Ok so last Thursday car became ill and it turned out one of the coils was knackered (yes it was a Sagem).
i have replaced (very simple) said coil with a champion one (as advised on the forum) and the Engine management light and 'engine fault' has now dissappeared.
Car is running ok but does seem a little sluggish and juddery still, not sure if its me expecting the worst or whether there is still something wrong.

Anyway after a coil failure and change should car return to normal and drive ok without it having to go back to dreaded dealer for Diognostics or reset?

Is there any other effects of having a knackered coil? will anything else likeley to have gone wrong?

Also now i have 1 champion coil and 3 Sagem ones whats the likelyhood of more failing and should I replace all 3 Sagems ASAP? as PNL recommended the coils are available for £35 from shop4parts! so would be reasonable!

Just 3 Questions for now, any advice welcome, Thanks in advance

TBH be prepared ot replace them all so best ot at least get one spare or replace all if funds allow.
perhaps disconnect the battery to reset the ECU?

I replaced all mine when i had one go, been fine since.......touch wood

activematt said:

I replaced all mine when i had one go, been fine since.......touch wood

Click to expand...

I can feel the love for your car slowly returning Matt

activematt said:

I replaced all mine when i had one go, been fine since.......touch wood

Click to expand...

Activematt did you replace coils yourself? did 'Engine Fault' dissapear automatically? Did you have to go to dealer for reset?

thnaks

I never got an engine fault when my coil went, the lumpyness of it running on 3 cylinders was enough to bring it to my attention But yeah i changed them myself, they're quite possibly the easiest thing ive done on the stilo

Hi Guys

Is this the same part that causes the preheat coil failure on my JTD??

Cheers

Darren

How can i check if my coils are Sagem or other...?

D-Stilo said:

Hi Guys

Is this the same part that causes the preheat coil failure on my JTD??

Cheers

Darren

Click to expand...

no completely different systems...

Insane said:

How can i check if my coils are Sagem or other...?

Click to expand...

Take one out and look at it, it has the make written on the side

activematt said:

Take one out and look at it, it has the make written on the side

Click to expand...

5 x bosch

How do you know which coil has packed up, if you don't take it to a dealer?

You'll normally get fault codes on your dash display showing which cylinder is in trouble or you can disconnect the low voltage connector to the coils in turn with engine on tickover - when you find the one where nothing changes then that's the one!

DON'T pull back the coil off the plug on a running engine though like people used to do on older engines as there's now 20,000 volts at the plug end of the working coils and that's enough to blow your knackers clean out of your underpants

What are these coils which you speak of? Are they the end caps of the HT leads?

We don't really have HT leads but you're thinking in the right place. There's a separate coil for each cylinder which sits right on top the spark plug so the HT (High tension= high voltage) is only produced just before the plug

:idea: does anyone think a photo guide to changing coils would be a good idea?

No........its just a 10mm bolt!

Obvioulsly remove engine cover first

Exactly as T says, unclip the wire connector, remove 10mm bolt and pull coil out. That easy, even a blind fool could do it.

okey kokey

Hi there
Just done the diagnostic thing at fiat to find out its my 3rd coil thats not wrking. Decided to order the part from shop4part.co.uk, but just wondering do i need to reset the car(disconnect batt) after fitting the coil to take the engine warnin light off. Also im right in sayin the 3rd engine coil is the 3rd from the left, not the right??

Cheers

Ali