db9 coils and plugs service interval??
db9 coils and plugs service interval??
Author
Discussion

karatemaserati

Original Poster:

169 posts

165 months

Tuesday 14th June 2022
quotequote all
see varying times given for these... what is the actual interval

AdamV12V

5,314 posts

206 months

Tuesday 14th June 2022
quotequote all
it's covered in the servicing section of the owners manual. wink

The V12 plugs/coils are every 7 years or 70,000 miles, whichever comes first.

Fullmel

146 posts

194 months

Tuesday 14th June 2022
quotequote all
The plug change on V12 engines was updated to 70k only and not on time.

AdamV12V

5,314 posts

206 months

Tuesday 14th June 2022
quotequote all
So they changed it after printing the manuals which say its part of the 7th service interval????

My manual is a 2017 car so pretty late in the whole lifecycle of the V12 na too….

Markv8v

165 posts

186 months

Tuesday 14th June 2022
quotequote all
The problem with changing to mileage only is my DBS has 26,000 miles and is 12 years old so would be over 20 years old before getting new plugs that is just ridiculous.
I have had mine changed and the coil packs for peace of mind, to avoid any chance of future miss fire issues.
Manufacturers only make these changes to save servicing costs just look at long life oil servicing in main stream brands.
Some brands are now18K or 2 years same old oil, plain stupid the oil comes out like water.

Simpo Two

92,708 posts

294 months

Tuesday 14th June 2022
quotequote all
Markv8v said:
The problem with changing to mileage only is my DBS has 26,000 miles and is 12 years old so would be over 20 years old before getting new plugs that is just ridiculous.
I have had mine changed and the coil packs for peace of mind, to avoid any chance of future miss fire issues.
Manufacturers only make these changes to save servicing costs just look at long life oil servicing in main stream brands.
Some brands are now18K or 2 years same old oil, plain stupid the oil comes out like water.
Time vs mileage, hmm.

My car fell victim to the 'gearbox sealed for life' myth. Yes the car had only done 14K miles, but it was 14 years old and the oil was shot. As a result the torque converter had to be replaced. The main dealer who had serviced the car every year for 13 of those years recommends changing the oil at 40K miles (note it's only a recommendation). But that still wouldn't have saved it.

As for coilpacks and plugs, it seems that V12 owners swap these out like normal people swap bog rolls. It's quite incredible. No other car I've ever owned has needed coilpacks and plugs every two years, they just worked. Is it a feature of V12 engines in general or just this one I wonder. But to the question - it depends on whether coilpacks/plugs degrade with time. I don't know.

AdamV12V

5,314 posts

206 months

Tuesday 14th June 2022
quotequote all
Simpo Two said:
As for coilpacks and plugs, it seems that V12 owners swap these out like normal people swap bog rolls. It's quite incredible. No other car I've ever owned has needed coilpacks and plugs every two years, they just worked. Is it a feature of V12 engines in general or just this one I wonder.
They don't need them every 2yrs - I've never known anyone swap them after 2yrs either, in fact most owners I know have never swapped theirs regardless of age unless they have had a problem with them.

The V12 manual clearly states its the 7th service interval. That said dealers offer it as an "optional" item, so I guess given the cost many people decline thinking "why should I replace something at a large cost that isn't causing me a problem."

7yrs old is a big age IMHO. My car is 5yrs old now and its already the oldest car I've almost 30yrs, that said its a keeper so it's only getting older and older so I too am going to have to cross this bridge. My plan is to stick to the manual and change them every 7th service on the dot, given they are the one item that if overlooked can result in a trashed engine.


Edited by AdamV12V on Tuesday 14th June 18:56

Simpo Two

92,708 posts

294 months

Tuesday 14th June 2022
quotequote all
AdamV12V said:
They dont need them every 2yrs - Ive never known anyone swap them after 2yrs either, in fact most owners I know have never swapped theirs regardless of age unless they have had a problem with them.
Yes, it got confused with the oil comment.

I've had several high mileage 'old' prestige cars over the years, well over 100K miles, as my daily driver and none of them ever had coilpack or gearbox problems.

Longy00000

2,121 posts

69 months

Tuesday 14th June 2022
quotequote all
My car is also now 5 years old and I too will probably look to have them done at the 7 year mark or maybe 8 but not later than that. I would also look to have the auto box serviced about the same time.
That should then leave me a year or two to recover from what ever rip off bill I was presented with so I could look to have the carbon ceramic brakes done around the 10th year, assuming of course they last till then (fingers crossed)

8Tech

2,210 posts

227 months

Tuesday 14th June 2022
quotequote all
Coil packs are a huge problem on many marques, in particular BMW, Ford, VW and Vauxhall. In all these cases, it appears to be that if the coil packs are covered by a cosmetic trim cover, they are infinitely more likely to fail. I believe the insulating effect of these covers causes the coil packs to overheat, especially when the engine sits after a particularly enthusiastic drive.

When I replaced my V12 coil packs, I was very tempted to leave the coil covers off, vent them or even force vent them with a couple of small 12v fans like computer fans similar to the Aston headlamp condensation kits. At the time, I did not as I was doing other mods at the time (oil catch tank and throttle body porting) and was over eager to get the car back on the road.

If i ever do suffer a coil failure though, I will definitely fan feed cool air into those coil areas similar to the turbo performance racers having the oil pump run for a minute or so after shutdown to cool the turbo shaft.

Simpo Two

92,708 posts

294 months

Tuesday 14th June 2022
quotequote all
8Tech said:
Coil packs are a huge problem on many marques, in particular BMW, Ford, VW and Vauxhall. In all these cases, it appears to be that if the coil packs are covered by a cosmetic trim cover, they are infinitely more likely to fail. I believe the insulating effect of these covers causes the coil packs to overheat, especially when the engine sits after a particularly enthusiastic drive.

When I replaced my V12 coil packs...
You're fortunate to have that skill. If you go to an Aston dealer or indy, just getting the inlet manifolds off and back on is over £1,000 before you've even bought 12 coilpacks and plugs. Having got caught once by an indy on The Great Misfire Goosechase, I know that my friendly local mechanic is able to do that now.

Phil57DBS

208 posts

104 months

Thursday 16th June 2022
quotequote all
for reliability and ventilation, do not reassemble the plate on the 6 coils per side, simply already done!

Number 5
https://www.scuderiacarparts.com/fr-fr/part-finder...

Edited by Phil57DBS on Monday 20th June 21:45

Simpo Two

92,708 posts

294 months

Thursday 16th June 2022
quotequote all
Phil57DBS said:
for reliability and ventilation, do not reassemble the plate on the 6 coils per side, simply already done!
I don't know what the 'plate' is, but what is its function? (ie that you lose if removed)