Thread: Restricted performance Gear box fault

Originally Posted by Warrzone

Trevor

thank you very much for the offer, but the car has thrown the code up again. so we will leave it be until it goes for a sleep over at Triump rover spares.

I will keep you posted as to what it is. Hopefully nothing too $$$$.

thanks again the land rover community.

FWIW, I had a similar issue just after Christmas while towing in hot weather - through the Snowy Mountains. My issue was caused by the main battery. A few days on solar charge while camping and some long drives and it hasn't appeared since. (It is now 5 years old and I bet it will die now I've written this!)

Cheers,
Rob

I have a Trans Fault thrown up on the dash of my 2008 TDV8 RRS. Some times it won't even start, the lights come on when I turn the key but nothing at all when it gets to the start bit. I've had a switch fitted under the bonnet which is direct to the starter motor. Car starts, runs, purrs like a kitten, just a bit of a pain to start sometimes.

Originally Posted by Warrzone

Some days i like my D2 better, yesterday was one of those days.

2010 D4 2.7 175,000km
has had gear box serivced approx 70k ago due again, but no issues

What happened
Yesterday while driving approx an hour on a 2 lane freeway cruising along at 100km
cruise control set, in D in 6th gear
40c day.
gear box and car working 100% fine, smooth shifts ect.
not towing, or any weight in the car.

I got the message, Restricted performance, gear box fault. twice.
stopped reset, drive again.

back to 100km for about 5 mins cruise on fault again.
reset drove with no cruise on left it in 5th no fault (i was nearly home) about 15 mins to go no more faults while driving around town.

I haven't scanned the car yet, I'm planning on getting a scan from a mechanic during the week.

my questions if an answer is possible with the above info and no scan.

What causes this type of fault?
in restricted mode it felt like the car had no drive, foot flat to the floor, and the car kept slowing down. i would be lucky to drive at 40km is that normal?
scale of 1-10 10 being a new 8k gearbox job how worried should i be?
would it be okay to keep driving?
is it more likely to be a sensor ect playing up?
is there anything i could check my self to narrow down the cause?

thank you everyone for you time.
Ben

I had the similar symtoms and it was caused by heat exchanger capillaries collapsing restricting oil flow. (See my previous posts)

It occured after approx 120 km and on hot (+35ºC) days even when not towing camper or van.

If used for towing especially over time, and in hot climate for longer distances, the temperature differentials together with pressure differentials, is the cause.
Did not replace heat exchanger, but installed an additional cooler.

Originally Posted by Wojer

Did not replace heat exchanger, but installed an additional cooler.

I'm interested in this. What cooler did you add and where did you put it? Cheers
Ryan

Ah the dreaded restricted performance fault. I know it well, from my time with a 1999 Jaguar; it was the reason I got rid of it. It was always caused by minor problems, so I think you can rule out major gearbox problems, because the car performed normally after a restart. It will be some elusive electrical gremlin. If your vehicle is running a ZF 6 speed, there is a large electrical connection plug through the casing into the tranny. These tend to leak oil after a service, (sod's law). They are available for about $45 on ebay. Failing that, check all other electrical connections to do with the gearbox.

Originally Posted by justinc

Oops, brain fade.

Yep yep... it happens when you are a indy Land Rover repairer

All pointless speculation until codes are read.

Originally Posted by Warrzone

Some days i like my D2 better, yesterday was one of those days.

2010 D4 2.7 175,000km
has had gear box serivced approx 70k ago due again, but no issues

What happened
Yesterday while driving approx an hour on a 2 lane freeway cruising along at 100km
cruise control set, in D in 6th gear
40c day.
gear box and car working 100% fine, smooth shifts ect.
not towing, or any weight in the car.

I got the message, Restricted performance, gear box fault. twice.
stopped reset, drive again.

back to 100km for about 5 mins cruise on fault again.
reset drove with no cruise on left it in 5th no fault (i was nearly home) about 15 mins to go no more faults while driving around town.

I haven't scanned the car yet, I'm planning on getting a scan from a mechanic during the week.

my questions if an answer is possible with the above info and no scan.

What causes this type of fault?
in restricted mode it felt like the car had no drive, foot flat to the floor, and the car kept slowing down. i would be lucky to drive at 40km is that normal?
scale of 1-10 10 being a new 8k gearbox job how worried should i be?
would it be okay to keep driving?
is it more likely to be a sensor ect playing up?
is there anything i could check my self to narrow down the cause?

thank you everyone for you time.
Ben

Q. Were you still on Cruise Control when this occurred? If so you may need to go down this path.