New coil packs

[Steve McF]

My car has has a bit of varying vibration at idle since I bought it 6 years or so back. But whenever i brought it up with the specialists at service time, they couldn't find anything wrong. More recently I have had a misfire/stutter at 2500rpm in mainly in 4th gear.

The car has had new plugs along the way, and the timing chain done, but nothing seems to have sorted this. So I suspect my ignition coils may be a bit suspect. Some time back I bought another set from a breakers, and have swapped them around, but nothing made any difference.

I have a new set of the required plugs as recommended on here, so I was wondering if I should be looking at coil packs too?

If so, are these good value?
https://www.neobrothers.co.uk/car-parts/electrical-lighting/ignition/ignition-coil/oe-direct-ignition-coil-set-x4-12787707

[Steve McF]

Or are these as good, but cheaper?

https://www.ebay.co.uk/itm/152235562119?fits=Car+Make%3ASaab%7CModel%3A9-3&_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D260876%26meid%3D9ae0590c8b5d41919595a38398d1852d%26pid%3D101195%26rk%3D3%26rkt%3D12%26sd%3D155920912359%26itm%3D152235562119%26pmt%3D1%26noa%3D0%26pg%3D4429486%26algv%3DSimplAMLv11WebTrimmedV3MskuWithLambda85KnnRecallV1V2V4ItemNrtInQueryAndCassiniVisualRankerAndBertRecallWithVMEV3CPCAutoWithCassiniEmbRecallAndQueryItemPopRecallAndQueryExpansion%26brand%3DOE%252B&_trksid=p4429486.c101195.m1851&itmprp=cksum%3A1522355621199ae0590c8b5d41919595a38398d1852d%7Cenc%3AAQAIAAABoBIrA5X1vid5NElyTS9VP%252B1UDU3brXlp7Y83ZwoEemYoEd8dMYtY0TcaiV3FCw4DdsmOiNTYywp9igkKH5RNA1zjc9RW64Qvu9FNZ5uWaCc0j%252FKUn4xZMTbm8DZjhnsHJ6UhzsZjhmh3StQbKPrdfvJwtS0J0Y7rmBGi%252B3UXcYM8Rc3Z5WnKKUnyviTTVW%252B4SFblppgxWspJAj4CnhymdE%252BKyIe2DMrv7rcg5paR1b7oFZ9HJ6isreF6S7XLFJIHXf9nM6JMSYJdCIcPP21uIj%252FFtJzlf8IhqM3xr0a2ilevShfFgU2b1jkbS3izUdadEaljV6ef2qMX96hjKZ%252Fso94FoqQMIReyRk0YqTkGnPcc133dcN4xnQFOoA9vD7ssrfhkX2YPtwkXGzfbn8cLAYNMLqOLXXV4KhPHjJyRsymkVDGLWrx5jJfXRUFhvT%252BQuhs8RzYQs0TmJwk%252FPpY1w6dHIVCGTCaGBwClz7DcTimGwFj1Yh0EwzumNpKwjlSLTkfJp3%252FVNdBE81Hdy4VC6IGLuNhs9gd45O3lYj6Eqf1a%7Campid%3APL_CLK%7Cclp%3A4429486&itmmeta=01HQ5VN1W26K8CQDYZX62MFYXJ

[sgould]

The cheaper set should be fine.  Saabtech Parts Europe on eBay is run by the guy who was parts manager at Reading Saab, then moved to Saabtech Welwyn, but when that went into liquidation, he set up on his own in Harlow.  I've bought a lot of things from him.  They have been fine, and usually OE quality.

[carrera]

I have obtained the service history for my 2.0 NG petrol car from the garage the work was done at (over 8k in two years).

In there is a set of coil packs for £86.60 + vat - I believe they are the same part

With your misfire / judder do you get a "Service Due Soon" message ?

That's an indication that a DTC has been generated, but not one bad enough to throw a check engine light, in which case threatening the car with a code reader might be helpful.

VXDiag is proving to be indispensible for my car(s) 

[Steve McF]

No I don't get any warnings or fault codes. Hence the specialists never finding anything.....

[Steve McF]

The cheper set should be fine.  Saabtech Parts Europe on eBay is run by the guy who was parts manager at Reading Saab, then moved to Saabtech Welwyn, but when that went into liquidation, he set up on his own in Harlow.  I've bought a lot of things from him.  They have been fine, and usually OE quality.

I did wonder if he was reputable, but sounds like he is 👍

[aerojon]

Why hasn't you "specialist" looked a the amount misfires per cylinder..

Service due message has no connection with dtc's what so ever..

[carrera]

Why hasn't you "specialist" looked a the amount misfires per cylinder..

Service due message has no connection with dtc's what so ever..

Thats my mistake - having been looking at coil packs and seeing the B207 & A20NHT share the same components I was thinking the car was a 9-5 NG, which does operate that way

Good old Tech II should provide the appropriate information to diagnose properly

[Steve McF]

Why hasn't you "specialist" looked a the amount misfires per cylinder..

Service due message has no connection with dtc's what so ever..

Yeah well I haven't been back to that particlular specialist again as their Saab 'specialism' seems to have gone off in favour of other brands which is a shame as I used to use them in the early days of my opwnership of the 9-3, and also my previous 9-5 years ago (they're in Birmingham, and it isn't Bagnals, which is the one that I do want to try).