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[Migalot]

Just clean the selector mechanism, there's a guide.

Auto gearbox selector switch removal and cleaning
It isn't a complete guide - I grabbed the images from peoples posts when they were grappling with selector switch problems.

The first task is to check that the indicator lights on the gear selector console match the position of the lever. Clear the codes and see if any reappear.

If it is the switch at fault then you should be able to take it apart and clean/regrease it. the fun part will be getting to it 

Thanks Andy. 

Cleaned the donor switch last night and just jacked the car up, handbrake on , in neutral and...it's started raining.

I've come in to dry off a bit and will continue a bit later. The only thing I'm not looking forward to locating the end of the connector!

Will report back!

and adjusting it correctly when you refit ......

[Migalot]

About to abandon this job for today, I'm just so frustrated.

I have the car jacked up and axle stands and have wiggled my way under from the side. I undid the first 10mm bolt and thought I was making good progress, but then I came to the second and have spent an hour trying to get a socket on it. Apart from not being able to see it, the heat shields are making it nigh-on impossible to get my hand up to locate the socket on the bolt. Am I doing something wrong? Do I need to remove the gear shift cover inside??

Nightmare...  

[Doctor Gollum]

Ratchet spanner?

Selector switch removal is 100% under the car...

[Migalot]

Ratchet spanner?

Selector switch removal is 100% under the car...

Thanks for that confirmation. Clearly, I just need to persevere.

Sadly, though, I don't have a ratchet spanner. Will have to make do with a socket, but finding it very hard to locate the bolt!

Job completion now postponed until tomorrow. Hopefully, it will be drier and brighter. 

[Doctor Gollum]

A normal ring spanner will suffice, but obviously might take a while 

[Migalot]

A normal ring spanner will suffice, but obviously might take a while 

Thanks again for your help. Genuinely appreciate it. Apart from being very tired after a stressful week and trying to rush the job, I know realise that I was a bit disorientated under the car and was looking in the wrong place for that bolt. Figured that out later when I lined up the donor part. 

Tomorrow should mean a fresh start and a clear mind.

[Doctor Gollum]

Pays to take a step back every so often 

[Migalot]

OK, so I've finally managed to undo the bolts and slide the selector off, but how do you get to reach the connector? It seems to be surrounded by heat shield. Possible to reach down from the engine???

[Doctor Gollum]

There's a curved bracket iirc. The connector is at the end of this.

Possibly a locking tail to pull out then the connector unplugs like a regular one. It's a fairly chunky plug though, so might take some jiggling.

You can unplug it from above. Once you have removed the engine

[Migalot]

A 'locking tail'?

 

[Doctor Gollum]

A loop of plastic that stops the clip being pressed to release it

[Migalot]

A loop of plastic that stops the clip being pressed to release it

LIke a cable tie?

Either way, I can't even see the connector body, let alone grab hold of it with something.

Other must have had a similar problem, yet can seemingly swap a switch over in an hour or two!

[Doctor Gollum]

It's a nut, two bolts and a plug. The hour comes from access issues.

[Migalot]

It's a nut, two bolts and a plug. The hour comes from access issues.

Indeed. Not being a double-jointed octopus, I am thinking I might need to get a mobile mechanic out.

[Doctor Gollum]

It could be that the loom is snagged on the heat shield as it kicks up the fire wall.

Assuming that the selector switch is otherwise free, support it with one hand and push the plug up and towards the gearbox with the other.

Then with both hands pull it back along the shoulder of the gearbox...

Should free it some