Changing the transmission fluid on any car or truck is a vital part of preventative maintenance. Read your owners manual but it is generally recommended that you change the transmission fluid every 30,000 miles and the filter every 60,000 miles. By doing this cheap preventative maintenance you can help insure a long and healthy life for your transmission. Land Rovers use Dexron III, try and buy a name brand like (Valvoline High Mileage ATF) 6 quarts on hand for this, 8 quarts for when you change the filter too.

Step #1 You will need a 8mm Allen wrench for the fill/check plug and a 5mm Allen wrench for the drain plug.The drain plug is on the bottom of the transmission oil sump and the fill/check plug is on the front of the transmission sump.

Step #2 Remove the fill/check plug and then place your drain pan under the transmission sump and remove the drain plug. Once all of the fluid has drained out clean the area around the drain plug and make sure that you clean the drain plug threads and that the washer is still in place (it would also be a good time to replace the crush washers on the fill/drain plugs as well).

Step #3 Then by using a hand pump that you can buy at any auto store usually for around $10 US refill the transmission. Pump the new transmission fluid into the fill/check hole until it starts to come out of the hole, replace the plug.

Step #4 Start the engine and leave it running. Then shift though all of the transmission gears and hold each one for 2-3 seconds, starting in park and continue until you reach 1st, then go back to park.

Step #5 Reinstall​ the fill/check plug and make sure that the transmission is full, fluid should come out at a nice steady rate, if so you are full. At the same time be careful not to come into contact with the extremely hot catalytic converters. You can now turn off the engine.

Step #6 Pour your dirty transmission fluid into a container and take it to be recycled, any quick lube oil change place will take it as well as auto parts stores.

Budget one hour for this job.

Here is a video from Atlantic British as well if the above instructions were unclear.

Atlantic British Transmission Service Video

 

This would be fluid change, flush would involve evacuating the cooler lines and torque converter and flushing the entire contents. Great write up nonetheless

 

I have moved it to make it easier to find, updated it, simplified it, and re-named it. All credit to this write up goes to Spike555

 

Can this be done without raising the vehicle? I’ve managed to change most of my fluids but haven’t tried reaching the transmission.

 

It sure can of coarse in stock height it's a decent crawl under there. On a lifted D2 it's a breeze though

 

Thanks for this. Also mention the bolts have washers to them as well.

 

What are the washer specs?

 

I've done several transmission services on D2's (normally the first time it's ever been done) and I just re-use the original crush washers without any problems. If you wanted a new set I'd personally just run down to your local Auto Parts store (take your fill/drain plugs with you or order a new set from Rover's North #TYF101170 Fill Plug & #STC4098 Drain Plug.

 

Yeah I followed this to the T. Even letting it get warm to operating temp as he describes. Went through the gears as instructed, before opening it back up while running and STILL just keeps coming out and not like a drizzle either.
Rave says to do the process while gear box is cool. Someone else in a different thread also said to always do it cold and not hot. Now I got to go back in and try it one more time while it's cool but I'm not anticipating a good outcome. I do not know why it's just flowing out...

My original post https://landroverforums.com/forum/di...50/#post861544

 

If I understand correctly, the filter change can go every other fluid change? I've always changed my fluid and filter together. Thanks for the clarification.