Temperature Sensor

[Artic_blue_182]

Has anybody else's 182 suffered the same problem?

I can be driving on the motorway when the car is fully warmed up and then the temperature needle drops and reads cold, this can go on for 10 mins or longer and then the needle bounces back up to read hot again. This also takes away 5 MPG if not more.
Other times the needle just bounces about and fluctuates between hot to cold.

I've had it in to the dealers who said they ran their diagnostic tests and couldn't find anything wrong with it. They also took it out for a test and said it didn't do it then. This could be true because it probably does it about 2 out of 5 journeys. I was told to bring the car in when it was actually doing it. I don't know how that works because whenever you ring up they can't fit you in untill 2 weeks time and when you take it off the cuff they say there's nobody free to look at it!!

Has anybody else had this problem and had it fixed under warranty?

Thanks for your help

 

[Dan Page]

im certain this is a common problem with the 182. My first 182 did this! Pretty sure renault can fix it easily tho.

 

[Munson]

It's a problem with the wiring where it joins the sender. They will not diagnose a problem without jiggling the cables. The problem appears to only happen at very high revs, which suggests to me that the wires are being tugged with engine movement.

Fairly common issue, and they never did do a production fix - some Trophys have the same problem. The side effect is over fueling. In my case, my car actually flooded and broke down on a roundabout at the end of DC where I had been giving it death.

 

[Artic_blue_182]

Thanks for that.

So you reckon if I go back and suggest they play around with the wires in order to find the fault?

Do you know how they actually fix it?

Cheers

 

[Chris_H]

pop the connector off and close up the contacts

 

[Artic_blue_182]

Thanks for that!

I'll give that a go, is the connector just under the airfilter box?

 

[Justin182]

I had this problem last night..... but it just stayed a bar below normal after about 30 mins of driving. Then when i gave it beans it came back up, then went down again. Very odd !!

 

[Artic_blue_182]

Yep I find if you give it good hammering the temp goes back up to normal!! But then the same thing can happen another 5 mins later

 

[Fletcher]

I had this problem last night..... but it just stayed a bar below normal after about 30 mins of driving. Then when i gave it beans it came back up, then went down again. Very odd !!

Justin my MK2 172's been doing the same thing now for the last two weeks:S

So is the temp sensor conection under the air filter box?

 

[Justin182]

Im not too sure mate... might have a little look. Went out again 10 mins ago and its doing the same. Didnt quite feel right either at one point ( giving it beans again) Think i will try to fiddle the wires myself and then go to renault as a last resort. Dont want it over-fueling.

 

[Fletcher]

Yeah mine did it quite a bit tonight too. Looks like another trip to Rentech.

 

[Justin182]

At least you have rentech.... i have to make do with Renault lol

 

[Acejon]

It's a problem with the wiring where it joins the sender. They will not diagnose a problem without jiggling the cables. The problem appears to only happen at very high revs, which suggests to me that the wires are being tugged with engine movement.

Fairly common issue, and they never did do a production fix - some Trophys have the same problem. The side effect is over fueling. In my case, my car actually flooded and broke down on a roundabout at the end of DC where I had been giving it death.

Mines just done the same - in Renault as we speak. Mr AA man didnt have a clue, i just used him to get a tow to the nearest dealer.

 

[Andy8CH]

I had this problem last night..... but it just stayed a bar below normal after about 30 mins of driving. Then when i gave it beans it came back up, then went down again. Very odd !!

Mines started doing this as well - has anyone found a fix?
I assumed the mechanical thermometer that controls the flow of coolant to the radiator was starting to fail, but after reading these posts I am not so sure?

 

[Dubai182]

I posted about this last week funnily enough. Its happened 2 or 3 times the last week. Its going for a service next week so i'll mention it then. Also heard its the wiring.

 

[Fletcher]

Mines still going up and down a bar or so, but it hasn't affected mpg of performance. Going to Rentech on the 6th of Dec, so hopefully have all the niggles sorted out.

 

[Andy8CH]

Anyone had any luck solving the low reading temp?

 

[matt182]

I had that and when you dip the clutch it revved to about 2000rpm aswell went back to Renault and they replaced the sender unit thermostat and wiring loom its fine now

 

[matt182]

why does it do that

 

[matt182]

and again

 

[Fletcher]

I've had my temp sensor changed, but it still moves up and down a bar or two, It doesn't affect the driving, or the mpg. Very strange.

 

[matt182]

I dont really know then mine seems to be ok now good old renault lol

 

[edde]

182 seem to have a wiring problem with there temp sensors for some reason. Although there have been a number of bad sensors. If you have a fiddle with the wiring you can see the problem.

Fletch it will be affect the car just to such a small degree your not noticing.