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Well nothing more to report yet sadly. Linked up a second, new and freshly charged battery today, after disconnecting old battery and leaving for 5 minutes. Same crazy electrical problems, though the locks weren't constantly cycling this time (maybe they've blown the fuse, didn't check). I do wonder if maybe the ignition barrel switch could be causing an amount of fun as the dash not turning off at shutdown is a new thing, and doesn't happen every time but does most times I switch off. I'll keep trying when weather etc allows...

Thanks for the thoughts on it. I think you're right, getting any professional to look at it will inevitably result in a money drain unless there's a lot of luck involved. I'm thinking of a battery trial to start with. I have a good option to try, albeit it will only be a temporary effort on the driveway as it won't fit to use properly. I'll have a crack with it at the weekend if the weather let's me. Fingers crossed.

My 06 2.8crd appears to have gone mad. It's developed a habit of opening the sliding doors a lot, and the boot too sometimes, over and over. If I don't remove the IOD fuse and door relay they just keep going. Now the door locks continually cycle when the car's started and not running. Also, the dash takes a minute or so to turn off when the key is removed from the ignition. Is this all bad battery related, from it being discharged perhaps (charged now), or does something else tend to cause this? It's feeling like it might be getting dangerous and time to scrap it unfortunately, and I really don't want to! Thanks for any help.

I'm going to prod this again, cos I can't believe no one knows..! Any thoughts?

Is really no one able to advise? I thought it might be obvious to someone who knows their stuff (clearly not me!)...

Ref the pic below, on my 2007 2.8 CRD there's a sensor at the point that the air intake pipe between the MAF sensor and the turbo inlet branches off to the oil seperator. I've been working towards changing the thermostat, and that sensor is leaking oil on top of the engine (a little). On removing the connector to the sensor the connector's full of oil too between its 2 contacts. Can anyone advise what the sensor is please, and if the oil is a problem? Thanks!

I did also have a 1.5mm hole drilled in my temporary thermostat - and I know people have it working for them but it didn't for me. I did consider drilling lots of holes to see if it still overheated (or underheated) like that but thought I'd give the proper stat a go.

Hello there. Yes, I did indeed have the wiper module off. The thermostat was still just about impossible to get at with the intake pipe in the way. What I didn't proceed to do, as I had at that point spotted I had the wrong replacement thermostat, was to have a look from underneath to see if the intake pipe could be accessed for removal from the turbo: anyone know? Luckily I hadn't drained coolant, so not too much time spent! Thanks.

I know this is 2 years old, but for any others who get sucked in reading it and deciding to have a go at replacement of the thermostat, if you have a late 06 onwards CRD you probably have a thermostat with a wired temp sensor to it, per the original poster with a mechanic who tried to fit the earlier mid-06-and-previous thermostat, which doesn't feature the temp sensor there and so there is no trapping for it. I suspect that the same change coincides with the air inlet manifold changing too. That means that on the late 06 onwards, the inlet hosing does not remove easily per the 'Auto Shaman' YouTube vid. For me (yes, late 06 CRD) that means access to change the thermostat is almost non existent, and since I have the wrong stat anyway without the tapping, that means I've had to give up for now! I also have tried the inline stat trick and found it stopped working after a couple of hundred miles, probably as it's too remote from hot coolant flow from the engine until almost too late.

Cracked fuel filter housing I bet. Was on mine. Search for that and you'll find what I mean I reckon.

Have you tried the earth lead connection to the starter motor? That was the trouble with mine with similar symptoms a year or so back IIRC. A quick wiggle and it magically sprang back to life. Replaced the spade connector with a new one after and it's not done it again. Good luck!

Be interested in an answer too (sorry, not from me) as I had the multi DVD fail too recently. Managed to fix it mechanically for about half an hour after taking it all apart and supergluing a bit, but it didn't last and all looked a bit feeble anyway. My take on it was to use the video-in on the front of that instead, which works fine, with a USB stick media player (about £25). Note that the IR receiver for turning the screen on is on the multi DVD unit itself strangely - does the single disc unit have the same?

Mine were push in - I only took one bit apart, which was a clipped together fitting. The rest didn't need to so I couldn't say. Hope it fixes ok.

I had the same a couple of months ago. Just need to remove the plastic panel that the nozzles poke through with the bonnet up. Bike pump did the trick for me fairly easily.

Hello there. Sadly there's not a lot in the way of options. Probably about £50 from that well known auction site, unless you're really lucky. Alternatively the best option would be to get a £10 learning remote and someone with a DVD remote you can borrow for a couple of minutes if you can. Don't get excited about popping a code into one to get that to work though as I don't think you'll get lucky - I tried the same for hours and gave up and got a remote from the US via that auction site...!