Renault Clio - 1.2 16v Misfire Information - Renault Forums :: Independent Renault forum

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post #1 of 71 (permalink) Old 31st March 2007 Thread Starter
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Renault Clio - 1.2 16v Misfire Information

We had a 2002 Clio with the 1.2 16 valve (D4F,chassis code BO5) engine in it at work this week which had the engine management light on and the car was intermittantly misfiring.The codes stored in the ECU were refering to a misfire on cylinders 2 and 3.

We traced the fault to the coil pack(surprise,surprise!).The D4F engine is a bit of an odd ball engine as rather than using individual pencil coils it uses one coil to run all the cylinders.



The unit is held on with 3 T30 torx headed bolts (holes marked in picture below)and is very easy to replace.You just pull the leads off of the plugs,remove the multiplug from the coil and undo the three bolts.



A couple of things to bear in mind are the fact that the ends that go on to the plugs are made of very brittle plastic and easy to break,so when changing the plugs,be very careful when removing the leads.Also,the plugs are a strange size and a normal plug socket won't fit them.I used a 14mm deep socket,but you have to be careful as proper plug sockets are designed to avoid damaging the ceramic insulation,but a normal socket isn't.......



The leads are built into the coil pack,so if you manage to break a lead when changing the plugs,you have to replace the whole unit!.Don't panic though,as the whole thing from Renault is only around 35.Also,the leads are numbered so you can't mix them up,but be aware that the French number the cylinders from the flywheel end,rather than the front of the engine like everyone else,so number 1 cylinder is the one nearest the gearbox,number 4 is one nearest the cambelt end.

If you do have to replace a coil pack,it is always advisable to replace the plugs at the same time.

Hope this helps someone out in the future.

I'd rather push my Alfa than drive a BMW....
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post #2 of 71 (permalink) Old 6th April 2007
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Is there a photo of where on the engine block the coil pack is situated?
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post #3 of 71 (permalink) Old 6th April 2007 Thread Starter
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I'm afraid not,but if you follow the plug leads it will be at the other end of them.On the Clio I worked on it was bolted on top of the left side of the engine as you looked at it from the front.

I'd rather push my Alfa than drive a BMW....
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post #4 of 71 (permalink) Old 6th April 2007
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In that case my question is now:

"how do I get the grey cover off from over the spark plugs?"

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post #5 of 71 (permalink) Old 11th June 2007
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From Renault is only around £35:...

Do you have a part number for this?

Thanks
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16v , clio , information , misfire , renault

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