Renault Megane Coupe + Cabrio (1999 - 2003) - 99 1.6 faulty speedo

Honest John Back Room » Technical matters
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Sat 24 May 2008 17:50
99 1.6 faulty speedo - ae
Hi,

I've got a Renault Megane coupe sport 1.6 1998, the is a problem with the speedo where it seems to work when the car is started from cold then stops shortly afterwards.

I've posted picture of what I think is the speed sensor, can you please review and let me know if I'm looking in the right place:

www.getput.pwp.blueyonder.co.uk/speedo/1.jpg
www.getput.pwp.blueyonder.co.uk/speedo/2.jpg
www.getput.pwp.blueyonder.co.uk/speedo/3.jpg
www.getput.pwp.blueyonder.co.uk/speedo/4.jpg

Thanks.

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Sat 24 May 2008 18:32
99 1.6 faulty speedo - Screwloose
That's the crankshaft position sensor [A.K.A. engine speed sensor or TDC sensor.]

Vehicle speed could well be networked-in from the ABS system. Do you have the exact engine code? This was a change year.

Edited by Screwloose on 24/05/2008 at 18:33

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Sat 24 May 2008 19:16
99 1.6 faulty speedo - ae
Not sure what the code is , I found these letter on the engine: DA 7/02. The car was registered in August 1998. If it wasn't in the ABS where else would it be ?

Thanks.
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Sat 24 May 2008 19:29
99 1.6 faulty speedo - Screwloose

Aug '98 puts it right on the change. If that's a K7M 702 unit, then the early '98 built ones had a 3-wire vehicle speed sensor on the differential linked to the engine ECU and the later ones used a signal from the ABS.

Both types can suffer from failing dashpods too.
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Sat 24 May 2008 20:29
99 1.6 faulty speedo - ae
I can't find it, must be in the ABS, I think I'll take it to the garage next week.

Thanks for your help.
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