Spark plugs

Alpine · Aug 19th, 2017, 08:34

I can see from the paperwork that came with my car that the spark plugs were last changed 9 years ago. But since then the car has only done 30k miles.

I assume spark plugs need changing based on mileage and not time, so are they ok for a bit longer?

DaveNP · Aug 19th, 2017, 08:44

Pop them out and have a look at them? In general I'd expect spark plugs to wear with mileage but cars doing low mileages can do funny things too.

ITSv40 · Aug 19th, 2017, 10:18

Volvo sparkplugs have a service life of around 36,000mls so your are nearing the end of their life. After 9 years and assuming they have not been removed in the meantime there is a very real possibility they are seized in the head.

For what new plugs cost, get a new set and change them for peace of mind.

Clan · Aug 19th, 2017, 11:05

Quote:

Originally Posted by Alpine

I can see from the paperwork that came with my car that the spark plugs were last changed 9 years ago. But since then the car has only done 30k miles.

I assume spark plugs need changing based on mileage and not time, so are they ok for a bit longer?

low mileage with spark plugs means short journeys and lots of cold starts which can coke up the plugs , If you follow the official service recommendations you should have changed them 3 times by now ...

Alpine · Aug 19th, 2017, 19:24

Thanks all, I will have a look at them

Alpine · Aug 20th, 2017, 08:45

.....anyone know what the correct plugs are?

And without having a torque wrench, how do I ensure I do not over tighten them?

Clan · Aug 20th, 2017, 09:27

Quote:

Originally Posted by Alpine

.....anyone know what the correct plugs are?

And without having a torque wrench, how do I ensure I do not over tighten them?

Volvo Part Number 8642660

Just tighten with moderate pressure , you will feel the washer crush and the plug will go tight , leave it there ...

Alpine · Aug 31st, 2017, 19:34

Well, I replaced my plugs last night and found it surprisingly easy.

From the service history I have, I assumed the plugs were last changed 9 years ago by a Volvo dealer. I was therefore surprised to find Bosch super plus plugs, and not Volvo branded ones.

The plugs I took out looked a little oily, is that normal?

I've fitted the correct NGK plugs being BKR6ETUC

martin_r_smith · Aug 31st, 2017, 22:47

Should have fitted genuine volvo, others (including ngk) can cause issues.

pookie · Aug 31st, 2017, 23:08

I've run my 855R on NGK plugs for the last 10 years with no issues whatsoever.

Salut!

Pookie

Aug 19th, 2017, 08:34	#1
Alpine Senior Member Last Online: Apr 13th, 2024 08:14 Join Date: Jan 2012 Location: Leeds	Spark plugs I can see from the paperwork that came with my car that the spark plugs were last changed 9 years ago. But since then the car has only done 30k miles. I assume spark plugs need changing based on mileage and not time, so are they ok for a bit longer? __________________ Phil '98 V70 2.5T (manual '99MY)

Aug 19th, 2017, 08:44	#2
DaveNP Non VOC Member Last Online: Today 06:45 Join Date: Jun 2011 Location: Milton Keynes	Pop them out and have a look at them? In general I'd expect spark plugs to wear with mileage but cars doing low mileages can do funny things too. __________________ David V70 2.5 10v Torslanda Manual 98 Sreg

Aug 19th, 2017, 10:18	#3
ITSv40 VOC Member Last Online: Today 14:59 Join Date: Mar 2008 Location: Northampton	Volvo sparkplugs have a service life of around 36,000mls so your are nearing the end of their life. After 9 years and assuming they have not been removed in the meantime there is a very real possibility they are seized in the head. For what new plugs cost, get a new set and change them for peace of mind. __________________ 2001 V40 2.0lt Sport lux - Daily Driver. 174k miles. 2003 C70 2.4 GT Convertible - Garage Queen. 65k miles. http://www.neptuno6benagil.com

Aug 19th, 2017, 19:24	#5
Alpine Senior Member Last Online: Apr 13th, 2024 08:14 Join Date: Jan 2012 Location: Leeds	Thanks all, I will have a look at them __________________ Phil '98 V70 2.5T (manual '99MY)

Aug 20th, 2017, 08:45	#6
Alpine Senior Member Last Online: Apr 13th, 2024 08:14 Join Date: Jan 2012 Location: Leeds	.....anyone know what the correct plugs are? And without having a torque wrench, how do I ensure I do not over tighten them? __________________ Phil '98 V70 2.5T (manual '99MY)

Aug 31st, 2017, 19:34	#8
Alpine Senior Member Last Online: Apr 13th, 2024 08:14 Join Date: Jan 2012 Location: Leeds	Well, I replaced my plugs last night and found it surprisingly easy. From the service history I have, I assumed the plugs were last changed 9 years ago by a Volvo dealer. I was therefore surprised to find Bosch super plus plugs, and not Volvo branded ones. The plugs I took out looked a little oily, is that normal? I've fitted the correct NGK plugs being BKR6ETUC __________________ Phil '98 V70 2.5T (manual '99MY)

Aug 31st, 2017, 22:47	#9
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	Should have fitted genuine volvo, others (including ngk) can cause issues. __________________ 1983 244

Aug 31st, 2017, 23:08	#10
pookie Premier Member Last Online: Apr 2nd, 2021 21:13 Join Date: May 2006 Location: Stockport	I've run my 855R on NGK plugs for the last 10 years with no issues whatsoever. Salut! Pookie __________________ Growing old disgracefully

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