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    Renault Megane TD (02) - Orange coil

    Took my partner to work today and noticed the car was a bit slugglish, on the way back acceleration was slow and the car wouldnt get past 60 on the dual carriageway. The orange coil warning light came on and didnt go off until I switched the car off at home (about 3 miles later). Whats the problem with it? The handbook isnt helpful at all, and is very vague about what the problem could be (electronics i think it said?). This has happened before but only lasted for a couple of seconds and then thinks got back to normal.

    11 Comments

    If it's a diesel (TD) I think the 'orange coil' light is to tell you the heater plugs are on.

    The heater plugs are in the tops of the engine cylinders (a bit like sparkplugs) and normally come on for a few seconds as you are starting from cold, to make a hot spot in the cylinder. This makes the engine easier to start from cold.

    If that's right, it could be that the engine management system thinks you are starting form cold and puts the heater plugs on. It's either getting duff information (duff sensor, duff connection) or has a problem of itself.

    First step is to check a handbook to see what the lamp means for sure. Next step could be to get the engine management unit connected to a garage code reader and see of it's reporting any problems.

    Original Poster

    Some_Bloke

    If it's a diesel (TD) I think the 'orange coil' light is to tell you the … If it's a diesel (TD) I think the 'orange coil' light is to tell you the heater plugs are on.The heater plugs are in the tops of the engine cylinders (a bit like sparkplugs) and normally come on for a few seconds as you are starting from cold, to make a hot spot in the cylinder. This makes the engine easier to start from cold. If that's right, it could be that the engine management system thinks you are starting form cold and puts the heater plugs on. It's either getting duff information (duff sensor, duff connection) or has a problem of itself.First step is to check a handbook to see what the lamp means for sure. Next step could be to get the engine management unit connected to a garage code reader and see of it's reporting any problems.



    Ok thanks it says,

    "heater plugs on" (on diesel) and electronic fault (on petrol and diesel) warning light.
    - electronic fault warning light: if it comes when you are driving there is an electric or electronic fault. Consult your renault dealer asap.

    Whats my best (or cheapest) option now, renault dealer or private garage?

    Being a Renault and based on the age put all your money on electrical fault.

    gbspurs

    Being a Renault and based on the age put all your money on electrical … Being a Renault and based on the age put all your money on electrical fault.



    I thought that too but didnt want to get OP worried too much in case its an easy fix.

    Could be a simple fault like a faulty glowplug, Easy fix but probably an electronic fault, Needs hooking up to a diagnostics machine, Resetting and test drive then hooking up again, Then see what fault/s it's reporting and go from their.

    When fixed get rid and buy something reliable that isn't French.

    Original Poster

    shauneco

    Could be a simple fault like a faulty glowplug, Easy fix but probably an … Could be a simple fault like a faulty glowplug, Easy fix but probably an electronic fault, Needs hooking up to a diagnostics machine, Resetting and test drive then hooking up again, Then see what fault/s it's reporting and go from their.When fixed get rid and buy something reliable that isn't French.



    how much does it normally cost to have it hooked up??

    Original Poster

    thanks for everyones help by the way!!!!

    steveuk

    how much does it normally cost to have it hooked up??



    Off the top of my head, Around £40-£50 but massively depends, Sometimes less but depends if you let them fix it, Might be cheaper as that was a few years a go. I've got my own basic diagnostics code reader but theirs certain codes that won't read, £22 on ebay, item number: 270727635872

    It's compatible with most cars from 2000 onwards, Some prior to that.

    Original Poster

    rang renault, it would have to be booked in, its 79.95 (!) if I dont get them to repair the problem. Can anyone recommend a good reliable garage in Newcastle?

    Original Poster

    independent quoted £30 + VAT, however thought I best check that it was still a problem and car is fine now. thanks for everyones help!

    All the symptoms of a faulty glowplug. You don't need to go to a Renault garage to get that sort of problem fixed. Ask around for a good local independant.
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