Temp Gauge problem

[augustwoman]

I have a 2004 1.4 206. It runs usually at just under 90c but has developed a fault that shows up when in heavy slow traffic or standing, ticking over for a few minutes in warm weather.

The needle rises towards red accompanied by bleeping which would mean the engine's overheating - except it isn't. The fan kicks in & the needle falls back towards 90c. The car performs fine otherwise.
It's just an annoying problem. I've had a diagnostic test via laptop & the error message comes up as 'GMW Relay' The small garage (not a Peugeot one) thinks it may be a faulty sensor but is not an electrics specialist.

Can anyone advise me on this. I know electric problems can take time to trace (my dad used to be an auto electrician) but think I'll have to get one onto this.

[GrandadMonkey]

206 has been known to suffer badly corroded and/or broken wires at relays.

See here for some information:

http://www.petercoopercarrepairs.co.uk/ ... _fan_w.htm

I know it is not exactly the same as yours because your fan is cutting in.

Ron

[jackieboi206]

I have exactly the same problem with my car, except its not the engine temp gauge that does it, its the smaller temp gauge for the oil. It rises very quickly and when sitting in traffice the oil temp rises to well over 100 - 110, coulld this be the same problem? A corroded/broken wire?

[augustwoman]

Thankfully I got a reliable mobile auto electrician to remedy the fault. It was, as you suggested GrandadMonkey, the 2 corroded relays & associated wiring located in front of the radiator. In this vulnerable area I'm not surprised at the state they were in. The parts cost £10, labour £30 (just over the hour to sort out) + a call-out charge, expensive unless you do it yourself, but I was well satisfied with his workmanship & that the problem was solved. Will keep his details (Darlington area) for future reference!