I'm trying to remove the tow bar from my 2002 L322 but am stuck.

Here is a picture of it. The dampness is where I've squirted some WD40.

The key locks the pulling out the knob action, you should pull the knob out then twist, try turning the key the other way, pulling the knob out and turning it. It may be that the bar is stuck in the reciever. A good squirt with wd40 and a hammer may be the way forwards. There is nothing that can't be fixed with a hammer😜😜
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From the handbook:

Removing the tow bar mounting (for off roading)

Quote:

Remove the cover from the handwheel lock, insert the key and turn it clockwise.

To remove the tow bar, it is necessary to unlock it using the handwheel. Pull the handwheel out, then rotate it clockwise, until a "click" sounds - the red marker on the handwheel should now line up with the green bar. The tow bar is now unlocked.

Carefully lower the the tow bar and place the cover over the handwheel key.

Maybe a Birmingham spanner is needed to get the tow bar to "carefully lower" ?? You also didn't mention if you heard the "click" ? .
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Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

I bet you find its still all stuck together. Get a blow torch and heat the lot up on the outside of the reciter and the cooler detachable part should tap out much more easily. Then give it some time with a Brillo pad and then emery paper or 2000grit wet and dry to get the surfaces smooth again. Other option is to just take out the two bolts holding the receiver on.

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Thank you all very much indeed for your replies - very helpful. I checked YouTube and Google before posting but had drawn a blank

That's the best thing about this forum - such lovely helpful people.

I still couldn't get it off so kept it in place and painted it on the vehicle with some Hammerite:

If you're not going to use it just unbolt it from the bar

I did as KP said, heat and hammer... I like your suggestion too, looks very smart

Would the "Solihull Hammer" ie the car's ability to raise and lower help perhaps ?

 Where do you go after one of these . . . ?