery - be that by way of a 2.7L engine, or the lower tune 3.0

Attached is something posted a number of years ago by Bytemark.

2015 & 2016 are the same specs as 2013 & 2014.

Discovery 4 2012 MY 12 is 6 speed

Discovery 4 2012 MY 13 is 8 speed

When advertising on Carsales if you have one version of the 2012 and you choose the other when advertising the vehicle it will cause the confusion that I think this thread relates to.

D4 Models.jpg

Makes me wonder how they go about the naming, as to me the other way around would make more sense as in, TDV6 Twin-turbo Diesel V6 and Single-turbo Diesel V6.