So, on the road home last night my Octy decided it missed Christmas and did a Christmas tree impression - some new lights lit up on the dash!! Ran rough as well, so called the AA. Seems it was misfiring in cylinder 3, suspected the coil - but he didn't have the part in his van (got me home though). So, limped to eurocarparts this morning acquired ignition coils (2 of, 1 replacement and 1 to keep as a talisman to ward off the issue happening again!) and swapped out the suspect coil!

 

Car runs perfectly well now, and the EPC light has been banished, but, the exhaust management system light is still on. Now, I suspect that this is due to unburnt petrol coming through the dodgy cylinder and has messed up some sensor (lambda sensor maybe) readings and the system thinks there is a problem.......which will hopefully sort itself over time and miles of driving.

 

But, I thought I'd come here and see if there is perhaps a more sinister reason for the light being on ,and in fixing a relatively easy and cheap problem, I have gone and created a bigger, more expensive one????? Oh, my car is '11 plate petrol vRS......

 

Thoughts anyone?

 

Scan it with VCDS or equivalent - light is on as it has a fault logged - until we have the code - any suggestions are purely guesswork.

Well, no scanning as I don't have VCDS and don't know anyone up here that does.......but, short jaunt on the motorway, and the light has gone out! I'm sure there will still be a fault code hidden in the depths of the system, but the car seems good now and is back to its normal self.....which I'm glad about as the weather has turned a bit iffy up here!

That is good news - if the light is out and stays out - then no need to worry about it.

Had the same problem middle of last year. Dash lit up and ran like a tractor! On recovery to skoda, ignition coil had gone. This Saturday the same thing happened again! Again, ignition coil duff....not one but two! Is this a 'known' problem with Octy coils?

Had the same problem middle of last year. Dash lit up and ran like a tractor! On recovery to skoda, ignition coil had gone. This Saturday the same thing happened again! Again, ignition coil duff....not one but two! Is this a 'known' problem with Octy coils?

There was a coil recall on some models but in general the VW group coils have a bad rep. Your dealer should be able to look up your VIN and tell you if your coil packs are part of the recall.

back in 2009 the following engines were part of the campaign (VIN dependant) but they may have extended it since then:

1.8T engine codes APH, AWV, AWP, AWD, AWW, BNU, AUG, AWM AND BKF

3.2L VR6 engine codes BJS, BMX and BAA

3.6L FSI VR6 engine codes BHK and BLV

4.0 W8/6.0 W12 engine codes BDP, BAP and BRP

V8 Non-FSI 4.2L engine codes BGH, BHX and AXQ

V8 FSI/4.2L engine code BAR

2.0T FSI engine code BPY

2.5L engine codes BGP, BGQ, BPS and BPR

I fitted Audi R8 coilpacks to mine. They were ~GBP70 for 4. I doubt they are significantly better but they are red. What more could you ask for?

The R8 coilpacks have a resistance of 5.31 M ohms whereas the OEM coilpacks have 3.3 M ohms.I fitted mine last week.Car runs much smoother.

Edited 17 March, 201511 yr by greek 5vrs

There was a coil recall on some models but in general the VW group coils have a bad rep. Your dealer should be able to look up your VIN and tell you if your coil packs are part of the recall.

back in 2009 the following engines were part of the campaign (VIN dependant) but they may have extended it since then:

1.8T engine codes APH, AWV, AWP, AWD, AWW, BNU, AUG, AWM AND BKF

3.2L VR6 engine codes BJS, BMX and BAA

3.6L FSI VR6 engine codes BHK and BLV

4.0 W8/6.0 W12 engine codes BDP, BAP and BRP

V8 Non-FSI 4.2L engine codes BGH, BHX and AXQ

V8 FSI/4.2L engine code BAR

2.0T FSI engine code BPY

2.5L engine codes BGP, BGQ, BPS and BPR

I fitted Audi R8 coilpacks to mine. They were ~GBP70 for 4. I doubt they are significantly better but they are red. What more could you ask for?

Thanks for that Brad.

Will they still replace them 'after the fact' though? Car is a 2011 model. Have been looking at the R8 red coils last night.

 

Greek,

Thanks for the info. Will the difference in resistance have an effect on the electronics at all though?

Well, just last week, another ignition coil packed in - fortunately I had already bought and kept a spare after the first one went (so much for it acting as a talisman......),so was a very easy fix for the AA man (he just had to ask the car which cylinder was goosed! Have now bought another 2 and plan on just changing them all out and keeping the originals as spares - they'll do a turn in future if need be......

Thanks for that Brad.

Will they still replace them 'after the fact' though? Car is a 2011 model. Have been looking at the R8 red coils last night.

 

Greek,

Thanks for the info. Will the difference in resistance have an effect on the electronics at all though?

I really don't know what the local response is.  In the USA they'll reimburse your out of pocket costs even if you bought a coil from the local parts store.  In Australia, VW will deny that there are any mechanical issues & tell you to stop annoying them.  In the UK?????

 

A bit more resistance (because there are more windings) gives a fatter spark. But if you google "audi R8 coil pack advantages" the very first hit (I get) is a guy saying he's had more issues with R* coils than any other.  Mine just keep on going so I'm happy.

 

Here's the numbers:

Stock: 3.3 M ohms[/size]

Latest superseded part number 06H905115A (plastic shaft, black top)[/size]

5 cylinder coils: 4.75 M ohms[/size]

07K905715F (SS shaft, black top)[/size]

R8's: 5.31 M ohms[/size]

06E905115E (SS shaft, red top)[/size]

Okadas: 6.2 M ohms[/size]

 

you might want to check your spark plugs (gap should be 0.032", general condition) at the same time

http://www.golfmk6.com/forums/showthread.php?t=28303

 

If they were overly expensive I wouldn't bother but VW AU charge silly prices (like $90) for the standard units so I bought the R8s for $140/set before I had a problem and kept the old ones as backups.  Stuff you VW AU

 

I wrote this when i fitted mine in dec 2012

• I fitted mine on Saturday. It took 30 minutes including turning on the gargae stereo, cleaning the engine cover, checking the oil, coolant & washer fluid & topping the battery & drinking beer. The job by itself is 10 minutes tops.

  Only done 45km so far but immediately noticeable was that the cold start 30 second shakes were reduced. Also had a slow, stop/start drive (1hr) into work but managed 5.6L/100km which is at the better end of the usual range for the morning commute.

  • It worked for me because I assume ther was a slight issue with the OEMs. I really have had a dream run with mine unlike many VAG owners.  

 

Thanks for that Brad.

Will they still replace them 'after the fact' though? Car is a 2011 model. Have been looking at the R8 red coils last night.

 

Greek,

Thanks for the info. Will the difference in resistance have an effect on the electronics at all though?

According to US fora,electronics are not adversely affected.As a matter of fact,they insist that these coilpacks generate a stronger spark,which is good.