Speedo Issues

[ClioChris95]

Right I have a mk2 clio sport. And the speedo sometimes doesn't work. The guy I bought the car off said the speedo was working for 5 days then he drove I and it just went now before I rip out the dash I wanted to ask you guys if you have any ideas on what it could be
Thank you

 

[B00mer]

Does it on my cup when I'm on the motorway mostly. Speedo sensor I've been told, might need a clean or replacing but I think there about 13 pounds from what I have read.

Have a search on the forum bud quite a few posts about it.

 

[krappy]

Yep speedo sensor - cheap, easy to replace and no need to take the dash apart

 

[ClioChris95]

Thank you guys so much, that's made my life a bit easier

 

[Jay_G]

For what it's worth, Renparts do a brand new genuine one on ebay for 15 odd quid, iv just ordered one for me!

 

[-Craigo]

If you go about changing this on your own, could you post up a guide with pics? Always useful for people not In the know how ..... Like myself hahah.

 

[Kat@Renparts]

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=280944227973 thats the link to ours on ebay!

 

[Jay_G]

If anyone wants to know how to change it, here you go:

Look towards back of engine/gearbox/behind air box, and look down. It's on the top left hand side of the box.

Removal:
(May have to remove engine cover, I did it fine but caught my arm on it a few times)
Unplug the plug (there's a clip on the side)
Pull the plug off
Pull the sensor out (needs a fair old tug as its clipped in)
Be careful as there is a little bit of gearbox oil on there end of it.

Fitting:
New one pushes straight into the hole, plug goes back on top of it. Again, little bit of force as It clips in.

I found the plug fits any way you put it, but the pin layout will only let it go one way (there's 2 pins on one side, one on the other), line them up and bobs your uncle. Give it a little tug to make sure it's all secure.

Easy as that. Soon as you see the sensor you will understand anyway, it's really clear and easy. Took me 2 minutes, longest part was lining up the plug again.

 

[-Craigo]

Just replied to your pm then seen this thread haha, oops! Nice guide mate! In the know how now!

 

[-Craigo]

Not this thread, this post****

 

[The Chubby Pirate]

I said in another post, its easier to do it when the cars cold as its quite close to the manifold!

 

[krappy]

And there's a silver heatshield that clips onto the sensor to help protect it from the heat of the manifold, so don't forget to put it back on otherwise you'll probably need another speedo sensor fairly soon lol...

 

[Tasand]

On my clio 172, the speedo is inaccurate. 25mph'ish on the speedo is 30/32mph. Would this be the speed sensor what everyone is talking about or something else ??

many thanks

 

[Jay_G]

And there's a silver heatshield that clips onto the sensor to help protect it from the heat of the manifold, so don't forget to put it back on otherwise you'll probably need another speedo sensor fairly soon lol...

Ooooh, mine didn't have that!

 

[krappy]

On my clio 172, the speedo is inaccurate. 25mph'ish on the speedo is 30/32mph. Would this be the speed sensor what everyone is talking about or something else ??

many thanks

That is a lot to be out by at that speed, even allowing for 'manufacturer tolerance'. Do you have different wheel/tyre combination to stock - a larger rolling diameter will throw out the speedo although over 20% would be extreme.

Usually for this speedo issue the symptom is an erratic speedo needle...

Ooooh, mine didn't have that!

See if you can pick one up from somewhere - wreckers etc - certainly can't hurt to have it on...

 

[Tasand]

That is a lot to be out by at that speed, even allowing for 'manufacturer tolerance'. Do you have different wheel/tyre combination to stock - a larger rolling diameter will throw out the speedo although over 20% would be extreme.

Usually for this speedo issue the symptom is an erratic speedo needle...

I did the fault code procedure where you hold in the button on the end of the wiper stalk and then the speedo does its set routine. The rev counter stops on every whole value (10, 20, 30 etc), should the speedo itself stop on Round numbers ? It stopped on 25 45 75 115 135 & 155. Is this usual ?

 

[Jay_G]

I did the fault code procedure where you hold in the button on the end of the wiper stalk and then the speedo does its set routine. The rev counter stops on every whole value (10, 20, 30 etc), should the speedo itself stop on Round numbers ? It stopped on 25 45 75 115 135 & 155. Is this usual ?

Nope! It should stop on all whole values. Sounds like someone's had the spindle off yours and didn't put it back properly

 

[Tasand]

is it worth changing the speedo sensor aswell as its only the MPH dial, the rev dial is fine.