405 outside temp guage adjustable?
  • Register
  • Help
Results 1 to 14 of 14
  1. #1
    Fellow Frogger!
    Join Date
    Aug 2001
    Location
    Tamworth
    Posts
    150

    Default 405 outside temp guage adjustable?

    My S2 405 outside temp guage is overreading badly. At 40 deg it is reading 46. Is it adjustable, and if so, how?

    Advertisement
    Cheers,
    Brodie

    '78 604 SL (LPG) ...........for sale ..sold
    '81 604 SL (spares) .......for sale ..sold
    '85 505 GTi ..................for sale ..sold
    '94 405 SRDT............... for sale ..sold
    '07 307 HDi hatch
    '07 307 HDi Wagon

  2. #2
    Budding Architect ???? pugrambo's Avatar
    Join Date
    Jul 2000
    Location
    Parkes - N.S.W - Australia - Earth
    Posts
    12,269

    Default

    is the temp reading high while you ar esitting still or when you are moving ?

    if it is when you are stainery in the car it will always read high as it points to the ground and reads the temp rising from the ground and the heat coming from under the car
    3 x '78 604 SL

    1 x 2018 3008

    1 x 2000 Citroen XM,

    1 x '98 306 GTi6 sadly sold

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0

  3. #3
    Fellow Frogger!
    Join Date
    Aug 2001
    Location
    Tamworth
    Posts
    150

    Default

    Whilst driving at anything up to 120k's
    Cheers,
    Brodie

    '78 604 SL (LPG) ...........for sale ..sold
    '81 604 SL (spares) .......for sale ..sold
    '85 505 GTi ..................for sale ..sold
    '94 405 SRDT............... for sale ..sold
    '07 307 HDi hatch
    '07 307 HDi Wagon

  4. #4
    1000+ Posts Wildebeest's Avatar
    Join Date
    Oct 2004
    Location
    Perth Western Australia
    Posts
    2,694

    Default 405 outside temp gauge?

    Quote Originally Posted by Brodie Shields
    My S2 405 outside temp guage is overreading badly. At 40 deg it is reading 46. Is it adjustable, and if so, how?
    Brodie,
    Take a tip from Alfred E Neuman. "WHY WORRY". The idea of the ambient? temp gauge is to measure extreme low temperatures so that on your next junket up to the snow country you'll be able to check it as you pirouette on the black ice!

  5. #5
    Moderator Alan S's Avatar
    Join Date
    Mar 2001
    Location
    Queensland, Australia
    Posts
    8,923

    Default

    Quote Originally Posted by Brodie Shields
    My S2 405 outside temp guage is overreading badly. At 40 deg it is reading 46. Is it adjustable, and if so, how?
    Working on the assumption that the 40 degrees you are quoting is that being from the weather buraeu, you do realise of course that those readings are "in the shade" whereas the car will possibly be in the sun when it reads the 46??

    Alan S
    If it ain't broke, use a 12" shifter.....that usually does the trick!!

  6. #6
    Fellow Frogger!
    Join Date
    Aug 2001
    Location
    Tamworth
    Posts
    150

    Default

    Yes, it is pretty accurate at zero, which is a good thing. There's a few wooden bridges around here that can be fairly exciting on winter mornings.

    The temp sensor is under the LH mirror, therefore "in the shade". If it's going to read that far out, then why have it?

    So...... back to original question - is it adjustable?
    Cheers,
    Brodie

    '78 604 SL (LPG) ...........for sale ..sold
    '81 604 SL (spares) .......for sale ..sold
    '85 505 GTi ..................for sale ..sold
    '94 405 SRDT............... for sale ..sold
    '07 307 HDi hatch
    '07 307 HDi Wagon

  7. #7
    Fellow Frogger!
    Join Date
    May 2004
    Location
    United Kingdom
    Posts
    338

    Default

    Why not try another temp sensor & see if that improves things?

    The 405 outside temp sensor is pretty good, I have friends who also have this feature on there Vauxhalls & Fords & all the outside temp displays read within 1 degree C of each other.
    2003 Pug 206 GLX TU3JP

  8. #8
    Member
    Join Date
    Sep 2003
    Location
    Boolarra Vic
    Posts
    95

    Default 40 degees in the UK?

    I have to admit to some surprise at 40 Degrees C air temp in the UK - or do you tour the continent?

    I thought the outside temp sensor was on a stalk in the ventilation system plenum. This is shaded but is picking up air that has come up over the bonnet. In very hot sunny conditions it is possible that the air temp just above the road is quite a bit hotter than average ambient and this is being directed over your car and into the ventilation system.

    Mine ( S2) reads high temps when the car has been standing in the sun but soon falls to reasonably appropriate readings once moving although I have to admit I have not calbrated it.

    The Haynes manual show the sensor as a simple thermistor... two wires back to the panel unit - see if you can get one from a wreckers??

    cheers
    Trevor Hoare
    Boolarra Vic

    '95 405Mi16 - what a great car! ; 89 405 ( for my daughter )
    previously 205Si, 504Ti, HR wagon with R16 seats, R16, R10, VW kombi, VW passat, HQ panel van, FB panelvan, Rover'49 P3 4-light

  9. #9
    1000+ Posts
    Join Date
    Jul 2001
    Location
    Perth, Western Australia
    Posts
    6,533

    Default

    Quote Originally Posted by Wildebeest
    ..."WHY WORRY"...
    Or even, 'What, me worry?'

    Hey Brodie, don't drive under 120 km/h...

    Another useless post from Stuey.


    2003 PEUGEOT 206 GTi

  10. #10
    1000+ Posts Wildebeest's Avatar
    Join Date
    Oct 2004
    Location
    Perth Western Australia
    Posts
    2,694

    Default 405 outside temp gauge.

    Quote Originally Posted by Stuey
    Or even, 'What, me worry?'

    Hey Brodie, don't drive under 120 km/h...

    Another useless post from Stuey.
    Well spotted Stuey!! "Et Pluribus Neuman".

  11. #11
    Fellow Frogger!
    Join Date
    May 2004
    Location
    United Kingdom
    Posts
    338

    Default

    The most Ive ever seen on my 405s outside temperature display in the U.K. so far was about 34 degrees C.
    2003 Pug 206 GLX TU3JP

  12. #12
    Budding Architect ???? pugrambo's Avatar
    Join Date
    Jul 2000
    Location
    Parkes - N.S.W - Australia - Earth
    Posts
    12,269

    Default

    all the 405's and the 306's have the outside temp sensor mounted on the passenger side mirror facing the ground

    be warned though that the mirror will cost around $400 from a dealer and i am not sure if the sensor is a separate part or is sold separately

    the only time i have found mine to read high is when the car is sitting still
    3 x '78 604 SL

    1 x 2018 3008

    1 x 2000 Citroen XM,

    1 x '98 306 GTi6 sadly sold

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0

  13. #13
    Fellow Frogger!
    Join Date
    May 2004
    Location
    United Kingdom
    Posts
    338

    Default

    $400 for a 405 door mirror is a RIP OFF!

    The sensor is still available separately for around 18 in the U.K.

    Just pop in a Pug dealer & ask part number 6445 F9
    Last edited by LeePower; 30th January 2005 at 12:59 AM.
    2003 Pug 206 GLX TU3JP

  14. #14
    Moderator Alan S's Avatar
    Join Date
    Mar 2001
    Location
    Queensland, Australia
    Posts
    8,923

    Default

    Quote Originally Posted by Brodie Shields
    Yes, it is pretty accurate at zero, which is a good thing. There's a few wooden bridges around here that can be fairly exciting on winter mornings.

    The temp sensor is under the LH mirror, therefore "in the shade". If it's going to read that far out, then why have it?

    So...... back to original question - is it adjustable?
    OK so it's in the shade, but what about the heat radiating from the road?

    My guess is that in more temperate climates it should be reasonably accurate but in the extremes we get, there's factors that really couldn't be overcome as regards radiation. I have one that is usually in the 30s during summer and often into the 40s if the car is left in a shopping centre car park but at night it reads very accurately (when there's no radiation factor) as it also does on cloudy and cooler days. I've also seen Jap cars with them fitted and the same readings were showing there too. Being in Tamworth, you'd get the same radiation problems as we would as well as the constant stream of hot air coming from under the car when the fans and/or air/con was operating most of which seems to find its way up the side of the car at slower speeds. I have strong reservations that you could do anything about it apart from moving to a cooler climate..


    Alan S
    If it ain't broke, use a 12" shifter.....that usually does the trick!!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •