I have a 2006 S40 and over the last two weeks have developed two problems.

The external temp sensor shows inaccurate readings.
Overnight start has it at --- or -40 F.
Readings fluctuate off and on and after a few stops/starts it becomes OK.

The remote door locks on and the entire control panel on the driver door go dead at random. The window controls and locks on the other doors continue to work.
It's a totally random failure of the driver side control panel.

I have been to the dealer twice. They did the greasing solution and whatever was campaign 167A, B & C. Some kind of sotware upgrade??

I see where other people in the forum have had similar issues, did anybody actually get the issue resolved? If so, please post what fixed the issue.

Thanks
Chandra

I do not know wherther you finally fixed the problem. It is been quite a while since you posted but anyway.
I had the same problem with driver's door mulfunction 2 months ago. The diagnostics showed DDM problem (Driver Door Module). Although it was replaced problem remained. Finally after having my car in for a couple of days the problem was attributed to some of the lines that go to the front door. After the line was repaired everything worked just fine again.

Hi,
again i don't know if you have got this fixed but i have got my car booked in on Monday morning for the work to be completed.

I had the same issues as you.... -45 external temp, the central locking is intermittent and wont work sometimes, driver side electrics dead and i intermittently get the engine warning light (orange) on for long periods of time without any loss of power etc. ( i did check with the garage before driving on this)

The problem.....

The wiring in the A pillars has chaffed and worn away causing all manor of things to go wrong.

The fix.....
They are gonna replace all the wiring looms in the a frames and apparently it will fix everything. about 4/5 hours work under warranty.

Im pretty confident this is the right fix as i didnt mention all the symptoms when i took it in as i had forgotten/got used to some of them lol. But when he came back with the solution he mentioned all of my symptoms. Fingers crossed and hope this helps anyone else with similar issues.

What is going on with this driver side power issue? Volvo's "fix" isnt working. I took my car in for the greasing of the connectors, and after that its gotten worse. I'm using my service key to get in just so i can slam the door repetedly until it starts working again. And it seems that every S40 customer is bound to face this thing, when i took my car in for the fix, there was another customer there complaining about how her driver side controls kept failing and she mentioned she'd been there 4 times already, what are the chances of that? Sounds like my adventure is just starting. The fact that they are now willing to change wires and modules is quite uplifting, i'm contacting my volvo service center tommorrow to see what they say. I hope everyone here gets this issue fixed very soon!

good luck with yours. i will try to post and let you know how mine goes. my -40 temperature is much more frequent now, nearly everyday. if i see it before i start... slam the door shut again, take the key out and restart. fixed it everytime for me.

I called my Volvo dealer and they told me how to "fix" my electrical problem. These are the idiots words: "Oh sounds like a communications problem. To fix it, open your door with the key only, DON'T USE the remote, do this a couple times and it will fix." Well what he forgot is that every time you do that the alarm will go off and you'll have to use the remote to shut it off! By the way, it doesn't fix anything, problem still going. I did some digging online and found the official bulletin sent out to dealers explaining what the problem is (Corrosion!) and how to fix it, looks simple enough. I just thought I'd pass it on to anyone else that might like it.

So Plomeli have you had your contacts greased or further work??
My local garage didnt even suggest this, they just want to replace the whole a frame looms for new ones. I didnt take it in on monday as things changed but its going in at 8.30am tomorrow morning. I will let you know how it goes.

got my work done and all has been perfect! since. Everything that used to play up is now perfect. Also got a clicking on the front driver seat sorted while it was in. My car is much happier to drive in now i have no annoying warnings or bugs ! shame im gonna sell it but hey i do live 300 yards from work now an its hard to justify keeping it.

well worth getting the work done thou!! :)

Hey Gwilly, glad to hear they finally fixed your problems! I too can report that my door problem is over. I was able to fix it myself, by following the bulletin instructions. Opened up the connector as indicated in the bulliten, 1) heavily sprayed the female and male part of the connectors with some CRC QD Electronic cleaner spray. 2) connected and disconnected the connector repeatedly to remove any corrosion build up 3) some more CRC spray 4) applied a nice amount of di-electric grease, making sure it was in every little hole, and a little extra on the tip of the connector so when it connected everything had some on it. Haven't had a problem since!

If I was you I would go and get a dealership to do the loom repair as they replace the old connectors with gold plated pins to stop fretting/chemical corrosion, your fix wont last.

UPDATE: The problem returned. Took my car to the dealership, and they replaced the bad connectors on the doors. Raydar was right, greasing fix doesn't last!