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Hey guys, first time posting, Long time following. Im having some issues with my RR SS and hoping this forum can give me some guidance.

Truck: 2011 Range Rover Sport Supercharged

The truck was stored from Early December to Early February. Was parked outside during Winter. Was occasionally turned on so the battery wouldn't fail, and it worked like a charm. Early February approaches and I'm ready to bring to the Body shop to fix some body work and mechanics after to fix a leaking airbag issue. The truck was not plated so my buddy who owns a Towing business said to move it to a parking spot to get rid of the ice and snow around the car. So i moved the car over to the next spot. It took some fighting to do cause the tires were flat. Yes, I know, not the smartest thing to do, but anyways i managed to pull it off but wasn't easy.

Next day approaches, my comes with tow truck. He starts the range and drives it up to the tow bed. Halfway through from driving the truck, it suddenly stops driving and says transmission fault. He puts it in neutral and manages to pull it with the chain and puts it on the bed. I thought this was maybe happening cause the car sat too long or battery was weak.Ive owned a number of German cars to know that when the battery is weak, it triggers multiple failures.

The truck gets delivered to the body shop. A few days later, the body man tries to drive the truck into his garage and wasn't able to. He calls me and tells me to bring a scanner and see whats wrong. I do a complete erase fault procedure hoping it would solve all these issues. As soon as its done, I restart the car and put it in drive. It shows "D" on the cluster but the car isn't moving. I press the gas, it goes up to 3-3500rpm and then it revs high to 6-7rpm and says transmission fault. I try going in reverse, the backup camera goes on but no success in reversing the car. The codes that came up are: P2700-07, P2703-07, P0850-29

Now the truck is brought to one of the mechanics i use. I have him the codes and he scanned the truck and got the same codes. He inspects the car underneath to see if the transmission cable is loose or broken, its fine. He then verifies the brakes ti see if their seized, they're fine as well . We then do a battery reset, disconnected the battery for a full 48 hours and reconnected. Hoping the memory would clear, but no success to the transmission issue, still won't advance or reverse.



Prior to the storage, the truck ran awesome with 0 mechanical issues. No signs of transmission slipping or jerking. I have a hard time believing its the transmission because it ran perfectly before i stopped using the car. HAs anyone been through this or does anyone know what this issue could be related to?
 

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2010-2012 Range Rover Sport
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Hello S14rover,

i too have had had similar problems with my RRS SC wrt the transmission problem.

my first problem I had was a active dynamics fault being displayed.
I was still able to use my car with this shown.
Recently I was driving my car in the snow and the message gearbox fail message was displayed and managed to ok this so I stopped at the side of the road and switched off the engine then restarted again and the fault disappeared but noticed I had no reverse gear and D was very slow.

I switched car off again and restarted and it seemed ok and got my car back home again.

Left it for a bit then restarted it only to find that the reverse was not working and hardly any drive now.

This is very odd as my car had a major service from land rover in December then was mot’d in January this year and nothing like this was picked up.

have not checked the transmission level so will check this first thing tomorrow then I will be calling my local land rover specialist.

Will keep you posted.

can you let me know of your outcome also please.

Regards Dave999r
 

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I am going to bring it to a mechanic in my area who specilaises in European Cars. He told me before towing it to him, to do a master reset. Procedures are to disconnect both terminals from battery, have both terminals connected to each other with a tie wrap for atleast an hour, 24 hours even better and also make sure they dont come in contact with the battery connections. Connect terminals back to battery and see if the problem goes away or remains. Try that on your car as im about to try that on mine today. Ill let you know by tomorow if anything has changed.
 
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