external temp display

[WKD_406TURBO]

Hi all
Has anyone had problem with the external temp display giving false readings and fluctuating between 30 and 50 c i think its a dodgy earth but cant locate the senor if any one knows where it is on a 1997 exec turbo i would be greatfull for the info.
many thanks
Chris

[deathbydiesel]

If it's
A) French
B) Electric
or
C) Both
Then it'll feck up at some point, the sensor iirc is in the Passenger wing mirror.hth

[Welly]

If you mean the temp reading seems too high, then it will read high given that heat from around the car and engine will generate a high reading (mine said 42 the other day). A true reading will be shown at a steady air speed across the sensor (wing mirror) after some 20 minutes or so, even then they are not wholly acurate.

If you mean the reading keeps jumping about different readings then it is faulty, I would not know where to start tracing a fault like that TBH but you could take your wing mirror to bits and have a look.

[WKD_406TURBO]

Ive orderd a new one from peugeot which instead of the usual it will be around ?100.00 mark for anything electrical on a 406 exec turbo
the part number is 6445Y8 and only ?11.51 + vat from your local pug garage so as soon as i have replaced the original one, i will post the results. .
Thanks for your help
Chris

[Welly]

Nice one, would like to know if it solves the problem.

[WKD_406TURBO]

Replaced the temp sender and tested took about 1 hour to remove door mirror, strip, feed and solder new cables.
reasemble mirror.
reading is stable at 27 c and diddnt rise checked external temp on my other car which states the same
the old reading went from 30 c in winter to 50 c last week

[Welly]

Nice repair there chap