Peugeot 406 Diesel W reg - Electrical fault - Air conditioning

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Sat 14 Aug 2010 13:01
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - Smudge

My Peugeot 406 has developed a fault with the air con. When switched on the air con runs cold but after about 30 seconds the 'stop' message on the control panel flashes and bleeps and the message on the display is 'engine overheating'. Engine temperature remains normal. My local garage checked out the diagnostics and nothing was shown or stored. Air con pump and other bits all checked out OK. Their advice was to run it anyway and ignore the message. I am not comfortable doing this. Any ideas as to what is causing this and how to recify it.

I also have a fault with the hand brake in warm weather which has been going on since last year. When the hand brake is pulled up the display flashes 'brake fluid level low' even 'tho I know it is fine.

Are these electrical anomolies just something I have to live with given the age of the car and should I expect the vehicle to develop more. Other than that the car is fine. Any advice and ideas would be much appreciated. Thanks.

Edited by Smudge on 14/08/2010 at 13:02

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Sat 14 Aug 2010 20:06
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - madf

I suspect an earthing problem on the instrument panel..

But as it's French electrics...

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Tue 17 Aug 2010 10:42
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - Smudge

Thanks - will put that to the garage and get them to have a look, but I suspect it is something I will have to live with and that more electrical problems will come to light

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Tue 17 Aug 2010 19:22
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - elekie&a/c doctor

The stop sign showing when the a/c is switched on could indicate a fault with the radiator cooling fan.It is possible that it is not working on the first(slow speed).Needs to be checked.hth

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Wed 18 Aug 2010 10:48
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - injection doc

I agree with eleckie Doc,it needs checking indepth, the garage should be able to run the fans in actuator mode to test their varoius speed & to check other functions as well. If they put pressure gauges on the AC if the High side goes very high within a few mins it would indicate the condensor fans are not working.

fan relays are very common on this model.

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Thu 19 Aug 2010 20:42
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - Smudge

Thanks to you both for these other bits of info. Would my local garage be OK - they have dealt with the car for the past 10 years and specialise in classic cars - or should I find an electrical specialist?

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Mon 30 Jun 2014 23:56
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - leach360

My Peugeot 406 has developed a fault with the air con. When switched on the air con runs cold but after about 30 seconds the 'stop' message on the control panel flashes and bleeps and the message on the display is 'engine overheating'. Engine temperature remains normal. My local garage checked out the diagnostics and nothing was shown or stored. Air con pump and other bits all checked out OK. Their advice was to run it anyway and ignore the message. I am not comfortable doing this. Any ideas as to what is causing this and how to recify it.

I also have a fault with the hand brake in warm weather which has been going on since last year. When the hand brake is pulled up the display flashes 'brake fluid level low' even 'tho I know it is fine.

Are these electrical anomolies just something I have to live with given the age of the car and should I expect the vehicle to develop more. Other than that the car is fine. Any advice and ideas would be much appreciated. Thanks.

I know it's been a while but my 406 is doing exactly the same on both faults. did you ever get a solution?

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Tue 1 Jul 2014 14:34
Peugeot 406 Diesel W reg - Electrical fault - Air conditioning - Gibbo_Wirral

I'm sure I've seen a similar question recently posted on peugeotforums.com

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